Dr. Reggie L. Hudson

Dr. Reggie L. Hudson

  • 301.286.6961
  • NASA/GSFC
  • Mail Code: 691.1
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Reggie Hudson is a research scientist working at the NASA Goddard Space Flight Center.  To learn more about him, his work, and his colleagues, visit the web pages of the Cosmic Ice Laboratory.

    Education

    1978 - Ph.D., Physical Chemistry, University of Tennessee (Knoxville, TN)

    1974 - A.B., Chemistry and Mathematics, Pfeiffer University (Misenheimer, NC)

    Positions/Employment

    1/2009 - Present

    Research Astrochemist

    NASA Goddard Space Flight Center, Greenbelt, Maryland USA

    Member of the Cosmic Ice Laboratory research group; Associate Chief for the Astrochemistry Laboratory (2011-2018); Acting Chief for the Planetary Systems Laboratory (2010-2011)

    1/2010 - 6/2018

    Lecturer

    Department of Astronomy, University of Maryland, College Park, Maryland, USA
    9/1978 - 12/2008

    Professor of Chemistry

    Eckerd College, St. Petersburg, Florida USA

    (tenured faculty member)

    8/1985 - 7/1986

    Visiting Research Professor of Chemistry

    University College London, London, England

    Research Interests

    Astrochemistry, Astrobiology, Planetary Science, Physical Chemistry

    Chemistry and physics of cosmic ices (cometary, icy satellite, and interstellar)
    Radiation chemistry and photochemistry applied to astrochemical problems
    Molecular spectroscopy, especially as applied to molecular structure and reactions

    Teaching Experience

    Courses in physical chemistry, astrobiology, and astronomy
    Courses in introductory chemistry and in the history and methods of science
    Courses in Eckerd College's Honors Program (served as program's first director)

    Professional Societies

    American Chemical Society: Chemical Education, Physical, and History Divisions, 1974 - Present
    Royal Society of Chemistry (U.K.): Education and Faraday Divisions , 1986 - Present
    American Astronomical Society: Division for Planetary Sciences, Laboratory Astrophysics Division, 1998 - Present
    American Geophysical Union, 2000 - Present
    Sigma Xi, 1977 - Present

    Professional Service

    Chair, Astrochemistry Subdivision, American Chemical Society (2016-2017)

    Awards

    John M. Bevan Award for Teaching Excellence and Campus Leadership, September 2008 (Eckerd College)

    Lloyd W. Chapin Award for Excellence in Scholarship, September 2005 (Eckerd College)

    Selected Publications

    Refereed

    Hudson, R. L., Y. Y. Yarnall, and F. M. Coleman. 2020. "Infrared band strengths and other properties of amorphous and crystalline dimethyl ether." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 233: 118217 [10.1016/j.saa.2020.118217]

    Hudson, R. L., and R. F. Ferrante. 2020. "Mid-infrared spectra of dipropargyl ether ices revisited." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 233: 118206 [10.1016/j.saa.2020.118206]

    Materese, C. K., P. A. Gerakines, and R. L. Hudson. 2020. "The Radiation Stability of Thymine in Solid H2O." Astrobiology, 20 (10): ast.2019.2199 [10.1089/ast.2019.2199]

    Yarnall, Y. Y., P. A. Gerakines, and R. L. Hudson. 2020. "Propanal, an interstellar aldehyde - first infrared band strengths and other properties of the amorphous and crystalline forms." Monthly Notices of the Royal Astronomical Society, 494 (4): 4606–4615 [10.1093/mnras/staa1028]

    Hudson, R. L. 2020. "Preparation, identification, and low-temperature infrared spectra of two elusive crystalline nitrile ices." Icarus, 338: 113548 [10.1016/j.icarus.2019.113548]

    Hudson, R. L., M. J. Loeffler, R. F. Ferrante, P. A. Gerakines, and F. M. Coleman. 2020. "Testing Densities and Refractive Indices of Extraterrestrial Ice Components Using Molecular Structures—Organic Compounds and Molar Refractions." The Astrophysical Journal, 891 (1): 22 [10.3847/1538-4357/ab6efa]

    Hudson, R. L., and R. F. Ferrante. 2020. "Quantifying acetaldehyde in astronomical ices and laboratory analogues: IR spectra, intensities, 13C shifts, and radiation chemistry." Monthly Notices of the Royal Astronomical Society, [10.1093/mnras/stz3323]

    Hudson, R. L., and F. M. Coleman. 2019. "Solid-State Isomerization and Infrared Band Strengths of Two Conformational Isomers of Cyclopropanecarboxaldehyde, a Candidate Interstellar Molecule." ACS Earth and Space Chemistry, 3 (7): 1182-1188 [10.1021/acsearthspacechem.9b00058]

    Hudson, R. L., and F. M. Coleman. 2019. "Infrared intensities and molar refraction of amorphous dimethyl carbonate – comparisons to four interstellar molecules." Physical Chemistry Chemical Physics, 21 (21): 11284-11289 [10.1039/c9cp01709g]

    Hudson, R. L., and P. A. Gerakines. 2019. "Molecular identifications in experiments with astronomical ice analogues: new data, old strategies, and the N2 + acetone system." Monthly Notices of the Royal Astronomical Society, 485 (1): 861-871 [10.1093/mnras/stz254]

    Hudson, R. L., and P. A. Gerakines. 2019. "Propynal, an interstellar molecule with an exceptionally strong C≡C infrared band – laboratory infrared data and applications." Monthly Notices of the Royal Astronomical Society, 482 (3): 4009-4017 [10.1093/mnras/sty2821]

    Hudson, R. L., and E. F. Mullikin. 2019. "Infrared band strengths for amorphous and crystalline methyl propionate, a candidate interstellar molecule." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 207: 216-221 [10.1016/j.saa.2018.09.032]

    Hudson, R. L., and P. A. Gerakines. 2018. "Infrared Spectra and Interstellar Sulfur: New Laboratory Results for H2S and Four Malodorous Thiol Ices." The Astrophysical Journal, 867 (2): 138 [10.3847/1538-4357/aae52a]

    Hudson, R. L., and M. H. Moore. 2018. "Interstellar Ices and Radiation-induced Oxidations of Alcohols." The Astrophysical Journal, 857 (2): 89 [10.3847/1538-4357/aab708]

    Hudson, R. L., P. A. Gerakines, and R. F. Ferrante. 2018. "IR spectra and properties of solid acetone, an interstellar and cometary molecule." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 193: 33-39 [10.1016/j.saa.2017.11.055]

    Loeffler, M. J., and R. L. Hudson. 2018. "Coloring Jupiter's clouds: Radiolysis of ammonium hydrosulfide (NH 4 SH)." Icarus, 302: 418-425 [10.1016/j.icarus.2017.10.041]

    Hudson, R. L. 2018. "Radiation chemistry of solid acetone in the interstellar medium – a new dimension to an old problem." Physical Chemistry Chemical Physics, 20 (8): 5389-5398 [10.1039/c7cp06431d]

    Hudson, R. L., M. J. Loeffler, and K. M. Yocum. 2017. "Laboratory Investigations into the Spectra and Origin of Propylene Oxide: A Chiral Interstellar Molecule." The Astrophysical Journal, 835 (2): 225 [10.3847/1538-4357/835/2/225]

    Hudson, R. L., M. J. Loeffler, and P. A. Gerakines. 2017. "Infrared spectra and band strengths of amorphous and crystalline N2O." The Journal of Chemical Physics, 146 (2): 024304 [10.1063/1.4973548]

    Loeffler, M. J., and R. L. Hudson. 2016. "What is Eating Ozone? Thermal Reactions between SO2 and O3: Implications for Icy Environments." The Astrophysical Journal, 833 (1): L9 [10.3847/2041-8213/833/1/l9]

    Loeffler, M. J., R. L. Hudson, N. J. Chanover, and A. A. Simon. 2016. "The Spectrum of Jupiter's Great Red Spot: The Case for Ammonium Hydrosulfide (NH4SH)." Icarus, 271: 265-268 [10.1016/j.icarus.2016.02.010]

    Hudson, R. L. 2016. "Infrared Spectra and Band Strengths of CH3SH, an Interstellar Molecule." Phys. Chem. Chem. Phys., 18 (36): 25756-25763 [10.1039/c6cp01475e]

    Gerakines, P. A., and R. L. Hudson. 2015. "First infrared band strengths for amorphous CO2, an overlooked component of interstellar ices." The Astrophysical Journal Letters, 808 (2): L40 [Full Text (Link)] [10.1088/2041-8205/808/2/L40]

    Gerakines, P. A., and R. L. Hudson. 2015. "Infrared spectra and optical constants of elusive amorphous methane." Astrophysical Journal Letters, 805 (2): L20 [Full Text (Link)] [10.1088/2041-8205/805/2/L20]

    Hudson, R. L., P. A. Gerakines, and M. J. Loeffler. 2015. "Activation of weak IR fundamentals of two species of astrochemical interest in the Td point group – the importance of amorphous ices." Physical Chemistry Chemical Physics, 17 (19): 12545-12552 [Full Text (Link)] [10.1039/C5CP00975H]

    Gerakines, P. A., and R. L. Hudson. 2015. "The radiation stability of glycine in solid CO2 – In situ laboratory measurements with applications to Mars." Icarus, 252: 466-472 [Full Text (Link)] [10.1016/j.icarus.2015.02.008]

    Loeffler, M. J., and R. L. Hudson. 2015. "Descent without Modification? The Thermal Chemistry of H2O2 on Europa and Other Icy Worlds." Astrobiology, 15: 453-461 [10.1089/ast.2014.1195]

    Loeffler, M. J., R. L. Hudson, N. Chanover, and A. A. Simon. 2015. "Giant-Planet Chemistry: Ammonium Hydrosulfide (NH4SH), its IR Spectra and Thermal and Radiolytic Stabilities." Icarus, 258: 181–191 [10.1016/j.icarus.2015.06.015]

    Hudson, R. L., P. A. Gerakines, and M. H. Moore. 2014. "Infrared Spectra and Optical Constants of Astronomical Ices: II. Ethane and Ethylene." Icarus, 243: 147-148 [10.1016/j.icarus.2014.09.001]

    Hudson, R. L., R. F. Ferrante, and M. H. Moore. 2014. "Infrared Spectra and Optical Constants of Astronomical Ices: I. Amorphous and Crystalline Acetylene." Icarus, 228: 276-287 [10.1016/j.icarus.2013.08.029]

    Callahan, M. P., P. A. Gerakines, M. G. Martin, Z. Peeters, and R. L. Hudson. 2013. "Irradiated benzene ice provides clues to meteoritic organic chemistry." Icarus, 226 (2): 1201-1209 [Full Text (Link)] [10.1016/j.icarus.2013.07.033]

    Hudson, R. L., and M. J. Loeffler. 2013. "Ketene Formation in Interstellar Ices: A Laboratory Study." The Astrophysical Journal, 773: 773-782.

    Loeffler, M. J., and R. L. Hudson. 2013. "Low-temperature Thermal Reactions between SO2 and H2O2 and their Relevance to the Jovian Icy Satellites." Icarus, 224: 257-259 [10.1016/j.icarus.2013.02.005]

    Gerakines, P. A., and R. L. Hudson. 2013. "Glycine's Radiolytic Destruction in Ices: First in situ Laboratory Measurements for Mars." Astrobiology, 13: 647-655 [10.1089/ast.2012.0943]

    Gerakines, P. A., R. L. Hudson, M. H. Moore, and J.-L. Bell. 2012. "In-situ Measurements of the Radiation Stability of Amino Acids at 15 - 140 K." Icarus, 220: 647-659 [10.1016/j.icarus.2012.06.001]

    Knez, C., M. H. Moore, R. F. Ferrante, and R. L. Hudson. 2012. "Laboratory IR Studies and Astrophysical Implications of C2H2-Containing Binary Ices." The Astrophysical Journal, 748: 95 [10.1088/0004-637X/748/2/95]

    Loeffler, M. J., and R. L. Hudson. 2012. "Thermal Regeneration of Sulfuric Acid Hydrates after Irradiation." Icarus, 219: 561-566 [10.1016/j.icarus.2012.03.023]

    Loeffler, M. J., R. L. Hudson, M. H. Moore, and R. W. Carlson. 2011. "Radiolysis of Sulfuric Acid, Sulfuric Acid Monohydrate, and Sulfuric Acid Tetrahydrate and its Relevance to Europa." Icarus, 215: 370-380 [10.1016/j.icarus.2011.06.008]

    Loeffler, M. J., and R. L. Hudson. 2010. "Thermally-Induced Chemistry and the Jovian Icy Satellites: A Laboratory Study of the Formation of Sulfur Oxyanions." Geophysical Research Letters, 37: 19201 [10.1029/2010GL044553]

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2010. "O-atom Production in Water Ice: Implications for O2 Formation on Icy Satellites." J. Geophys. Res., 115: E10013.

    Peeters, Z., R. L. Hudson, M. H. Moore, and A. Lewis. 2010. "The Formation and Stability of Carbonic Acid on Outer Solar System Bodies." Icarus, 210: 480-487.

    Moore, M. H., R. F. Ferrante, W. J. Moore, and R. L. Hudson. 2010. "Infrared Spectra and Optical Constants of Nitrile Ices Relevant to Titan's Atmosphere ." Astrophysical Journal - Supplement, 191: 96-112.

    Hudson, R. L., A. S. Lewis, M. H. Moore, J. P. Dworkin, and M. P. Martin. 2009. "Enigmatic Isovaline: Investigating the Stability, Racemization, and Formation of a Non-Biological Meteoritic Amino Acid." Astronomical Society of the Pacific Bioastronomy 2007: Molecules, Microbes, and Extraterrestrial Life, ISBN: 978-1-58381-720-9. [Full Text (Link)]

    Carlson, R. W., W. M. Calvin, J. B. Dalton, et al. G. B. Hansen, R. L. Hudson, R. E. Johnson, T. B. McCord, and M. H. Moore. 2009. "Europa Europa's Surface Composition." University of Arizona Press, Europa: ISBN: ISBN-10: 0816528446; ISBN-13: 978-0816528448.

    Hudson, R. L., M. H. Moore, and L. L. Raines. 2009. "Ethane Ices in the Outer Solar System: Spectroscopy and Chemistry." Icarus, 203: 677-680.

    Hudson, R. L., M. E. Palumbo, G. Strazzulla, et al. M. H. Moore, J. Cooper, and S. J. Sturmer. 2008. "Laboratory Studies of the Chemistry of TNO Surface Materials." The Solar System Beyond Neptune, ISBN: ISBN-10: 0816527555; ISBN-13: 978-0816527557.

    Hudson, R. L., M. H. Moore, J. P. Dworkin, M. G. Martin, and Z. D. Pozun. 2008. "Amino Acids from Ion-Irradiated Nitrile-Containing Ices." Astrobiology, 8: 771-779 [Full Text (Link)] [10.1089/ast.2007.0131]

    Ferrante, R. F., M. H. Moore, M. M. Spiliotis, and R. L. Hudson. 2008. "Formation of Interstellar OCS: Radiation Chemistry and IR Spectra of Precursor Ices." Astrophysical Journal, 684: 1210-1220.

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2008. "Radiation Chemistry of H2O + O2 Ices." Icarus, 194: 379-388 [10.1016/j.icarus.2007.10.002]

    Moore, M. H., R. F. Ferrante, R. L. Hudson, and J. N. Stone. 2007. "Ammonia - Water Ice Laboratory Studies Relevant to Outer Solar System Surfaces." Icarus, 190: 260-273 [10.1016/j.icarus.2007.02.020]

    Moore, M. H., R. L. Hudson, and R. W. Carlson. 2007. "The Radiolysis of SO2 and H2S in Water Ice: Implications for the Icy Jovian Satellites." Icarus, 189: 409-423 [10.1016/j.icarus.2007.01.018]

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2006. "Infrared Detection of HO2 and HO3 Radicals in Water Ice." J. Phys. Chem. A, 110: 7985-7988 [10.1021/jp062765k]

    Hudson, R. L., and M. H. Moore. 2006. "Infrared Spectra and Radiation Stability of H2O2 Ices Relevant to Europa." Astrobiology, 6: 483-489.

    Hudson, R. L. 2006. "Astrochemistry Examples in the Classroom." Journal of Chemical Education, 83: 1611-1615.

    Moore, M. H., and R. L. Hudson. 2006. "Production of Complex Molecules in Astrophysical Ices." Astrochemistry: Recent Successes and Current Challenges, 231 (Proceedings IAU Sym.): 247-260.

    Hudson, R. L., R. K. Khanna, and M. H. Moore. 2005. "Laboratory Evidence for Solid-Phase Protonation of HNCO in Interstellar Ices." Astrophysical Journal - Supplement Series, 159: 277-281.

    Hudson, R. L., M. H. Moore, and A. M. Cook. 2005. "IR Characterization and Radiation Chemistry of Glycolaldehyde and Ethylene Glycol Ices." Advances in Space Research, 36: 184-189.

    Ruiterkamp, R., Z. Peeters, M. H. Moore, R. L. Hudson, and P. Ehrenfreund. 2005. "A Quantitative Study of Proton Irradiation and UV Photolysis of Benzene in Interstellar Environments." Astronomy & Astrophysics, 440: 391-402.

    Colangeli, L., J. R. Brucato, A. Bar-Nun, R. L. Hudson, and M. H. Moore. 2005. "Laboratory Experiments on Cometary Materials." Comets II, Main Library Building, 5th Floor 1510 E. University Blvd. P.O. Box 210055 Tucson, AZ 85721-0055 : 695-717, ISBN: 978-0-8165-2450-1.

    Hudson, R. L., and M. H. Moore. 2004. "Reactions of Nitriles in Ices Relevant to Titan, Comets, and the Interstellar Medium: Formation of Cyanate Ion, Ketenimines, and Isonitriles." Icarus, 172: 466-478 [10.1016/j.icarus.2004.06.011]

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2004. "Ultraviolet Photolysis and Proton Irradiation of Astrophysical Ice Analogs Containing Hydrogen Cyanide." Icarus, 170: 202-213.

    Moore, M. H., R. L. Hudson, and R. F. Ferrante. 2003. "Radiation Products in Processed Ices Relevant to Edgeworth-Kuiper-Belt Objects." Earth, Moon, and Planets, 92: 291-306.

    Hudson, R. L., and M. H. Moore. 2003. "Solid-Phase Formation of Interstellar Vinyl Alcohol." Astrophysical Journal, 586: L107-L110.

    Moore, M. H., and R. L. Hudson. 2003. "Infrared Study of Ion-Irradiated N2-Dominated Ices Relevant to Triton and Pluto: Formation of HCN and HNC." Icarus, 161: 486-500 [10.1016/S0019-1035(02)00037-4]

    Hudson, R. L., and M. H. Moore. 2002. "The N3 Radical as a Discriminator Between Ion-Irradiated and UV-Photolyzed Astronomical Ices." Astrophysical Journal, 568: 1095-1099.

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2001. "Energetic Processing of Laboratory Ice Analogs: UV Photolysis vs. Ion Bombardment." JGR-Planets, 106: 33381-33386.

    Hudson, R. L., M. H. Moore, and P. A. Gerakines. 2001. "Radiation Chemical Alterations in Solar System Ices: An Overview." JGR-Planets, 106: 33275-33284.

    Moore, M. H., R. L. Hudson, and P. A. Gerakines. 2001. "Mid- and Far-Infrared Spectroscopic Studies of the Influence of Temperature, Ultraviolet Photolysis, and Ion Irradiation on Cosmic-Type Ices." Spectrochimica Acta A , 57: 843-858.

    Hudson, R. L., M. H. Moore, and P. A. Gerakines. 2001. "The Formation of Cyanate Ion (OCN-) in Interstellar Ice Analogs." The Astrophysical Journal, 550: 1140-1150.

    Hudson, R. L., and M. H. Moore. 2000. "New Experiments and Interpretations Concerning the OCN- Band in Interstellar Ice Analogues." Astronomy & Astrophy, 357: 787-792.

    Hudson, R. L., and M. H. Moore. 2000. "IR Spectra of Irradiated Cometary Ice Analogues Containing Methanol: A New Assignment, a Reassignment, and a Non-Assignment." Icarus, 145: 661-663.

    Moore, M. H., and R. L. Hudson. 2000. "IR Detection of H2O2 at 80 K in Ion-Irradiated Laboratory Ices Relevant to Europa." Icarus, 145: 282-288.

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2000. "Carbonic Acid Production in H2O:CO2 ices UV Photolysis vs Proton Bombardment." Astronomy & Astrophysics, 357: 793-800.

    Hudson, R. L., and M. H. Moore. 1999. "Laboratory Studies of the Formation of Methanol and Other Organic Molecules by Water + Carbon Monoxide Radiolysis: Relevance to Comets, Icy Satellites, and Interstellar Ices." Icarus, 140: 451-461.

    Moore, M. H., and R. L. Hudson. 1998. "Infrared Study of Ion Irradiated Water Ice Mixtures with Organics Relevant to Comets." Icarus, 135: 518-527.

    Hudson, R. L. 1997. "Hydrocarbon Radiation Chemistry in Ices of Cometary Relevance." Icarus, 126: 233-235.

    Hudson, R. L., and M. H. Moore. 1995. "Far-IR Spectral Changes Accompanying Proton Irradiation of Solids of Astrochemical Interest." Radiation Physics and Chemistry, 45: 779-789.

    Moore, M. H., and R. L. Hudson. 1994. "Far-Infrared Spectra of Cosmic-Type Pure and Mixed Ices." Astronomy & Astrophysics Supplement Series, 103: 45-56.

    Moore, M. H., R. F. Ferrante, R. L. Hudson, J. A. Nuth, and B. Donn. 1994. "Infrared Spectra of Crystalline Phase Ices Condensed on Silicate Smokes at T<20K." ApJ Letters, 428: L81-L84 [Full Text (Link)]

    Hudson, R. L., and M. H. Moore. 1993. "Far-Infrared Investigations of a Methanol Clathrate Hydrate: Implications for Astronomical Observations." Astrophysical Journal Letters, 404: L29-L32.

    Moore, M. H., and R. L. Hudson. 1992. "Far-Infrared Spectral Studies of Phase Changes in Water Ice Induced by Proton Irradiation." Astrophysical Journal, 401: 353-360.

    Hudson, R. L., and M. H. Moore. 1992. "A Far-IR Study of Irradiated Amorphous Ice: An Unreported Oscillation Between Amorphous and Crystalline Phases." Journal of Physical Chemistry, 96: 6500-6504.

    Hudson, R. L., and B. Donn. 1992. "Comments on 'Gas Release from Comets' and Related Trapped-Gas Experiments." Icarus, 96: 286-288.

    Hudson, R. L., and B. Donn. 1991. "An Experimental Study of the Sublimation of Water Ice and the Release of Trapped Gases." Icarus, 94: 326-332.

    Hudson, R. L., V. P. Osburn, and R. Brashear. 1990. "A eutectic mixture with medicinal applications." Journal of Chemical Education, 67 (2): 156 [10.1021/ed067p156.1]

    Hudson, R. L., and B. D. Pendley. 1988. "An integrated laboratory project in NMR spectroscopy." Journal of Chemical Education, 65 (12): 1107 [10.1021/ed065p1107]

    Moore, M. H., B. Donn, and R. L. Hudson. 1988. "Study of S2 in Ices: Implications for Comets." Icarus, 74: 399-412.

    Hudson, R. L. 1987. "Thermochemistry, dilithium crystals, and Star Trek." Journal of Chemical Education, 64 (12): 1039 [10.1021/ed064p1039]

    Green, I. G., R. L. Hudson, and B. P. Roberts. 1987. "Homolytic reactions of ligated boranes. Part 7. An electron spin resonance study of the t-butyl isocyanide–boryl radical." J. Chem. Soc., Perkin Trans. 2, (12): 1773-1779 [10.1039/p29870001773]

    Hudson, R. L., and B. P. Roberts. 1986. "The bis(trimethylamine)—alanyl radical, (Me3N)2ÅlH2." J. Chem. Soc., Chem. Commun., (15): 1194-1195 [10.1039/c39860001194]

    Hudson, R. L. 1982. "Toy flying saucers and molecular speeds." Journal of Chemical Education, 59 (12): 1025 [10.1021/ed059p1025]

    Hasegawa, A., R. L. Hudson, O. Kikuchi, K. Nishikida, and F. Williams. 1981. "The F3NO- radical anion. ESR spectra, structure, and its dissociation to F2NO." Journal of the American Chemical Society, 103 (12): 3436-3440 [10.1021/ja00402a030]

    Hudson, R. L., and F. Williams. 1981. "ESR study of dialkyl carbonate radical anions and their thermal and photochemical dissociation in the solid state." The Journal of Physical Chemistry, 85 (5): 510-517 [10.1021/j150605a012]

    Hudson, R. L., and F. Williams. 1980. "Reanalysis of the ESR spectrum of the triethylarsine dimer radical cation (Et3As-AsEt3+)." The Journal of Physical Chemistry, 84 (25): 3483-3485 [10.1021/j100462a035]

    Hudson, R. L., and F. Williams. 1979. "The radical anion of trimethyl phosphite." Journal of the Chemical Society, Chemical Communications, (24): 1125 [10.1039/c39790001125]

    Hudson, R. L., and F. Williams. 1978. "An electron spin resonance study of the photolysis of trapped radicals in .gamma.-irradiated carboxylic esters at 77-87 K." The Journal of Physical Chemistry, 82 (8): 967-969 [10.1021/j100497a025]

    Hudson, R. L., and F. Williams. 1977. "Electron spin resonance spectrum of trimethyl borate ([(MeO)3B . B(OMe)3]-). A novel .sigma. radical with a one-electron bond." Journal of the American Chemical Society, 99 (23): 7714-7716 [10.1021/ja00465a056]

    Hudson, R. L., M. Shiotani, and F. Williams. 1977. "Hydrogen atom abstraction by methyl radicals in methanol glasses at 15–100 K: evidence for a limiting rate constant below 40 K by quantum-mechanical tunneling." Chemical Physics Letters, 48 (1): 193-196 [10.1016/0009-2614(77)80248-0]

    Hudson, R. L., and F. Williams. 1976. "The ESR spectrum and structure of BF−3." The Journal of Chemical Physics, 65 (8): 3381-3382 [10.1063/1.433472]

    Brief Bio

    Reggie Hudson is a research scientist working at the NASA Goddard Space Flight Center.  To learn more about him, his work, and his colleagues, visit the web pages of the Cosmic Ice Laboratory.

    Selected Publications

    Refereed

    Hudson, R. L., Y. Y. Yarnall, and F. M. Coleman. 2020. "Infrared band strengths and other properties of amorphous and crystalline dimethyl ether." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 233 118217 [10.1016/j.saa.2020.118217]

    Hudson, R. L., and R. F. Ferrante. 2020. "Mid-infrared spectra of dipropargyl ether ices revisited." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 233 118206 [10.1016/j.saa.2020.118206]

    Materese, C. K., P. A. Gerakines, and R. L. Hudson. 2020. "The Radiation Stability of Thymine in Solid H2O." Astrobiology 20 (10): ast.2019.2199 [10.1089/ast.2019.2199]

    Yarnall, Y. Y., P. A. Gerakines, and R. L. Hudson. 2020. "Propanal, an interstellar aldehyde - first infrared band strengths and other properties of the amorphous and crystalline forms." Monthly Notices of the Royal Astronomical Society 494 (4): 4606–4615 [10.1093/mnras/staa1028]

    Hudson, R. L. 2020. "Preparation, identification, and low-temperature infrared spectra of two elusive crystalline nitrile ices." Icarus 338 113548 [10.1016/j.icarus.2019.113548]

    Hudson, R. L., M. J. Loeffler, R. F. Ferrante, P. A. Gerakines, and F. M. Coleman. 2020. "Testing Densities and Refractive Indices of Extraterrestrial Ice Components Using Molecular Structures—Organic Compounds and Molar Refractions." The Astrophysical Journal 891 (1): 22 [10.3847/1538-4357/ab6efa]

    Hudson, R. L., and R. F. Ferrante. 2020. "Quantifying acetaldehyde in astronomical ices and laboratory analogues: IR spectra, intensities, 13C shifts, and radiation chemistry." Monthly Notices of the Royal Astronomical Society [10.1093/mnras/stz3323]

    Hudson, R. L., and F. M. Coleman. 2019. "Solid-State Isomerization and Infrared Band Strengths of Two Conformational Isomers of Cyclopropanecarboxaldehyde, a Candidate Interstellar Molecule." ACS Earth and Space Chemistry 3 (7): 1182-1188 [10.1021/acsearthspacechem.9b00058]

    Hudson, R. L., and F. M. Coleman. 2019. "Infrared intensities and molar refraction of amorphous dimethyl carbonate – comparisons to four interstellar molecules." Physical Chemistry Chemical Physics 21 (21): 11284-11289 [10.1039/c9cp01709g]

    Hudson, R. L., and P. A. Gerakines. 2019. "Molecular identifications in experiments with astronomical ice analogues: new data, old strategies, and the N2 + acetone system." Monthly Notices of the Royal Astronomical Society 485 (1): 861-871 [10.1093/mnras/stz254]

    Hudson, R. L., and P. A. Gerakines. 2019. "Propynal, an interstellar molecule with an exceptionally strong C≡C infrared band – laboratory infrared data and applications." Monthly Notices of the Royal Astronomical Society 482 (3): 4009-4017 [10.1093/mnras/sty2821]

    Hudson, R. L., and E. F. Mullikin. 2019. "Infrared band strengths for amorphous and crystalline methyl propionate, a candidate interstellar molecule." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 207 216-221 [10.1016/j.saa.2018.09.032]

    Hudson, R. L., and P. A. Gerakines. 2018. "Infrared Spectra and Interstellar Sulfur: New Laboratory Results for H2S and Four Malodorous Thiol Ices." The Astrophysical Journal 867 (2): 138 [10.3847/1538-4357/aae52a]

    Hudson, R. L., and M. H. Moore. 2018. "Interstellar Ices and Radiation-induced Oxidations of Alcohols." The Astrophysical Journal 857 (2): 89 [10.3847/1538-4357/aab708]

    Hudson, R. L., P. A. Gerakines, and R. F. Ferrante. 2018. "IR spectra and properties of solid acetone, an interstellar and cometary molecule." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 193 33-39 [10.1016/j.saa.2017.11.055]

    Loeffler, M. J., and R. L. Hudson. 2018. "Coloring Jupiter's clouds: Radiolysis of ammonium hydrosulfide (NH 4 SH)." Icarus 302 418-425 [10.1016/j.icarus.2017.10.041]

    Hudson, R. L. 2018. "Radiation chemistry of solid acetone in the interstellar medium – a new dimension to an old problem." Physical Chemistry Chemical Physics 20 (8): 5389-5398 [10.1039/c7cp06431d]

    Hudson, R. L., M. J. Loeffler, and K. M. Yocum. 2017. "Laboratory Investigations into the Spectra and Origin of Propylene Oxide: A Chiral Interstellar Molecule." The Astrophysical Journal 835 (2): 225 [10.3847/1538-4357/835/2/225]

    Hudson, R. L., M. J. Loeffler, and P. A. Gerakines. 2017. "Infrared spectra and band strengths of amorphous and crystalline N2O." The Journal of Chemical Physics 146 (2): 024304 [10.1063/1.4973548]

    Loeffler, M. J., and R. L. Hudson. 2016. "What is Eating Ozone? Thermal Reactions between SO2 and O3: Implications for Icy Environments." The Astrophysical Journal 833 (1): L9 [10.3847/2041-8213/833/1/l9]

    Loeffler, M. J., R. L. Hudson, N. J. Chanover, and A. A. Simon. 2016. "The Spectrum of Jupiter's Great Red Spot: The Case for Ammonium Hydrosulfide (NH4SH)." Icarus 271 265-268 [10.1016/j.icarus.2016.02.010]

    Hudson, R. L. 2016. "Infrared Spectra and Band Strengths of CH3SH, an Interstellar Molecule." Phys. Chem. Chem. Phys. 18 (36): 25756-25763 [10.1039/c6cp01475e]

    Gerakines, P. A., and R. L. Hudson. 2015. "First infrared band strengths for amorphous CO2, an overlooked component of interstellar ices." The Astrophysical Journal Letters 808 (2): L40 [Full Text (Link)] [10.1088/2041-8205/808/2/L40]

    Gerakines, P. A., and R. L. Hudson. 2015. "Infrared spectra and optical constants of elusive amorphous methane." Astrophysical Journal Letters 805 (2): L20 [Full Text (Link)] [10.1088/2041-8205/805/2/L20]

    Hudson, R. L., P. A. Gerakines, and M. J. Loeffler. 2015. "Activation of weak IR fundamentals of two species of astrochemical interest in the Td point group – the importance of amorphous ices." Physical Chemistry Chemical Physics 17 (19): 12545-12552 [Full Text (Link)] [10.1039/C5CP00975H]

    Gerakines, P. A., and R. L. Hudson. 2015. "The radiation stability of glycine in solid CO2 – In situ laboratory measurements with applications to Mars." Icarus 252 466-472 [Full Text (Link)] [10.1016/j.icarus.2015.02.008]

    Loeffler, M. J., and R. L. Hudson. 2015. "Descent without Modification? The Thermal Chemistry of H2O2 on Europa and Other Icy Worlds." Astrobiology 15 453-461 [10.1089/ast.2014.1195]

    Loeffler, M. J., R. L. Hudson, N. Chanover, and A. A. Simon. 2015. "Giant-Planet Chemistry: Ammonium Hydrosulfide (NH4SH), its IR Spectra and Thermal and Radiolytic Stabilities." Icarus 258 181–191 [10.1016/j.icarus.2015.06.015]

    Hudson, R. L., P. A. Gerakines, and M. H. Moore. 2014. "Infrared Spectra and Optical Constants of Astronomical Ices: II. Ethane and Ethylene." Icarus 243 147-148 [10.1016/j.icarus.2014.09.001]

    Hudson, R. L., R. F. Ferrante, and M. H. Moore. 2014. "Infrared Spectra and Optical Constants of Astronomical Ices: I. Amorphous and Crystalline Acetylene." Icarus 228 276-287 [10.1016/j.icarus.2013.08.029]

    Callahan, M. P., P. A. Gerakines, M. G. Martin, Z. Peeters, and R. L. Hudson. 2013. "Irradiated benzene ice provides clues to meteoritic organic chemistry." Icarus 226 (2): 1201-1209 [Full Text (Link)] [10.1016/j.icarus.2013.07.033]

    Hudson, R. L., and M. J. Loeffler. 2013. "Ketene Formation in Interstellar Ices: A Laboratory Study." The Astrophysical Journal 773 773-782

    Loeffler, M. J., and R. L. Hudson. 2013. "Low-temperature Thermal Reactions between SO2 and H2O2 and their Relevance to the Jovian Icy Satellites." Icarus 224 257-259 [10.1016/j.icarus.2013.02.005]

    Gerakines, P. A., and R. L. Hudson. 2013. "Glycine's Radiolytic Destruction in Ices: First in situ Laboratory Measurements for Mars." Astrobiology 13 647-655 [10.1089/ast.2012.0943]

    Gerakines, P. A., R. L. Hudson, M. H. Moore, and J.-L. Bell. 2012. "In-situ Measurements of the Radiation Stability of Amino Acids at 15 - 140 K." Icarus 220 647-659 [10.1016/j.icarus.2012.06.001]

    Knez, C., M. H. Moore, R. F. Ferrante, and R. L. Hudson. 2012. "Laboratory IR Studies and Astrophysical Implications of C2H2-Containing Binary Ices." The Astrophysical Journal 748 95 [10.1088/0004-637X/748/2/95]

    Loeffler, M. J., and R. L. Hudson. 2012. "Thermal Regeneration of Sulfuric Acid Hydrates after Irradiation." Icarus 219 561-566 [10.1016/j.icarus.2012.03.023]

    Loeffler, M. J., R. L. Hudson, M. H. Moore, and R. W. Carlson. 2011. "Radiolysis of Sulfuric Acid, Sulfuric Acid Monohydrate, and Sulfuric Acid Tetrahydrate and its Relevance to Europa." Icarus 215 370-380 [10.1016/j.icarus.2011.06.008]

    Loeffler, M. J., and R. L. Hudson. 2010. "Thermally-Induced Chemistry and the Jovian Icy Satellites: A Laboratory Study of the Formation of Sulfur Oxyanions." Geophysical Research Letters 37 19201 [10.1029/2010GL044553]

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2010. "O-atom Production in Water Ice: Implications for O2 Formation on Icy Satellites." J. Geophys. Res. 115 E10013

    Peeters, Z., R. L. Hudson, M. H. Moore, and A. Lewis. 2010. "The Formation and Stability of Carbonic Acid on Outer Solar System Bodies." Icarus 210 480-487

    Moore, M. H., R. F. Ferrante, W. J. Moore, and R. L. Hudson. 2010. "Infrared Spectra and Optical Constants of Nitrile Ices Relevant to Titan's Atmosphere ." Astrophysical Journal - Supplement 191 96-112

    Hudson, R. L., A. S. Lewis, M. H. Moore, J. P. Dworkin, and M. P. Martin. 2009. "Enigmatic Isovaline: Investigating the Stability, Racemization, and Formation of a Non-Biological Meteoritic Amino Acid." Astronomical Society of the Pacific Bioastronomy 2007: Molecules, Microbes, and Extraterrestrial Life [Full Text (Link)]

    Carlson, R. W., W. M. Calvin, J. B. Dalton, et al. G. B. Hansen, R. L. Hudson, R. E. Johnson, T. B. McCord, and M. H. Moore. 2009. "Europa Europa's Surface Composition." University of Arizona Press Europa

    Hudson, R. L., M. H. Moore, and L. L. Raines. 2009. "Ethane Ices in the Outer Solar System: Spectroscopy and Chemistry." Icarus 203 677-680

    Hudson, R. L., M. E. Palumbo, G. Strazzulla, et al. M. H. Moore, J. Cooper, and S. J. Sturmer. 2008. "Laboratory Studies of the Chemistry of TNO Surface Materials." The Solar System Beyond Neptune

    Hudson, R. L., M. H. Moore, J. P. Dworkin, M. G. Martin, and Z. D. Pozun. 2008. "Amino Acids from Ion-Irradiated Nitrile-Containing Ices." Astrobiology 8 771-779 [Full Text (Link)] [10.1089/ast.2007.0131]

    Ferrante, R. F., M. H. Moore, M. M. Spiliotis, and R. L. Hudson. 2008. "Formation of Interstellar OCS: Radiation Chemistry and IR Spectra of Precursor Ices." Astrophysical Journal 684 1210-1220

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2008. "Radiation Chemistry of H2O + O2 Ices." Icarus 194 379-388 [10.1016/j.icarus.2007.10.002]

    Moore, M. H., R. F. Ferrante, R. L. Hudson, and J. N. Stone. 2007. "Ammonia - Water Ice Laboratory Studies Relevant to Outer Solar System Surfaces." Icarus 190 260-273 [10.1016/j.icarus.2007.02.020]

    Moore, M. H., R. L. Hudson, and R. W. Carlson. 2007. "The Radiolysis of SO2 and H2S in Water Ice: Implications for the Icy Jovian Satellites." Icarus 189 409-423 [10.1016/j.icarus.2007.01.018]

    Cooper, P. D., M. H. Moore, and R. L. Hudson. 2006. "Infrared Detection of HO2 and HO3 Radicals in Water Ice." J. Phys. Chem. A 110 7985-7988 [10.1021/jp062765k]

    Hudson, R. L., and M. H. Moore. 2006. "Infrared Spectra and Radiation Stability of H2O2 Ices Relevant to Europa." Astrobiology 6 483-489

    Hudson, R. L. 2006. "Astrochemistry Examples in the Classroom." Journal of Chemical Education 83 1611-1615

    Moore, M. H., and R. L. Hudson. 2006. "Production of Complex Molecules in Astrophysical Ices." Astrochemistry: Recent Successes and Current Challenges 231 (Proceedings IAU Sym.): 247-260

    Hudson, R. L., R. K. Khanna, and M. H. Moore. 2005. "Laboratory Evidence for Solid-Phase Protonation of HNCO in Interstellar Ices." Astrophysical Journal - Supplement Series 159 277-281

    Hudson, R. L., M. H. Moore, and A. M. Cook. 2005. "IR Characterization and Radiation Chemistry of Glycolaldehyde and Ethylene Glycol Ices." Advances in Space Research 36 184-189

    Ruiterkamp, R., Z. Peeters, M. H. Moore, R. L. Hudson, and P. Ehrenfreund. 2005. "A Quantitative Study of Proton Irradiation and UV Photolysis of Benzene in Interstellar Environments." Astronomy & Astrophysics 440 391-402

    Colangeli, L., J. R. Brucato, A. Bar-Nun, R. L. Hudson, and M. H. Moore. 2005. "Laboratory Experiments on Cometary Materials." Comets II 695-717

    Hudson, R. L., and M. H. Moore. 2004. "Reactions of Nitriles in Ices Relevant to Titan, Comets, and the Interstellar Medium: Formation of Cyanate Ion, Ketenimines, and Isonitriles." Icarus 172 466-478 [10.1016/j.icarus.2004.06.011]

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2004. "Ultraviolet Photolysis and Proton Irradiation of Astrophysical Ice Analogs Containing Hydrogen Cyanide." Icarus 170 202-213

    Moore, M. H., R. L. Hudson, and R. F. Ferrante. 2003. "Radiation Products in Processed Ices Relevant to Edgeworth-Kuiper-Belt Objects." Earth, Moon, and Planets 92 291-306

    Hudson, R. L., and M. H. Moore. 2003. "Solid-Phase Formation of Interstellar Vinyl Alcohol." Astrophysical Journal 586 L107-L110

    Moore, M. H., and R. L. Hudson. 2003. "Infrared Study of Ion-Irradiated N2-Dominated Ices Relevant to Triton and Pluto: Formation of HCN and HNC." Icarus 161 486-500 [10.1016/S0019-1035(02)00037-4]

    Hudson, R. L., and M. H. Moore. 2002. "The N3 Radical as a Discriminator Between Ion-Irradiated and UV-Photolyzed Astronomical Ices." Astrophysical Journal 568 1095-1099

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2001. "Energetic Processing of Laboratory Ice Analogs: UV Photolysis vs. Ion Bombardment." JGR-Planets 106 33381-33386

    Hudson, R. L., M. H. Moore, and P. A. Gerakines. 2001. "Radiation Chemical Alterations in Solar System Ices: An Overview." JGR-Planets 106 33275-33284

    Moore, M. H., R. L. Hudson, and P. A. Gerakines. 2001. "Mid- and Far-Infrared Spectroscopic Studies of the Influence of Temperature, Ultraviolet Photolysis, and Ion Irradiation on Cosmic-Type Ices." Spectrochimica Acta A 57 843-858

    Hudson, R. L., M. H. Moore, and P. A. Gerakines. 2001. "The Formation of Cyanate Ion (OCN-) in Interstellar Ice Analogs." The Astrophysical Journal 550 1140-1150

    Hudson, R. L., and M. H. Moore. 2000. "New Experiments and Interpretations Concerning the OCN- Band in Interstellar Ice Analogues." Astronomy & Astrophy 357 787-792

    Hudson, R. L., and M. H. Moore. 2000. "IR Spectra of Irradiated Cometary Ice Analogues Containing Methanol: A New Assignment, a Reassignment, and a Non-Assignment." Icarus 145 661-663

    Moore, M. H., and R. L. Hudson. 2000. "IR Detection of H2O2 at 80 K in Ion-Irradiated Laboratory Ices Relevant to Europa." Icarus 145 282-288

    Gerakines, P. A., M. H. Moore, and R. L. Hudson. 2000. "Carbonic Acid Production in H2O:CO2 ices UV Photolysis vs Proton Bombardment." Astronomy & Astrophysics 357 793-800

    Hudson, R. L., and M. H. Moore. 1999. "Laboratory Studies of the Formation of Methanol and Other Organic Molecules by Water + Carbon Monoxide Radiolysis: Relevance to Comets, Icy Satellites, and Interstellar Ices." Icarus 140 451-461

    Moore, M. H., and R. L. Hudson. 1998. "Infrared Study of Ion Irradiated Water Ice Mixtures with Organics Relevant to Comets." Icarus 135 518-527

    Hudson, R. L. 1997. "Hydrocarbon Radiation Chemistry in Ices of Cometary Relevance." Icarus 126 233-235

    Hudson, R. L., and M. H. Moore. 1995. "Far-IR Spectral Changes Accompanying Proton Irradiation of Solids of Astrochemical Interest." Radiation Physics and Chemistry 45 779-789

    Moore, M. H., and R. L. Hudson. 1994. "Far-Infrared Spectra of Cosmic-Type Pure and Mixed Ices." Astronomy & Astrophysics Supplement Series 103 45-56

    Moore, M. H., R. F. Ferrante, R. L. Hudson, J. A. Nuth, and B. Donn. 1994. "Infrared Spectra of Crystalline Phase Ices Condensed on Silicate Smokes at T<20K." ApJ Letters 428 L81-L84 [Full Text (Link)]

    Hudson, R. L., and M. H. Moore. 1993. "Far-Infrared Investigations of a Methanol Clathrate Hydrate: Implications for Astronomical Observations." Astrophysical Journal Letters 404 L29-L32

    Moore, M. H., and R. L. Hudson. 1992. "Far-Infrared Spectral Studies of Phase Changes in Water Ice Induced by Proton Irradiation." Astrophysical Journal 401 353-360

    Hudson, R. L., and M. H. Moore. 1992. "A Far-IR Study of Irradiated Amorphous Ice: An Unreported Oscillation Between Amorphous and Crystalline Phases." Journal of Physical Chemistry 96 6500-6504

    Hudson, R. L., and B. Donn. 1992. "Comments on 'Gas Release from Comets' and Related Trapped-Gas Experiments." Icarus 96 286-288

    Hudson, R. L., and B. Donn. 1991. "An Experimental Study of the Sublimation of Water Ice and the Release of Trapped Gases." Icarus 94 326-332

    Hudson, R. L., V. P. Osburn, and R. Brashear. 1990. "A eutectic mixture with medicinal applications." Journal of Chemical Education 67 (2): 156 [10.1021/ed067p156.1]

    Hudson, R. L., and B. D. Pendley. 1988. "An integrated laboratory project in NMR spectroscopy." Journal of Chemical Education 65 (12): 1107 [10.1021/ed065p1107]

    Moore, M. H., B. Donn, and R. L. Hudson. 1988. "Study of S2 in Ices: Implications for Comets." Icarus 74 399-412

    Hudson, R. L. 1987. "Thermochemistry, dilithium crystals, and Star Trek." Journal of Chemical Education 64 (12): 1039 [10.1021/ed064p1039]

    Green, I. G., R. L. Hudson, and B. P. Roberts. 1987. "Homolytic reactions of ligated boranes. Part 7. An electron spin resonance study of the t-butyl isocyanide–boryl radical." J. Chem. Soc., Perkin Trans. 2 1773-1779 [10.1039/p29870001773]

    Hudson, R. L., and B. P. Roberts. 1986. "The bis(trimethylamine)—alanyl radical, (Me3N)2ÅlH2." J. Chem. Soc., Chem. Commun. 1194-1195 [10.1039/c39860001194]

    Hudson, R. L. 1982. "Toy flying saucers and molecular speeds." Journal of Chemical Education 59 (12): 1025 [10.1021/ed059p1025]

    Hasegawa, A., R. L. Hudson, O. Kikuchi, K. Nishikida, and F. Williams. 1981. "The F3NO- radical anion. ESR spectra, structure, and its dissociation to F2NO." Journal of the American Chemical Society 103 (12): 3436-3440 [10.1021/ja00402a030]

    Hudson, R. L., and F. Williams. 1981. "ESR study of dialkyl carbonate radical anions and their thermal and photochemical dissociation in the solid state." The Journal of Physical Chemistry 85 (5): 510-517 [10.1021/j150605a012]

    Hudson, R. L., and F. Williams. 1980. "Reanalysis of the ESR spectrum of the triethylarsine dimer radical cation (Et3As-AsEt3+)." The Journal of Physical Chemistry 84 (25): 3483-3485 [10.1021/j100462a035]

    Hudson, R. L., and F. Williams. 1979. "The radical anion of trimethyl phosphite." Journal of the Chemical Society, Chemical Communications 1125 [10.1039/c39790001125]

    Hudson, R. L., and F. Williams. 1978. "An electron spin resonance study of the photolysis of trapped radicals in .gamma.-irradiated carboxylic esters at 77-87 K." The Journal of Physical Chemistry 82 (8): 967-969 [10.1021/j100497a025]

    Hudson, R. L., and F. Williams. 1977. "Electron spin resonance spectrum of trimethyl borate ([(MeO)3B . B(OMe)3]-). A novel .sigma. radical with a one-electron bond." Journal of the American Chemical Society 99 (23): 7714-7716 [10.1021/ja00465a056]

    Hudson, R. L., M. Shiotani, and F. Williams. 1977. "Hydrogen atom abstraction by methyl radicals in methanol glasses at 15–100 K: evidence for a limiting rate constant below 40 K by quantum-mechanical tunneling." Chemical Physics Letters 48 (1): 193-196 [10.1016/0009-2614(77)80248-0]

    Hudson, R. L., and F. Williams. 1976. "The ESR spectrum and structure of BF−3." The Journal of Chemical Physics 65 (8): 3381-3382 [10.1063/1.433472]

                                                                                                                                                                                            
    NASA Logo, National Aeronautics and Space Administration