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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-436.564774
Energy at 298.15K-436.568680
HF Energy-436.564774
Nuclear repulsion energy56.024646
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 B3PW91/3-21G*
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' 3160 3032 5.17      
2 A' 3073 2948 20.63      
3 A' 2704 2595 13.64      
4 A' 1547 1484 13.76      
5 A' 1423 1365 1.49      
6 A' 1135 1089 24.59      
7 A' 828 794 1.19      
8 A' 706 678 2.25      
9 A" 3160 3032 8.62      
10 A" 1541 1479 10.72      
11 A" 1010 969 11.17      
12 A" 267 256 21.24      

Unscaled Zero Point Vibrational Energy (zpe) 10276.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9859.5 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 B3PW91/3-21G*
ABC
3.41246 0.42620 0.40866

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.159 0.000
S2 -0.048 -0.669 0.000
H3 1.290 -0.823 0.000
H4 -1.098 1.469 0.000
H5 0.434 1.557 0.897
H6 0.434 1.557 -0.897

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82842.39181.09421.09311.0931
S21.82841.34742.38182.44792.4479
H32.39181.34743.30992.68362.6836
H41.09422.38183.30991.77701.7770
H51.09312.44792.68361.77701.7935
H61.09312.44792.68361.77701.7935

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.554 S2 C1 H4 106.448
S2 C1 H5 111.339 S2 C1 H6 111.339
H4 C1 H5 108.665 H4 C1 H6 108.665
H5 C1 H6 110.243
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.800      
2 S -0.076      
3 H 0.137      
4 H 0.251      
5 H 0.244      
6 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.928 1.475 0.000 1.743
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.080 -1.451 0.000
y -1.451 -20.176 0.000
z 0.000 0.000 -22.469
Traceless
 xyz
x 2.242 -1.451 0.000
y -1.451 0.599 0.000
z 0.000 0.000 -2.841
Polar
3z2-r2-5.682
x2-y21.096
xy-1.451
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.708 -0.241 0.000
y -0.241 4.531 0.000
z 0.000 0.000 2.729


<r2> (average value of r2) Å2
<r2> 40.667
(<r2>)1/2 6.377