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: CCSD(T)=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-436.841697
Energy at 298.15K-436.843068
HF Energy-436.527873
Nuclear repulsion energy44.155554
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 CCSD(T)=FULL/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3092 2978        
2 A1 1493 1438        
3 A1 1065 1026        
4 B1 988 952        
5 B2 3184 3067        
6 B2 1000 963        

Unscaled Zero Point Vibrational Energy (zpe) 5410.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 5211.6 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 CCSD(T)=FULL/cc-pVDZ
ABC
9.59710 0.57387 0.54149

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.594
C2 0.000 0.000 -1.040
H3 0.000 0.934 -1.628
H4 0.000 -0.934 -1.628

Atom - Atom Distances (Å)
  S1 C2 H3 H4
S11.63412.40972.4097
C21.63411.10291.1029
H32.40971.10291.8670
H42.40971.10291.8670

picture of Thioformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 H3 122.180 S1 C2 H4 122.180
H3 C2 H4 115.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability