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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3/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 MP3/Def2TZVPP
 hartrees
Energy at 0K-476.152583
Energy at 298.15K-476.157072
HF Energy-475.607577
Nuclear repulsion energy101.432946
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 MP3/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 3196 3196 10.59      
2 A1 1526 1526 2.74      
3 A1 1159 1159 1.75      
4 A1 1068 1068 0.88      
5 A1 660 660 22.62      
6 A2 3278 3278 0.00      
7 A2 1212 1212 0.00      
8 A2 922 922 0.00      
9 B1 3293 3293 3.11      
10 B1 982 982 3.34      
11 B1 847 847 0.31      
12 B2 3190 3190 8.60      
13 B2 1499 1499 0.46      
14 B2 1098 1098 26.68      
15 B2 706 706 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 12317.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12317.3 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 MP3/Def2TZVPP
ABC
0.73825 0.36241 0.26909

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.742 -0.793
C3 0.000 -0.742 -0.793
H4 -0.912 1.246 -1.070
H5 0.912 1.246 -1.070
H6 0.912 -1.246 -1.070
H7 -0.912 -1.246 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81371.81372.47322.47322.47322.4732
C21.81371.48441.07811.07812.20502.2050
C31.81371.48442.20502.20501.07811.0781
H42.47321.07812.20501.82373.08852.4925
H52.47321.07812.20501.82372.49253.0885
H62.47322.20501.07813.08852.49251.8237
H72.47322.20501.07812.49253.08851.8237

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.844 S1 C2 H4 115.195
S1 C2 H5 115.195 S1 C3 C2 65.844
S1 C3 H6 115.195 S1 C3 H7 115.195
C2 S1 C3 48.311 C2 C3 H6 117.875
C2 C3 H7 117.875 C3 C2 H4 117.875
C3 C2 H5 117.875 H4 C2 H5 115.521
H6 C3 H7 115.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability