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All results from a given calculation for H2CS (Thioformaldehyde)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-434.336244
Energy at 298.15K-434.337658
HF Energy-434.336244
Nuclear repulsion energy44.316283
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 HF/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 A1 3306 2994 8.49      
2 A1 1638 1483 1.25      
3 A1 1084 982 34.63      
4 B1 1153 1044 80.04      
5 B2 3405 3083 2.42      
6 B2 1087 984 3.93      

Unscaled Zero Point Vibrational Energy (zpe) 5836.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 5285.2 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 HF/3-21G
ABC
10.04412 0.57412 0.54308

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.593
C2 0.000 0.000 -1.045
H3 0.000 0.913 -1.610
H4 0.000 -0.913 -1.610

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.63842.38462.3846
C21.63841.07311.0731
H32.38461.07311.8250
H42.38461.07311.8250

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 121.751 S1 C2 H4 121.751
H3 C2 H4 116.498
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.168      
2 C -0.703      
3 H 0.268      
4 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.419 2.419
CHELPG 0.000 0.000 -2.412 2.412
AIM        
ESP 0.000 0.000 -2.437 2.437


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.279 0.000 0.000
y 0.000 -20.586 0.000
z 0.000 0.000 -17.793
Traceless
 xyz
x -1.089 0.000 0.000
y 0.000 -1.550 0.000
z 0.000 0.000 2.639
Polar
3z2-r25.279
x2-y20.307
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.451 0.000 0.000
y 0.000 2.132 0.000
z 0.000 0.000 6.108


<r2> (average value of r2) Å2
<r2> 31.245
(<r2>)1/2 5.590