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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-438.640831
Energy at 298.15K-438.644715
HF Energy-438.640831
Nuclear repulsion energy56.144776
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**
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' 3178 3046 6.15      
2 A' 3077 2949 23.90      
3 A' 2713 2600 14.48      
4 A' 1495 1432 9.51      
5 A' 1377 1319 6.60      
6 A' 1108 1062 21.82      
7 A' 807 774 0.88      
8 A' 721 691 2.37      
9 A" 3174 3042 8.91      
10 A" 1485 1423 6.37      
11 A" 984 944 7.25      
12 A" 261 250 19.67      

Unscaled Zero Point Vibrational Energy (zpe) 10189.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 9765.3 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 B3PW91/6-31G**
ABC
3.42802 0.42817 0.41058

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.156 0.000
S2 -0.048 -0.667 0.000
H3 1.288 -0.832 0.000
H4 -1.096 1.461 0.000
H5 0.430 1.557 0.895
H6 0.430 1.557 -0.895

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82322.39521.09181.09151.0915
S21.82321.34622.37252.44512.4451
H32.39521.34623.30812.69172.6917
H41.09182.37253.30811.77231.7723
H51.09152.44512.69171.77231.7907
H61.09152.44512.69171.77231.7907

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.028 S2 C1 H4 106.230
S2 C1 H5 111.565 S2 C1 H6 111.565
H4 C1 H5 108.541 H4 C1 H6 108.541
H5 C1 H6 110.232
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.542      
2 S -0.049      
3 H 0.075      
4 H 0.176      
5 H 0.170      
6 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.916 1.498 0.000 1.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.944 -1.442 0.000
y -1.442 -20.044 0.000
z 0.000 0.000 -22.348
Traceless
 xyz
x 2.251 -1.442 0.000
y -1.442 0.603 0.000
z 0.000 0.000 -2.854
Polar
3z2-r2-5.708
x2-y21.099
xy-1.442
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.877 -0.238 0.000
y -0.238 4.813 0.000
z 0.000 0.000 3.145


<r2> (average value of r2) Å2
<r2> 40.472
(<r2>)1/2 6.362