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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-438.740197
Energy at 298.15K-438.744059
HF Energy-438.740197
Nuclear repulsion energy56.549576
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 mPW1PW91/6-311+G(3df,2p)
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' 3162 3162 5.42 53.86 0.75 0.86
2 A' 3072 3072 21.96 140.73 0.00 0.01
3 A' 2721 2721 1.42 117.91 0.24 0.39
4 A' 1489 1489 8.42 4.59 0.75 0.86
5 A' 1360 1360 3.59 0.18 0.11 0.19
6 A' 1102 1102 11.43 2.28 0.72 0.84
7 A' 807 807 0.30 7.51 0.21 0.34
8 A' 728 728 1.52 11.71 0.18 0.30
9 A" 3162 3162 5.27 65.39 0.75 0.86
10 A" 1477 1477 5.18 4.49 0.75 0.86
11 A" 976 976 4.94 0.20 0.75 0.86
12 A" 238 238 11.97 0.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10146.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10146.3 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 mPW1PW91/6-311+G(3df,2p)
ABC
3.45835 0.43530 0.41735

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.146 0.000
S2 -0.048 -0.661 0.000
H3 1.281 -0.831 0.000
H4 -1.092 1.449 0.000
H5 0.429 1.544 0.892
H6 0.429 1.544 -0.892

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.80772.38251.08761.08661.0866
S21.80771.33942.35472.42582.4258
H32.38251.33943.29112.67642.6764
H41.08762.35473.29111.76581.7658
H51.08662.42582.67641.76581.7843
H61.08662.42582.67641.76581.7843

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.292 S2 C1 H4 106.154
S2 C1 H5 111.449 S2 C1 H6 111.449
H4 C1 H5 108.616 H4 C1 H6 108.616
H5 C1 H6 110.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.319      
2 S -0.259      
3 H 0.139      
4 H 0.144      
5 H 0.147      
6 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.708 1.407 0.000 1.575
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.141 -1.250 0.000
y -1.250 -20.277 0.000
z 0.000 0.000 -22.591
Traceless
 xyz
x 2.293 -1.250 0.000
y -1.250 0.588 0.000
z 0.000 0.000 -2.881
Polar
3z2-r2-5.763
x2-y21.136
xy-1.250
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.745 -0.167 0.000
y -0.167 6.089 0.000
z 0.000 0.000 4.777


<r2> (average value of r2) Å2
<r2> 40.191
(<r2>)1/2 6.340