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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.681832
Energy at 298.15K-476.686288
HF Energy-476.452491
Nuclear repulsion energy101.322683
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/6-311+G(3df,2p)
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 3148 3148 14.31      
2 A1 1509 1509 2.87      
3 A1 1149 1149 1.43      
4 A1 1054 1054 0.81      
5 A1 636 636 23.91      
6 A2 3230 3230 0.00      
7 A2 1205 1205 0.00      
8 A2 910 910 0.00      
9 B1 3244 3244 2.26      
10 B1 966 966 3.29      
11 B1 841 841 0.55      
12 B2 3146 3146 9.62      
13 B2 1485 1485 0.84      
14 B2 1086 1086 22.76      
15 B2 680 680 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 12144.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12144.1 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/6-311+G(3df,2p)
ABC
0.74133 0.36023 0.26828

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.865
C2 0.000 0.739 -0.796
C3 0.000 -0.739 -0.796
H4 -0.912 1.249 -1.070
H5 0.912 1.249 -1.070
H6 0.912 -1.249 -1.070
H7 -0.912 -1.249 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81801.81802.47682.47682.47682.4768
C21.81801.47771.07991.07992.20392.2039
C31.81801.47772.20392.20391.07991.0799
H42.47681.07992.20391.82343.09252.4977
H52.47681.07992.20391.82342.49773.0925
H62.47682.20391.07993.09252.49771.8234
H72.47682.20391.07992.49773.09251.8234

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.020 S1 C2 H4 115.058
S1 C2 H5 115.058 S1 C3 C2 66.020
S1 C3 H6 115.058 S1 C3 H7 115.058
C2 S1 C3 47.960 C2 C3 H6 118.179
C2 C3 H7 118.179 C3 C2 H4 118.179
C3 C2 H5 118.179 H4 C2 H5 115.181
H6 C3 H7 115.181
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability