# Species Formula 48 MethylidyneHC 49 Methylene, singlet (Geo)CH2 50 Methylene, triplet (Geo)CH2 51 Methylene, singletCH2 52 Methylene, tripletCH2 53 Methyl, cationCH3 54 Methane (Geo)CH4 55 MethaneCH4 56 Methyl lithium (Geo)H3LiC 57 Methyl lithiumH3LiC 58 Carbon, dimer (Geo) C2 59 AcetyleneC2H2 60 Acetylene (Geo)C2H2 61 Vinyl, cationC2H3 62 VinylC2H3 63 Ethylene, cationC2H4 64 Ethylene (Geo)C2H4 65 EthyleneC2H4 66 MethylmethyleneC2H4 67 Ethyl, cationC2H5 68 Ethyl radicalC2H5
PM7 Carbon, dimer GWT=0.2 GR=JANAF86 <C-C> C 0.00000000 +0 0.0000000 +0 0.0000000 +0 0 0 0 C 1.24250000 +1 0.0000000 +0 0.0000000 +0 1 0 0