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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-438.646658
Energy at 298.15K-438.650518
HF Energy-438.646658
Nuclear repulsion energy56.288567
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 B3PW91/6-31G(2df,p)
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' 3165 3043 5.02 59.61 0.75 0.86
2 A' 3066 2948 20.72 108.41 0.00 0.00
3 A' 2707 2602 4.04 114.93 0.34 0.51
4 A' 1480 1423 7.45 12.85 0.75 0.86
5 A' 1350 1298 7.21 2.23 0.52 0.68
6 A' 1095 1053 14.49 9.93 0.73 0.84
7 A' 800 770 0.37 7.66 0.41 0.58
8 A' 721 693 2.18 10.09 0.22 0.36
9 A" 3165 3042 6.23 65.89 0.75 0.86
10 A" 1468 1411 4.26 13.76 0.75 0.86
11 A" 969 931 5.35 3.74 0.75 0.86
12 A" 246 237 15.03 1.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10115.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 9724.7 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 B3PW91/6-31G(2df,p)
ABC
3.42844 0.43107 0.41332

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.152 0.000
S2 -0.048 -0.665 0.000
H3 1.286 -0.830 0.000
H4 -1.097 1.454 0.000
H5 0.430 1.550 0.896
H6 0.430 1.550 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81712.38961.09191.09111.0911
S21.81711.34412.36462.43712.4371
H32.38961.34413.30132.68402.6840
H41.09192.36463.30131.77371.7737
H51.09112.43712.68401.77371.7924
H61.09112.43712.68401.77371.7924

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.075 S2 C1 H4 106.049
S2 C1 H5 111.405 S2 C1 H6 111.405
H4 C1 H5 108.682 H4 C1 H6 108.682
H5 C1 H6 110.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.447      
2 S -0.248      
3 H 0.172      
4 H 0.179      
5 H 0.172      
6 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.800 1.468 0.000 1.672
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.805 -1.302 0.000
y -1.302 -19.928 0.000
z 0.000 0.000 -22.231
Traceless
 xyz
x 2.274 -1.302 0.000
y -1.302 0.590 0.000
z 0.000 0.000 -2.864
Polar
3z2-r2-5.728
x2-y21.122
xy-1.302
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.095 -0.201 0.000
y -0.201 5.144 0.000
z 0.000 0.000 3.670


<r2> (average value of r2) Å2
<r2> 40.228
(<r2>)1/2 6.343