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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-18.167063
Energy at 298.15K-18.170849
HF Energy-18.167063
Nuclear repulsion energy20.868938
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 B3LYP/CEP-121G
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' 3149 3069 16.75 70.18 0.75 0.85
2 A' 3026 2949 36.25 133.92 0.00 0.01
3 A' 2474 2411 44.02 179.74 0.37 0.54
4 A' 1497 1458 9.40 17.11 0.75 0.85
5 A' 1376 1341 8.33 1.15 0.64 0.78
6 A' 1079 1052 22.47 20.26 0.73 0.84
7 A' 767 748 1.76 10.63 0.58 0.73
8 A' 658 641 3.76 30.38 0.28 0.43
9 A" 3142 3062 22.66 70.40 0.75 0.86
10 A" 1492 1454 11.16 17.18 0.75 0.86
11 A" 976 951 7.61 11.39 0.75 0.86
12 A" 213 207 22.69 8.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9924.1 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 9671.0 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 B3LYP/CEP-121G
ABC
3.31365 0.39637 0.38006

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.050 1.212 0.000
S2 -0.050 -0.694 0.000
H3 1.333 -0.856 0.000
H4 -1.102 1.506 0.000
H5 0.438 1.593 0.899
H6 0.438 1.593 -0.899

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.90582.48841.09231.09251.0925
S21.90581.39312.43842.50602.5060
H32.48841.39313.39302.75882.7588
H41.09232.43843.39301.78621.7862
H51.09252.50602.75881.78621.7989
H61.09252.50602.75881.78621.7989

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.693 S2 C1 H4 105.614
S2 C1 H5 110.442 S2 C1 H6 110.442
H4 C1 H5 109.686 H4 C1 H6 109.686
H5 C1 H6 110.841
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.662      
2 S 0.036      
3 H 0.046      
4 H 0.198      
5 H 0.191      
6 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.081 1.681 0.000 1.998
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.721 -1.594 0.000
y -1.594 -19.883 0.000
z 0.000 0.000 -22.101
Traceless
 xyz
x 2.271 -1.594 0.000
y -1.594 0.528 0.000
z 0.000 0.000 -2.799
Polar
3z2-r2-5.598
x2-y21.162
xy-1.594
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.252 -0.297 0.000
y -0.297 5.532 0.000
z 0.000 0.000 3.162


<r2> (average value of r2) Å2
<r2> 34.501
(<r2>)1/2 5.874