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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B2PLYP=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-476.545440
Energy at 298.15K-476.549906
HF Energy-476.402435
Nuclear repulsion energy100.840355
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 B2PLYP=FULL/6-31+G**
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 3177 3021 12.32      
2 A1 1532 1457 5.49      
3 A1 1163 1106 4.16      
4 A1 1074 1022 0.84      
5 A1 644 612 26.70      
6 A2 3262 3102 0.00      
7 A2 1212 1152 0.00      
8 A2 923 877 0.00      
9 B1 3275 3114 4.55      
10 B1 976 929 4.45      
11 B1 850 809 0.67      
12 B2 3175 3019 10.66      
13 B2 1503 1430 0.32      
14 B2 1103 1049 41.59      
15 B2 679 645 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 12272.9 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 11671.5 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 B2PLYP=FULL/6-31+G**
ABC
0.73731 0.35585 0.26543

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.870
C2 0.000 0.741 -0.801
C3 0.000 -0.741 -0.801
H4 -0.913 1.253 -1.080
H5 0.913 1.253 -1.080
H6 0.913 -1.253 -1.080
H7 -0.913 -1.253 -1.080

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82811.82812.49122.49122.49122.4912
C21.82811.48191.08331.08332.21042.2104
C31.82811.48192.21042.21041.08331.0833
H42.49121.08332.21041.82663.10032.5051
H52.49121.08332.21041.82662.50513.1003
H62.49122.21041.08333.10032.50511.8266
H72.49122.21041.08332.50513.10031.8266

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.089 S1 C2 H4 115.261
S1 C2 H5 115.261 S1 C3 C2 66.089
S1 C3 H6 115.261 S1 C3 H7 115.261
C2 S1 C3 47.822 C2 C3 H6 118.180
C2 C3 H7 118.180 C3 C2 H4 118.180
C3 C2 H5 118.180 H4 C2 H5 114.925
H6 C3 H7 114.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability