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: MP2/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-436.900650
Energy at 298.15K-436.902079
HF Energy-436.559803
Nuclear repulsion energy44.812718
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 MP2/aug-cc-pV(T+d)Z
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 3107 3107 25.55      
2 A1 1498 1498 2.01      
3 A1 1099 1099 3.26      
4 B1 1013 1013 42.68      
5 B2 3200 3200 2.50      
6 B2 1008 1008 2.22      

Unscaled Zero Point Vibrational Energy (zpe) 5462.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5462.5 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 MP2/aug-cc-pV(T+d)Z
ABC
9.81104 0.59151 0.55788

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.585
C2 0.000 0.000 -1.026
H3 0.000 0.923 -1.599
H4 0.000 -0.923 -1.599

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.61072.37082.3708
C21.61071.08661.0866
H32.37081.08661.8466
H42.37081.08661.8466

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 121.818 S1 C2 H4 121.818
H3 C2 H4 116.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability