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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B1B95/CEP-31G

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/CEP-31G
 hartrees
Energy at 0K-18.107965
Energy at 298.15K-18.111790
HF Energy-18.107965
Nuclear repulsion energy20.939561
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/CEP-31G
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' 3226 3089 19.30      
2 A' 3104 2972 36.04      
3 A' 2515 2408 67.15      
4 A' 1489 1426 11.51      
5 A' 1385 1326 2.82      
6 A' 1087 1041 30.10      
7 A' 784 751 2.51      
8 A' 692 663 2.83      
9 A" 3222 3085 32.08      
10 A" 1485 1422 14.07      
11 A" 982 940 12.78      
12 A" 235 225 28.62      

Unscaled Zero Point Vibrational Energy (zpe) 10102.6 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 9673.2 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/CEP-31G
ABC
3.31397 0.40288 0.38617

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.050 1.193 0.000
S2 -0.050 -0.687 0.000
H3 1.324 -0.874 0.000
H4 -1.101 1.507 0.000
H5 0.435 1.598 0.898
H6 0.435 1.598 -0.898

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.88012.48191.09731.09791.0979
S21.88011.38662.43252.50252.5025
H32.48191.38663.39832.77642.7764
H41.09732.43253.39831.78171.7817
H51.09792.50252.77641.78171.7967
H61.09792.50252.77641.78171.7967

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.742 S2 C1 H4 106.585
S2 C1 H5 111.638 S2 C1 H6 111.638
H4 C1 H5 108.508 H4 C1 H6 108.508
H5 C1 H6 109.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.601      
2 S -0.021      
3 H 0.038      
4 H 0.196      
5 H 0.194      
6 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.204 1.716 0.000 2.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.400 -1.680 0.000
y -1.680 -19.633 0.000
z 0.000 0.000 -21.864
Traceless
 xyz
x 2.348 -1.680 0.000
y -1.680 0.499 0.000
z 0.000 0.000 -2.847
Polar
3z2-r2-5.694
x2-y21.233
xy-1.680
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.655 -0.267 0.000
y -0.267 5.091 0.000
z 0.000 0.000 1.966


<r2> (average value of r2) Å2
<r2> 34.099
(<r2>)1/2 5.839