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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD=FULL/6-31G*

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=FULL/6-31G*
 hartrees
Energy at 0K-475.981226
Energy at 298.15K-475.985733
HF Energy-475.546221
Nuclear repulsion energy101.085919
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=FULL/6-31G*
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 3178 3019 11.35      
2 A1 1556 1478 4.69      
3 A1 1185 1126 3.54      
4 A1 1093 1038 0.64      
5 A1 674 640 22.95      
6 A2 3256 3093 0.00      
7 A2 1230 1168 0.00      
8 A2 943 896 0.00      
9 B1 3269 3105 7.05      
10 B1 1003 953 5.03      
11 B1 865 822 0.38      
12 B2 3174 3015 12.06      
13 B2 1525 1448 0.25      
14 B2 1126 1070 37.14      
15 B2 706 671 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 12392.0 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 11769.9 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=FULL/6-31G*
ABC
0.73505 0.35971 0.26739

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.866
C2 0.000 0.741 -0.794
C3 0.000 -0.741 -0.794
H4 -0.916 1.252 -1.082
H5 0.916 1.252 -1.082
H6 0.916 -1.252 -1.082
H7 -0.916 -1.252 -1.082

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81801.81802.49082.49082.49082.4908
C21.81801.48291.08781.08782.21302.2130
C31.81801.48292.21302.21301.08781.0878
H42.49081.08782.21301.83203.10302.5045
H52.49081.08782.21301.83202.50453.1030
H62.49082.21301.08783.10302.50451.8320
H72.49082.21301.08782.50453.10301.8320

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.930 S1 C2 H4 115.706
S1 C2 H5 115.706 S1 C3 C2 65.930
S1 C3 H6 115.706 S1 C3 H7 115.706
C2 S1 C3 48.140 C2 C3 H6 118.007
C2 C3 H7 118.007 C3 C2 H4 118.007
C3 C2 H5 118.007 H4 C2 H5 114.721
H6 C3 H7 114.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability