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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-436.629498
Energy at 298.15K-436.633366
HF Energy-436.629498
Nuclear repulsion energy55.805864
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/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' 3152 3032 6.59 60.08 0.75 0.86
2 A' 3072 2955 21.82 102.15 0.00 0.01
3 A' 2676 2574 16.36 117.24 0.37 0.54
4 A' 1555 1495 11.75 21.35 0.75 0.86
5 A' 1424 1370 3.12 5.08 0.48 0.65
6 A' 1134 1091 22.73 19.48 0.73 0.84
7 A' 825 793 1.04 8.28 0.62 0.76
8 A' 686 660 2.49 14.14 0.30 0.46
9 A" 3153 3033 10.40 65.53 0.75 0.86
10 A" 1548 1489 8.90 24.03 0.75 0.86
11 A" 1007 969 9.44 8.83 0.75 0.86
12 A" 245 236 19.03 7.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10237.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 9848.4 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/3-21G*
ABC
3.41153 0.42146 0.40423

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.167 0.000
S2 -0.048 -0.673 0.000
H3 1.291 -0.826 0.000
H4 -1.097 1.475 0.000
H5 0.435 1.561 0.896
H6 0.435 1.561 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.84052.40181.09281.09181.0918
S21.84051.34852.39052.45572.4557
H32.40181.34853.31662.69012.6901
H41.09282.39053.31661.77691.7769
H51.09182.45572.69011.77691.7920
H61.09182.45572.69011.77691.7920

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.507 S2 C1 H4 106.362
S2 C1 H5 111.168 S2 C1 H6 111.168
H4 C1 H5 108.852 H4 C1 H6 108.852
H5 C1 H6 110.310
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.725      
2 S -0.070      
3 H 0.123      
4 H 0.228      
5 H 0.222      
6 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.890 1.441 0.000 1.694
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.169 -1.399 0.000
y -1.399 -20.231 0.000
z 0.000 0.000 -22.496
Traceless
 xyz
x 2.194 -1.399 0.000
y -1.399 0.601 0.000
z 0.000 0.000 -2.795
Polar
3z2-r2-5.590
x2-y21.062
xy-1.399
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.699 -0.245 0.000
y -0.245 4.558 0.000
z 0.000 0.000 2.713


<r2> (average value of r2) Å2
<r2> 40.954
(<r2>)1/2 6.400