The Cosmic Ice Laboratory - Interstellar Molecules

The Cosmic Ice Laboratory - Interstellar Molecules


"?" indicates an uncertain or controversial detection.
Molecules in blue have been identified in the ice phase as well as the gas phase.

Molecules with Two Atoms
H2
hydrogen
CO
carbon monoxide
CSi
carbon monosilicide
CP
carbon monophosphide
CS
carbon monosulfide
NO
nitric oxide
NS
nitric sulfide
SO
sulfur monoxide
HCl
hydrogen chloride
NaCl
sodium chloride
KCl
potassium chloride
AlCl
aluminum monochloride
AlF
aluminum monofluoride
PN
phosphorus mononitride
SiN
silicon mononitride
SiO
silicon monoxide
SiS
silicon monosulfide
NH
imidyl radical
OH
hydroxyl radical
C2
diatomic carbon
CN
cyanide radical
HF
hydrogen fluoride
FeO
iron monoxide
LiH
lithium hydride
CH
methylidyne
CH+ CO+ SO+
SH
mercapto radical
O2
oxygen
N2
nitrogen
CF+
carbon monofluoride cation
PO
phosphorus monoxide
AlO
aluminum monoxide

Molecules with Three Atoms
H2O
water
H2S
hydrogen sulfide
HCN
hydrogen cyanide
HNC
hydrogen isocyanide
CO2
carbon dioxide
SO2
sulfur dioxide
MgCN
magnesium cyanide
MgNC
magnesium isocyanide
NaCN
sodium cyanide
N2O
nitrous oxide
NH2
amidogen radical
OCS
carbonyl sulfide
CH2
methylene
HCO
formyl radical
C3
triatomic carbon
C2H
ethynyl radical
C2O
ketenylidene
C2S
thioxoethenylidene
AlNC
aluminum isocyanide
HNO
nitrosyl hydride
SiCN
silicon monocyanide
N2H+ SiNC
silicon isocyanide
c - SiC2
silicon dicarbide
HCO+
formyl cation
HOC+ HCS+ H3+
OCN-
solid-phase only
HCP
phosphaethyne
CCP  

Molecules with Four Atoms
NH3
ammonia
H2CO (?)
formaldehyde
H2CS
thioformaldehyde
C2H2
acetylene
HNCO
isocyanic acid
HNCS
thioisocyanic acid
H3O+
hydronium ion
SiC3
silicon tricarbide
C3S
tricarbonsulfide
H2CN
methylene amidogen
c - C3H
cyclopropynylidyne
l - C3H
propynlidyne
HCCN CH3
methyl radical
C2CN
cyanoethynyl radical
C3O
HCNH+ HOCO+
protonated CO2
C3N- HCNO
fulminic acid
HSCN H2O2
hydrogen peroxide

Molecules with Five Atoms
CH4
methane
SiH4
silane
CH2NH
methyleneimine
NH2CN
cyanamide
CH2CO
ketene
HCOOH (?)
formic acid
HCC-CN
cyanoacetylene
HCC-NC
isocyanoacetylene
c - C3H2
cyclopropenylidene
l - C3H2 CH2CN
cyanomethyl radical
H2COH+
protonated
formaldehyde
C4Si C5 HNCCC C4H
C4H- HC(O)CN
cyanoformaldehyde

Molecules with Six Atoms
CH3OH
methanol
CH3SH
methanethiol
C2H4
ethylene
H(CC)2H
diacetylene
CH3CN
methylcyanide
CH3NC
methylisocyanide
HC(O)NH2
formamide
HCC-C(O)H
propynal
HC3NH+
protonated
cyanoacetylene
HC4N
cyanopropenylidene
C5N C5H
H2CCCC
butatrienylidene
H2CCNH
keteneimine
C5N- c-H2C3O
cyclopropenone

Molecules with Seven Atoms
CH2CH(OH)
vinyl alcohol
c - C2H4O
ethylene oxide
HC(O)CH3
acetaldehyde
H3C-CC-H
methylacetylene
CH3NH2
methylamine
CH2CH(CN)
acrylonitrile
HCC-CC-CN
cyanobutadiyne
C6H
hexatriynyl
radical
C6H-
hexatriyne anion

Molecules with Eight Atoms
CH3COOH
acetic acid
HC(O)OCH3
methyl formate
HOCH2C(O)H
glycolaldehyde
H3C-CC-CN
cyanomethylacetylene
H2C6
hexapentaenylidene
H(CC)3H
triacetylene
H2C=CH-C(O)H
propenal
CH2CCHCN
cyanoallene
C7H
H2NCH2CN
aminoacetonitrile

Molecules with Nine Atoms
(CH3)2O
dimethyl ether
CH3CH2CN
ethylcyanide
CH3CH2OH
ethanol
CH3C4H
methylbutadiyne
HCC-CC-CC-CN
cyanohexatriyne
C8H
CH3C(O)NH2
acetamide
C8H- CH3CHCH2
propylene

Molecules with Ten Atoms
(CH3)2CO
acetone
HOCH2CH2OH
ethylene glycol
H3C-CH2-C(O)H
propanal
CH3(CC)2CN
methylcyanodiacetylene

Molecules with Eleven Atoms
HCC-CC-CC-CC-CN
cyanooctatetrayne
CH3C6H
methyltriacetylene
HC(O)OCH2CH3
ethyl formate

Molecules with Twelve Atoms
C6H6
benzene
CH3CH2CH2CN
n-propyl cyanide

Molecules with Thirteen Atoms
HCC-CC-CC-CC-CC-CN
cyanodecapentayne
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