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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/aug-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 MP2=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-476.024357
Energy at 298.15K-476.028797
HF Energy-475.576800
Nuclear repulsion energy100.220334
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=FULL/aug-cc-pVDZ
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 3174 3076 11.27      
2 A1 1491 1445 2.22      
3 A1 1157 1122 2.18      
4 A1 1040 1008 0.98      
5 A1 645 625 20.34      
6 A2 3270 3169 0.00      
7 A2 1190 1154 0.00      
8 A2 895 868 0.00      
9 B1 3284 3183 1.39      
10 B1 952 923 3.03      
11 B1 829 804 0.45      
12 B2 3170 3072 6.66      
13 B2 1459 1414 0.49      
14 B2 1050 1017 20.76      
15 B2 668 648 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 12137.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 11763.4 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 MP2=FULL/aug-cc-pVDZ
ABC
0.72920 0.35110 0.26246

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.875
C2 0.000 0.744 -0.809
C3 0.000 -0.744 -0.809
H4 -0.925 1.258 -1.075
H5 0.925 1.258 -1.075
H6 0.925 -1.258 -1.075
H7 -0.925 -1.258 -1.075

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84121.84122.49882.49882.49882.4988
C21.84121.48811.09151.09152.22152.2215
C31.84121.48812.22152.22151.09151.0915
H42.49881.09152.22151.85073.12322.5158
H52.49881.09152.22151.85072.51583.1232
H62.49882.22151.09153.12322.51581.8507
H72.49882.22151.09152.51583.12321.8507

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.164 S1 C2 H4 114.436
S1 C2 H5 114.436 S1 C3 C2 66.164
S1 C3 H6 114.436 S1 C3 H7 114.436
C2 S1 C3 47.672 C2 C3 H6 118.082
C2 C3 H7 118.082 C3 C2 H4 118.082
C3 C2 H5 118.082 H4 C2 H5 115.942
H6 C3 H7 115.942
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability