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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B1B95/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-436.624087
Energy at 298.15K-436.628019
HF Energy-436.624087
Nuclear repulsion energy56.245472
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B1B95/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3182 3038 4.76 60.43 0.75 0.86
2 A' 3094 2954 19.76 102.79 0.00 0.01
3 A' 2721 2598 11.56 116.81 0.37 0.54
4 A' 1554 1484 13.60 21.44 0.75 0.86
5 A' 1431 1366 1.46 5.66 0.49 0.66
6 A' 1143 1091 24.50 19.25 0.73 0.84
7 A' 837 799 1.18 8.41 0.60 0.75
8 A' 718 685 2.32 12.67 0.30 0.46
9 A" 3183 3039 8.06 65.88 0.75 0.86
10 A" 1548 1478 10.68 24.11 0.75 0.86
11 A" 1015 969 10.77 8.36 0.75 0.86
12 A" 279 266 20.92 7.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10351.0 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 9884.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B1B95/3-21G*
ABC
3.43618 0.42975 0.41204

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.154 0.000
S2 -0.048 -0.667 0.000
H3 1.286 -0.818 0.000
H4 -1.094 1.464 0.000
H5 0.432 1.551 0.894
H6 0.432 1.551 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82052.38021.09081.08981.0898
S21.82051.34232.37342.43902.4390
H32.38021.34233.29662.67172.6717
H41.09082.37343.29661.77091.7709
H51.08982.43902.67171.77091.7874
H61.08982.43902.67171.77091.7874

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.453 S2 C1 H4 106.514
S2 C1 H5 111.392 S2 C1 H6 111.392
H4 C1 H5 108.607 H4 C1 H6 108.607
H5 C1 H6 110.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.791      
2 S -0.073      
3 H 0.135      
4 H 0.247      
5 H 0.241      
6 H 0.241      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.914 1.456 0.000 1.719
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.050 -1.431 0.000
y -1.431 -20.145 0.000
z 0.000 0.000 -22.400
Traceless
 xyz
x 2.223 -1.431 0.000
y -1.431 0.580 0.000
z 0.000 0.000 -2.803
Polar
3z2-r2-5.605
x2-y21.095
xy-1.431
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.675 -0.239 0.000
y -0.239 4.493 0.000
z 0.000 0.000 2.722


<r2> (average value of r2) Å2
<r2> 40.418
(<r2>)1/2 6.358