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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-438.702126
Energy at 298.15K-438.705998
HF Energy-438.702126
Nuclear repulsion energy56.408367
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(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' 3183 3039 4.56 59.15 0.75 0.86
2 A' 3083 2944 20.23 107.33 0.00 0.00
3 A' 2730 2606 3.43 114.78 0.34 0.51
4 A' 1488 1421 7.59 12.60 0.75 0.86
5 A' 1359 1297 6.80 2.01 0.53 0.69
6 A' 1103 1053 14.74 9.63 0.73 0.84
7 A' 806 769 0.37 7.87 0.40 0.57
8 A' 730 697 2.21 9.91 0.22 0.36
9 A" 3184 3040 5.64 65.21 0.75 0.86
10 A" 1476 1409 4.43 13.48 0.75 0.86
11 A" 975 931 5.31 3.56 0.75 0.86
12 A" 248 237 15.29 1.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10182.1 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 9720.9 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(2df,p)
ABC
3.43976 0.43308 0.41524

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.149 0.000
S2 -0.048 -0.663 0.000
H3 1.284 -0.829 0.000
H4 -1.095 1.451 0.000
H5 0.430 1.547 0.895
H6 0.430 1.547 -0.895

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.81262.38491.09041.08951.0895
S21.81261.34162.35992.43202.4320
H32.38491.34163.29572.67912.6791
H41.09042.35993.29571.77101.7710
H51.08952.43202.67911.77101.7898
H61.08952.43202.67911.77101.7898

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 97.111 S2 C1 H4 106.076
S2 C1 H5 111.412 S2 C1 H6 111.412
H4 C1 H5 108.665 H4 C1 H6 108.665
H5 C1 H6 110.444
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.457      
2 S -0.248      
3 H 0.175      
4 H 0.181      
5 H 0.175      
6 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.807 1.471 0.000 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.795 -1.312 0.000
y -1.312 -19.928 0.000
z 0.000 0.000 -22.229
Traceless
 xyz
x 2.283 -1.312 0.000
y -1.312 0.584 0.000
z 0.000 0.000 -2.868
Polar
3z2-r2-5.735
x2-y21.133
xy-1.312
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.071 -0.201 0.000
y -0.201 5.111 0.000
z 0.000 0.000 3.656


<r2> (average value of r2) Å2
<r2> 40.105
(<r2>)1/2 6.333