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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-433.833183
Energy at 298.15K-433.837083
HF Energy-433.833183
Nuclear repulsion energy56.266324
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 B1B95/STO-3G
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' 3517 3105 0.59 28.34 0.74 0.85
2 A' 3327 2938 3.30 42.37 0.01 0.02
3 A' 3008 2656 22.23 62.50 0.31 0.48
4 A' 1696 1498 5.53 15.98 0.75 0.86
5 A' 1558 1375 2.54 4.21 0.73 0.84
6 A' 1237 1092 17.64 13.11 0.75 0.86
7 A' 919 812 0.48 7.69 0.46 0.63
8 A' 867 766 0.40 6.07 0.29 0.45
9 A" 3489 3081 4.02 29.26 0.75 0.86
10 A" 1684 1487 4.72 17.09 0.75 0.86
11 A" 1075 949 1.27 4.83 0.75 0.86
12 A" 271 239 11.24 9.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11324.0 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 9999.0 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 B1B95/STO-3G
ABC
3.40649 0.43270 0.41401

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.050 1.142 0.000
S2 -0.050 -0.668 0.000
H3 1.301 -0.769 0.000
H4 -1.091 1.483 0.000
H5 0.440 1.561 0.890
H6 0.440 1.561 -0.890

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.80982.34001.09611.09871.0987
S21.80981.35452.38962.44972.4497
H32.34001.35453.28542.63882.6388
H41.09612.38963.28541.77291.7729
H51.09872.44972.63881.77291.7791
H61.09872.44972.63881.77291.7791

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 94.279 S2 C1 H4 108.111
S2 C1 H5 112.446 S2 C1 H6 112.446
H4 C1 H5 107.755 H4 C1 H6 107.755
H5 C1 H6 108.125
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.314      
2 S 0.086      
3 H -0.017      
4 H 0.086      
5 H 0.079      
6 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.679 0.705 0.000 0.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.580 -0.827 0.000
y -0.827 -18.535 0.000
z 0.000 0.000 -19.197
Traceless
 xyz
x 1.285 -0.827 0.000
y -0.827 -0.146 0.000
z 0.000 0.000 -1.139
Polar
3z2-r2-2.279
x2-y20.954
xy-0.827
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.986 -0.279 0.000
y -0.279 2.348 0.000
z 0.000 0.000 0.916


<r2> (average value of r2) Å2
<r2> 39.051
(<r2>)1/2 6.249