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Titan Atmospheric Chemistry Studies

Table 3b: Sample Compounds by Molecular Weight

Volatiles Tholins
MW Prefix Name Structure C H N O To Th N F K E C P
14 methane CH4 1 4 * *
17 ammonia NH3 3 1 * *
18 water H2O 2 1 * *
26 ethyne CHCH 2 2 * * *
27 hydrogen cyanide HCN 1 1 1 * * * * * * * *
28 carbon monoxide CO 1 1 *
28 ethene CH2CH2 2 4 * * * *
28 nitrogen N2 2 *
30 ethane CH3CH3 2 6 * * * *
40 propadiene (allene) CH2CCH2 3 4 * *
40 propyne CHCCH3 3 4 * * *
41 acetonitrile CH3CN 2 3 1 * * * * * * * *
42 cyclopropane CH2CH2CH2 3 6 * *
42 propene CH2CHCH3 3 6 * * * * *
43 isocyanic acid HNCO 1 1 1 1 *
44 carbon dioxide CO2 1 2 * *
44 propane CH3CH2CH3 3 8 * * * *
45 formamide HCONH2 1 3 1 1 *
50 butadiyne CHCCCH 4 2 *
51 cyanoacetylene CHCCN 3 1 1 * *
52 cyanogen CNCN 2 2 * * * * *
52 1- buten-3-yne CH2CHCCH 4 4 * *
53 acrylonitrile CH2CHCN 3 3 1 * * * * * *
54 1,2- butadiene CH2CCHCH3 4 6 * #
54 1,3- butadiene CH2CHCHCH2 4 6 * * #
54 1- butyne CHCCH2CH3 4 6 * # #
54 2- butyne CH3CCCH3 4 6 * * #
55 propanenitrile CH3CH2CN 3 5 1 * * * * * *
56 1- butene CH2CHCH2CH3 4 8 * * * *
56 2- butene (E & Z) CH3CHCHCH3 4 8 * * * *
56 iso butene (CH3)2CCH2 4 8 * * #
56 cyclobutane (CH2)4 4 8 *
57 azetidine see structure 57a 3 7 1 *
58 n- butane CH3CH2CH2CH3 4 10 * * *
58 iso butane (CH3)2CHCH3 4 10 * * * * *
59 acetamide CH3CONH2 2 5 1 1 *
60 acetic acid CH3CO2H 2 4 2 *
65 2- butynenitrile CH3CCCN 4 3 1 *
65 3- butynenitrile CHCCH2CN 4 3 1
66 cyclopentadiene see structure 66a 5 6 ? # *
66 2- methylbut-1-en-3-yne see structure 66b 5 6 #
66 1- pente-3-yne CH2CHCCCH3 5 6 #
66 1- pentyn-3-ene CHCCHCHCH3 5 6 #
67 Z-2- butenenitrile CH3CHCHCN 4 5 1 * # # # *
67 E-2- butenenitrile CH3CHCHCN 4 5 1 * # # #
67 3- butenenitrile CH2CHCH2CN 4 5 1 * * * # *
67 iso butenenitrile see structure 67a 4 5 1 * * * # *
67 pyrrole see structure 67b 4 5 1 * * * *
68 cyclopentene see structure 68a 5 8 *
68 imidazole see structure 68b 3 4 2 *
68 3- methyl-1,2-butadiene CH2CC(CH3)2 5 8 #
68 2- methyl-1,3-butadiene see structure 68d 5 8 #
68 1,2- pentadiene CH2CCHCH2CH3 5 8 # *
68 1,3- pentadiene CH2CHCHCHCH3 5 8 #
68 1,4- pentadiene CH2CHCH2CHCH2 5 8 #
68 2,3- pentadiene CH3CHCCHCH3 5 8 # *
68 pentyne CHCCH2CH2CH3 5 8 *
69 butanenitrile CH3CH2CH2CN 4 7 1 * * * *
69 iso butanenitrile (CH3)2CHCN 4 7 1 * * * * * *
70 2- methyl-1-butene see structure 70a 5 10 *
70 2- methyl-2-butene (CH3)2CCHCH3 5 10 * *
70 3- methyl-1-butene CH2CHCH(CH3)2 5 10 *
70 1- pentene CH2CHCH2CH2CH3 5 10 * * *
70 2- pentene (Z & E) CH3CHCHCH2CH3 5 10 * * *
71 2,3- dimethylaziridine see structure 71a 4 9 1 *
72 butanone CH3COCH2CH3 4 8 1 *
72 2,2- dimethylpropane (neopentane) see structure 72b 5 12 * *
72 2- methylbutane (CH3)2CHCH2CH3 5 12 * * *
72 pentane CH3CH2CH2CH2CH3 5 12 * * *
76 dicyanoethyne NCCCCN 4 2 *
78 benzene see structure 78a 6 6 * * * * *
78 1,5- hexadien-3-yne CH2CHCCCHCH2 6 6 #
78 1,3- hexadien-5-yne CH2CHCHCHCCH 6 6 #
78 1,5- hexadiyne CHCCH2CH2CCH 6 6 #
78 2,4- hexadiyne CHCCCCH2CH3 6 6 #
79 2- cyano-1,3-butadiene see structure 79a 5 5 1 *
79 2,4- pentadienenitrile CH2CHCHCHCN 5 5 1 *
79 pyridine see structure 79c 5 5 1 * * *
80 1,3- cyclohexadiene see structure 80a 6 8 #
80 1,4- cyclohexadiene see structure 80b 6 8 #
80 1,3,5- hexatriene CH2CHCHCHCHCH2 6 8 #
80 3- hexen-1-yne CHCCHCHCH2CH3 6 8 #
80 1- hexen-3-yne CH2CHCCCH2CH3 6 8 #
80 2- hexen-4-yne CH3CHCHCCCH3 6 8 #
80 1- methylcyclopentadiene see structure 80g 6 8 #
80 5- methylcyclopentadiene see structure 80h 6 8 #
80 3- methylpent-2-en-4-yne see structure 80i 6 8 #
80 pyrazine see structure 80j 4 4 2 *
80 pyridazine see structure 80k 4 4 2 *
80 pyrimidine see structure 80l 4 4 2 *
81 E-2- pentenenitrile CH3CH2CHCHCN 5 7 1 * # # #
81 Z-2- pentenenitrile CH3CH2CHCHCN 5 7 1 * # # #
81 E-3- pentenenitrile CH3CHCHCH2CN 5 7 1 * #
81 4- pentenenitrile CH2CHCH2CH2CN 5 7 1 * #
81 2- cyano-1-butene see structure 81b 5 7 1 * # *
81 Z,E-2- methyl-2-butenenitrile see structure 81c 5 7 1 * #
81 2- methyl-3-butenenitrile see structure 81d 5 7 1 * #
81 3- methyl-3-butenenitrile see structure 81e 5 7 1 * #
81 ?- methylpyrrole see structure 81f 5 7 1 * #
81 sym- triazine see structure 81g 3 3 3 *
82 1,5- hexadiene CH2CH(CH2)2CHCH2 6 10 *
82 1,2,4,5- tetrazine see structure 82b 2 2 4 *
83 pentanenitrile CH3CH2CH2CH2CN 5 9 1 *
83 2,2- dimethylpropanenitrile (CH3)3CCN 5 9 1 *
83 2- cyanobutane see structure 83a 5 9 1
84 1- hexene CH2CH(CH2)3CH3 6 12 *
85 3- methylpyrrolidine see structure 85a 5 11 1 *
86 2,2- dimethylbutane (CH3)3CCH2CH3 6 14 * *
86 hexane CH3CH2CH2CH2CH2CH3 6 14 *
86 2- methylpentane (CH3)2CHCH2CH2CH3 6 14 * *
86 3- methylpentane see structure 86a 6 14 *
92 toluene see structure 92a 7 8 * * * *
93 2,4- hexadienenitrile CH3CHCHCHCHCN 6 7 1 ?
93 4- methylpyridine see structure 93a 6 7 1 *
94 2- aminopyridine see structure 94a 5 6 2 *
94 2- methylpyrazine see structure 94b 5 6 2 *
94 ?- methylpyrimidine see structure 94c 5 6 2 *
94 2- methylpyrimidine see structure 94d 5 6 2 *
94 4- methylpyrimidine see structure 94e 5 6 2 *
94 pentanedinitrile (glutaronitrile) NCCH2CH2CH2CN 5 6 2 *
95 2- aminopyrimidine see structure 95a 4 5 3 *
95 3,4- dimethylpyrrole see structure 95b 6 9 1 *
95 ?- ethylpyrrole see structure 95c 6 9 1 *
95 5- hexenenitrile CH2CH(CH2)3CN 6 9 1 *
96 1,2- heptadiene CH2CCH(CH2)3CH3 7 12 *
97 ?- methylpentanenitrile CH3CH2CH2CH2CN+CH2 6 11 1 *
98 cycloheptane see structure 98a 7 14 #
98 1,2- dimethylcyclopentane see structure 98b 7 14 #
98 1,3- dimethylcyclopentane see structure 98c 7 14 #
98 1- heptene CH2CH(CH2)4CH3 7 14 * #
98 5- methyl-1-hexene CH2CH(CH2)2CH(CH3)2 7 14 #
98 3- methyl-1-hexene see structure 98f 7 14 #
98 methylcyclohexane see structure 98g 7 14
100 2,2- dimethylpentane see structure 100a 7 16 *
100 2,3- dimethylpentane see structure 100b 7 16 *
100 n- heptane CH3(CH2)5CH3 7 16 * *
100 2,2,3- trimethylbutane see structure 100d 7 16 *
102 (E,Z)-l- buten-3-yne-1,4-dicarbonitrile see structure 102a 6 2 2 *
103 benzonitrile see structure 103a 7 5 1 * * * *
104 2- cyanopyridine see structure 104a 6 4 2 *
104 styrene see structure 104b 8 8 * * *
106 cyclobutanedicarbonitrile see structure 106a 6 6 2
106 ethylbenzene see structure 106b 8 10 #
106 p- xylene see structure 106c 8 10 * *
106 o- xylene see structure 106d 8 10 #
106 m- xylene see structure 106e 8 10 *
107 ?- dimethylpyridine see structure 107a 7 9 1 *
107 2- ethylpyridine see structure 107b 7 9 1 *
108 2- amino-4-methylpyridine see structure 108a 6 8 2 *
108 4- cyano-5-aminoimidazole see structure 108b 4 4 4
108 diaminomaleonitrile see structure 108c 4 4 4
108 2,5- dimethylpyrazine see structure 108d 6 8 2 *
108 ?- dimethylpyrimidine see structure 108e 6 8 2 *
109 ?- amino-?-methylpyrimidine see structure 109a 5 7 3 *
109 3,3- dimethylcyclobutanecarbonitrile see structure 109b 7 11 1 *
109 ?- trimethylpyrrole see structure 109c 7 11 1 *
110 2,3- dimethysuccinonitrile see structure 110a 6 10 2 * *
110 ?- methylglutaronitrile see structure 110b 6 10 2 *
114 2,2- dimethylhexane see structure 114a 8 18 *
116 4- ethynyltoluene see structure 116a 9 8 #
116 indene see structure 116b 9 8
116 1- phenylallene see structure 116c 9 8 #
116 1- phenylpropyne see structure 116d 9 8 #
117 4- tolunitrile see structure 117a 8 7 1 *
118 benzimidazole see structure 118a 7 6 2 *
118 indazole see structure 118b 7 6 2 *
118 2- methylstyrene see structure 118c 9 12 #
118 3- methylstyrene see structure 118d 9 12 #
118 4- methylstyrene see structure 118e 9 12 * #
118 1- phenylpropene see structure 118f 9 12 #
118 2- phenylpropene see structure 118g 9 12 #
118 3- phenylpropene see structure 118h 9 12 #
120 2- ethyltoluene see structure 120a 9 12 #
120 3- ethyltoluene see structure 120b 9 12 *
120 4- ethyltoluene see structure 120c 9 12 *
120 isopropylbenzene see structure 120d 9 12 #
120 1,2,3- trimethylbenzene see structure 120e 9 12 #
120 1,2,4- trimethylbenzene see structure 120f 9 12 #
120 1,3,5- trimethylbenzene see structure 120g 9 12 #
121 ?- trimethylpyridine see structure 121a 8 11 1 *
122 N,N- dimethylaminopyridine see structure 122a 7 10 2 *
128 azulene see structure 128a 10 8 #
128 1,3- dicyanobenzene see structure 128b 8 4 2 *
128 1,4- dicyanobenzene see structure 128c 8 4 2 * *
128 1- methyleneindene see structure 128d 10 8 #
128 naphthalene see structure 128e 10 8 #
130 1,4- divinylbenzene see structure 130a 10 10 *
130 2- methylindene see structure 130b 10 10 *
132 ?- methylbenzimidazole see structure 132a 8 8 2 *
135 adenine see structure 135a 5 5 5 *
136 2,6- dimethyl-3-ethylpyrazine see structure 136a 8 12 2 *
142 methylnapthalene see structure 142a 11 10 *
145 ?- ethylindole see structure 145a 10 11 1 *
153 1,3,5- tricyanobenzene see structure 153a 9 3 3 *
153 1,2,4- tricyanobenzene see structure 153b 9 3 3 *
204 tetracyanocyclooctatetraene see structure 204 12 4 4 *
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Updated: 14 January 2005