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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-436.629769
Energy at 298.15K-436.633671
HF Energy-436.629769
Nuclear repulsion energy55.839946
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 TPSSh/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' 3145 3037 7.80 62.77 0.75 0.86
2 A' 3061 2956 23.96 108.27 0.00 0.01
3 A' 2691 2599 17.20 121.53 0.37 0.54
4 A' 1555 1502 11.58 21.31 0.75 0.86
5 A' 1422 1373 3.97 5.24 0.47 0.64
6 A' 1136 1097 22.94 20.18 0.73 0.84
7 A' 823 795 1.22 8.41 0.61 0.76
8 A' 688 664 2.99 13.98 0.30 0.46
9 A" 3144 3036 12.34 69.21 0.75 0.86
10 A" 1550 1497 8.53 23.97 0.75 0.86
11 A" 1006 972 9.12 9.06 0.75 0.86
12 A" 271 262 19.95 8.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10245.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 9894.5 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 TPSSh/3-21G*
ABC
3.40447 0.42236 0.40511

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.166 0.000
S2 -0.048 -0.673 0.000
H3 1.290 -0.821 0.000
H4 -1.099 1.472 0.000
H5 0.436 1.559 0.898
H6 0.436 1.559 -0.898

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.83862.39561.09431.09351.0935
S21.83861.34672.38862.45402.4540
H32.39561.34673.31172.68342.6834
H41.09432.38863.31171.78041.7804
H51.09352.45402.68341.78041.7961
H61.09352.45402.68341.78041.7961

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.319 S2 C1 H4 106.271
S2 C1 H5 111.076 S2 C1 H6 111.076
H4 C1 H5 108.933 H4 C1 H6 108.933
H5 C1 H6 110.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.764      
2 S -0.077      
3 H 0.131      
4 H 0.241      
5 H 0.235      
6 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.909 1.478 0.000 1.735
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.730 -0.241 0.000
y -0.241 4.603 0.000
z 0.000 0.000 2.737


<r2> (average value of r2) Å2
<r2> 40.910
(<r2>)1/2 6.396