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All results from a given calculation for CH3SH (Methanethiol)

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-436.416812
Energy at 298.15K-436.420720
HF Energy-436.416812
Nuclear repulsion energy56.154632
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 PBE1PBE/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' 3173 3047 4.24 60.23 0.75 0.86
2 A' 3083 2961 19.44 102.99 0.00 0.01
3 A' 2720 2612 11.62 118.05 0.37 0.54
4 A' 1551 1489 14.31 21.44 0.75 0.86
5 A' 1429 1372 1.17 5.70 0.48 0.65
6 A' 1142 1097 25.20 19.01 0.72 0.84
7 A' 834 801 1.29 8.87 0.60 0.75
8 A' 721 692 2.18 12.14 0.30 0.46
9 A" 3174 3048 7.29 65.94 0.75 0.86
10 A" 1544 1483 11.27 24.13 0.75 0.86
11 A" 1015 974 11.35 8.28 0.75 0.86
12 A" 256 246 21.86 7.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10320.4 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 9911.7 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 PBE1PBE/3-21G
ABC
3.41853 0.42873 0.41104

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.048 1.155 0.000
S2 -0.048 -0.667 0.000
H3 1.289 -0.821 0.000
H4 -1.097 1.466 0.000
H5 0.433 1.554 0.896
H6 0.433 1.554 -0.896

Atom - Atom Distances (Å)
  C1 S2 H3 H4 H5 H6
C11.82212.38561.09401.09291.0929
S21.82211.34572.37712.44322.4432
H32.38561.34573.30472.67862.6786
H41.09402.37713.30471.77571.7757
H51.09292.44322.67861.77571.7925
H61.09292.44322.67861.77571.7925

picture of Methanethiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H3 96.558 S2 C1 H4 106.517
S2 C1 H5 111.417 S2 C1 H6 111.417
H4 C1 H5 108.579 H4 C1 H6 108.579
H5 C1 H6 110.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.817      
2 S -0.075      
3 H 0.141      
4 H 0.255      
5 H 0.248      
6 H 0.248      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.939 1.474 0.000 1.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.115 -1.467 0.000
y -1.467 -20.234 0.000
z 0.000 0.000 -22.521
Traceless
 xyz
x 2.262 -1.467 0.000
y -1.467 0.584 0.000
z 0.000 0.000 -2.846
Polar
3z2-r2-5.692
x2-y21.119
xy-1.467
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.692 -0.241 0.000
y -0.241 4.501 0.000
z 0.000 0.000 2.727


<r2> (average value of r2) Å2
<r2> 40.557
(<r2>)1/2 6.368