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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-476.579071
Energy at 298.15K-476.583527
HF Energy-476.407957
Nuclear repulsion energy101.071368
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/6-31G(2df,p)
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 3169 3169 10.61      
2 A1 1508 1508 5.18      
3 A1 1158 1158 1.99      
4 A1 1057 1057 0.07      
5 A1 644 644 24.55      
6 A2 3254 3254 0.00      
7 A2 1207 1207 0.00      
8 A2 907 907 0.00      
9 B1 3269 3269 2.48      
10 B1 965 965 3.96      
11 B1 840 840 0.41      
12 B2 3167 3167 9.70      
13 B2 1485 1485 0.18      
14 B2 1083 1083 26.25      
15 B2 685 685 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 12198.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12198.9 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 B2PLYP=FULL/6-31G(2df,p)
ABC
0.73823 0.35827 0.26689

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.867
C2 0.000 0.740 -0.799
C3 0.000 -0.740 -0.799
H4 -0.913 1.252 -1.073
H5 0.913 1.252 -1.073
H6 0.913 -1.252 -1.073
H7 -0.913 -1.252 -1.073

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82281.82282.48322.48322.48322.4832
C21.82281.48051.08241.08242.20892.2089
C31.82281.48052.20892.20891.08241.0824
H42.48321.08242.20891.82673.09982.5044
H52.48321.08242.20891.82672.50443.0998
H62.48322.20891.08243.09982.50441.8267
H72.48322.20891.08242.50443.09981.8267

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.040 S1 C2 H4 115.071
S1 C2 H5 115.071 S1 C3 C2 66.040
S1 C3 H6 115.071 S1 C3 H7 115.071
C2 S1 C3 47.921 C2 C3 H6 118.226
C2 C3 H7 118.226 C3 C2 H4 118.226
C3 C2 H5 118.226 H4 C2 H5 115.093
H6 C3 H7 115.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability