Accuracy

ch4r     54 Methane (Geo)

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    #  Species Formula
    44 B10H14 (Geo)H14B10
    45 Decaborane(14)H14B10
    46 Carbon, cationC
    47 Carbon, atomC
    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


REF: G. Herzberg, "Molecular Spectra and Molecular Structure III. Electronic Spectra and Electronic Structure of Polyatomic Molecules," Van Nostrand, New York, N.Y., 1966.
  
 SYMMETRY PM7
Methane
 GR=HERZ1966 <C-H>
 
  H     0.00000000 +0    0.0000000 +0    0.0000000 +0     0     0     0
  C     1.09400000 +1    0.0000000 +0    0.0000000 +0     1     0     0
  H     1.09400000 +0  109.4712210 +0    0.0000000 +0     2     1     0
  H     1.09400000 +0  109.4712210 +1 -120.0000000 +0     2     1     3
  H     1.09400000 +0  109.4712210 +0  120.0000000 +0     2     1     3
 
   2  1    3    4    5