return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2CS (Thioformaldehyde)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-437.264646
Energy at 298.15K 
HF Energy-437.264646
Nuclear repulsion energy44.644034
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 PBEPBE/Def2TZVPP
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 2981 2945 37.55 172.52 0.11 0.20
2 A1 1441 1424 5.16 6.91 0.55 0.71
3 A1 1071 1058 11.16 24.54 0.22 0.37
4 B1 987 976 40.14 0.00 0.75 0.86
5 B2 3061 3024 10.20 125.10 0.75 0.86
6 B2 973 961 3.26 1.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5256.9 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 5193.3 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 PBEPBE/Def2TZVPP
ABC
9.69656 0.58774 0.55416

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.587
C2 0.000 0.000 -1.027
H3 0.000 0.929 -1.612
H4 0.000 -0.929 -1.612

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.61372.38712.3871
C21.61371.09781.0978
H32.38711.09781.8574
H42.38711.09781.8574

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 122.224 S1 C2 H4 122.224
H3 C2 H4 115.553
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.132      
2 C -0.111      
3 H 0.122      
4 H 0.122      


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 -1.629 1.629
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.654 0.000 0.000
y 0.000 -20.299 0.000
z 0.000 0.000 -17.313
Traceless
 xyz
x -0.848 0.000 0.000
y 0.000 -1.815 0.000
z 0.000 0.000 2.663
Polar
3z2-r25.326
x2-y20.645
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.033 0.000 0.000
y 0.000 3.612 0.000
z 0.000 0.000 6.544


<r2> (average value of r2) Å2
<r2> 30.683
(<r2>)1/2 5.539