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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-438.688784
Energy at 298.15K-438.692672
HF Energy-438.688784
Nuclear repulsion energy56.246810
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 mPW1PW91/6-31G*
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' 3199 3033 6.09 66.06 0.75 0.86
2 A' 3100 2940 24.56 113.42 0.00 0.01
3 A' 2734 2593 20.44 138.60 0.39 0.56
4 A' 1520 1442 10.29 17.70 0.75 0.86
5 A' 1404 1331 6.40 4.76 0.49 0.65
6 A' 1126 1068 23.45 17.46 0.71 0.83
7 A' 818 776 1.00 9.72 0.54 0.70
8 A' 733 695 2.47 11.30 0.28 0.44
9 A" 3194 3029 8.76 72.93 0.75 0.86
10 A" 1511 1433 7.06 19.61 0.75 0.86
11 A" 1001 949 7.76 7.64 0.75 0.86
12 A" 255 242 20.55 4.55 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10297.2 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 9764.8 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 mPW1PW91/6-31G*
ABC
3.43435 0.43010 0.41238

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.153 0.000
S2 -0.048 -0.666 0.000
H3 1.287 -0.829 0.000
H4 -1.095 1.460 0.000
H5 0.430 1.555 0.894
H6 0.430 1.555 -0.894

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81852.38911.09121.09101.0910
S21.81851.34482.36972.44132.4413
H32.38911.34483.30332.68602.6860
H41.09122.36973.30331.77071.7707
H51.09102.44132.68601.77071.7886
H61.09102.44132.68601.77071.7886

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.954 S2 C1 H4 106.356
S2 C1 H5 111.631 S2 C1 H6 111.631
H4 C1 H5 108.474 H4 C1 H6 108.474
H5 C1 H6 110.109
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.668      
2 S -0.082      
3 H 0.111      
4 H 0.216      
5 H 0.211      
6 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.938 1.509 0.000 1.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.953 -1.465 0.000
y -1.465 -20.087 0.000
z 0.000 0.000 -22.400
Traceless
 xyz
x 2.291 -1.465 0.000
y -1.465 0.590 0.000
z 0.000 0.000 -2.881
Polar
3z2-r2-5.762
x2-y21.134
xy-1.465
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.811 -0.234 0.000
y -0.234 4.718 0.000
z 0.000 0.000 3.086


<r2> (average value of r2) Å2
<r2> 40.387
(<r2>)1/2 6.355