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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-476.171861
Energy at 298.15K-476.176386
HF Energy-475.582817
Nuclear repulsion energy101.214984
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=FULL/6-311G*
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 3184 3184 11.91      
2 A1 1547 1547 3.23      
3 A1 1181 1181 3.32      
4 A1 1097 1097 0.92      
5 A1 678 678 23.00      
6 A2 3268 3268 0.00      
7 A2 1227 1227 0.00      
8 A2 952 952 0.00      
9 B1 3281 3281 6.89      
10 B1 1009 1009 10.54      
11 B1 868 868 0.47      
12 B2 3179 3179 10.73      
13 B2 1514 1514 1.09      
14 B2 1133 1133 46.91      
15 B2 707 707 2.11      

Unscaled Zero Point Vibrational Energy (zpe) 12412.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12412.4 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=FULL/6-311G*
ABC
0.73512 0.36101 0.26813

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.864
C2 0.000 0.743 -0.793
C3 0.000 -0.743 -0.793
H4 -0.915 1.250 -1.076
H5 0.915 1.250 -1.076
H6 0.915 -1.250 -1.076
H7 -0.915 -1.250 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81601.81602.48212.48212.48212.4821
C21.81601.48641.08361.08362.21132.2113
C31.81601.48642.21132.21131.08361.0836
H42.48211.08362.21131.83073.09832.4996
H52.48211.08362.21131.83072.49963.0983
H62.48212.21131.08363.09832.49961.8307
H72.48212.21131.08362.49963.09831.8307

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.842 S1 C2 H4 115.412
S1 C2 H5 115.412 S1 C3 C2 65.842
S1 C3 H6 115.412 S1 C3 H7 115.412
C2 S1 C3 48.317 C2 C3 H6 117.872
C2 C3 H7 117.872 C3 C2 H4 117.872
C3 C2 H5 117.872 H4 C2 H5 115.280
H6 C3 H7 115.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability