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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-438.702675
Energy at 298.15K-438.706569
HF Energy-438.702675
Nuclear repulsion energy56.358686
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 B1B95/6-31+G**
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' 3192 3053 5.76 66.70 0.75 0.86
2 A' 3090 2956 26.72 123.70 0.00 0.00
3 A' 2733 2615 10.26 141.64 0.33 0.50
4 A' 1491 1427 9.91 12.61 0.75 0.86
5 A' 1378 1318 6.50 2.36 0.71 0.83
6 A' 1109 1061 22.09 11.24 0.73 0.84
7 A' 811 776 1.20 9.87 0.39 0.56
8 A' 731 699 2.15 14.23 0.24 0.38
9 A" 3187 3048 6.91 77.71 0.75 0.86
10 A" 1480 1416 6.67 11.99 0.75 0.86
11 A" 984 942 6.37 2.91 0.75 0.86
12 A" 262 251 20.23 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10224.3 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9780.5 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 B1B95/6-31+G**
ABC
3.44791 0.43179 0.41403

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.150 0.000
S2 -0.048 -0.665 0.000
H3 1.284 -0.826 0.000
H4 -1.093 1.457 0.000
H5 0.429 1.552 0.893
H6 0.429 1.552 -0.893

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81492.38311.08941.08911.0891
S21.81491.34162.36492.43702.4370
H32.38311.34163.29572.68022.6802
H41.08942.36493.29571.76731.7673
H51.08912.43702.68021.76731.7858
H61.08912.43702.68021.76731.7858

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.903 S2 C1 H4 106.334
S2 C1 H5 111.654 S2 C1 H6 111.654
H4 C1 H5 108.440 H4 C1 H6 108.440
H5 C1 H6 110.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.592      
2 S -0.057      
3 H 0.071      
4 H 0.194      
5 H 0.192      
6 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.927 1.502 0.000 1.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.161 -1.446 0.000
y -1.446 -20.451 0.000
z 0.000 0.000 -22.704
Traceless
 xyz
x 2.417 -1.446 0.000
y -1.446 0.481 0.000
z 0.000 0.000 -2.898
Polar
3z2-r2-5.796
x2-y21.290
xy-1.446
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.060 -0.205 0.000
y -0.205 5.261 0.000
z 0.000 0.000 4.073


<r2> (average value of r2) Å2
<r2> 40.460
(<r2>)1/2 6.361