Molecule
Name
Methane
IUPAC name
(12C,1H3,2H1)Methane
Secondary names
Methyl hydride, deuteriomethane 1, CH3D, CH3D-12
InChI
InChI=1S/CH4/h1H4/i1+0DH3
InChI key
VNWKTOKETHGBQD-DWJDBXPTSA-N
Comments
1$^{12}CH_3D$ isotope
Formula
$^{12}CH_3D$
Chemical formula
CH4
Isotopic formula
[12]C[1]H3D
Structural formula
[12CH3D]
Charge
0
Unpaired electrons
0
  Atom Name Number
$^{12}C$ Carbon 1
$^1H$ Hydrogen 3
$^2H$ or $D$ Hydrogen 1
Relations
  • no
Isotope mixture type
pure isotope
Spin type
equilibrated
Molar mass
17.037577 $g/mol$
State STP
gas
Protic
aprotic
Polarity
nonpolar
Dipole
0.0 $D$
Molecule symmetry
C3v
Case
symmetric-top
Vibrations number
6
Vibrations
Label Mode Bond Symmetry Degeneracy Fundamental frequency Observed frequency Observed frequency Harmonic frequency Activity IR Activity Raman Strength Comments
V1 stretching sym. $-^{12}C \leq H_3$ $A_{1}$ no 2945.0 2914.0 2973.0 active inactive m Fermi resonance with 2V5: observed at 2914 and 2973 $cm^{-1}$
V2 stretching $\geq ^{12}C-D$ $A_{1}$ no 2200.0 2200.0 active inactive m
V3 bending sym. $-^{12}C \leq H_3$ $A_{1}$ no 1300.0 1300.0 active active m Raman: 1306 $cm^{-1}$ (gas)
V4 stretching $-^{12}C \leq H_3$ $E$ double 3017.0 3016.9 active inactive s
V5 deformation $-^{12}C \leq H_3$ $E$ double 1471.0 1471.0 active inactive w
V6 bending asym. in-p (rocking) $-^{12}C \leq H_3$ $E$ double 1155.0 1155.0 active active m Raman: 1156 $cm^{-1}$ (gas)
Comments
Data from NIST Chemistry WebBook
Publications
Chemical bonds
  Bond Number
$\geq ^{12}C-^1H$ 3
$\geq ^{12}C-D$ 1