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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/6-31G**

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/6-31G**
 hartrees
Energy at 0K-475.982237
Energy at 298.15K-475.986769
HF Energy-475.553351
Nuclear repulsion energy101.508717
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3232 3020 9.20      
2 A1 1566 1463 6.05      
3 A1 1196 1118 3.10      
4 A1 1101 1028 0.52      
5 A1 684 639 19.56      
6 A2 3324 3106 0.00      
7 A2 1234 1153 0.00      
8 A2 952 889 0.00      
9 B1 3336 3117 4.78      
10 B1 1008 942 5.16      
11 B1 868 811 0.21      
12 B2 3229 3017 8.84      
13 B2 1536 1435 0.03      
14 B2 1128 1054 35.32      
15 B2 718 671 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 12555.0 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 11731.4 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/6-31G**
ABC
0.74206 0.36233 0.26948

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.739 -0.791
C3 0.000 -0.739 -0.791
H4 -0.911 1.245 -1.077
H5 0.911 1.245 -1.077
H6 0.911 -1.245 -1.077
H7 -0.911 -1.245 -1.077

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81151.81152.47822.47822.47822.4782
C21.81151.47891.08021.08022.20222.2022
C31.81151.47892.20222.20221.08021.0802
H42.47821.08022.20221.82143.08532.4903
H52.47821.08022.20221.82142.49033.0853
H62.47822.20221.08023.08532.49031.8214
H72.47822.20221.08022.49033.08531.8214

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.907 S1 C2 H4 115.640
S1 C2 H5 115.640 S1 C3 C2 65.907
S1 C3 H6 115.640 S1 C3 H7 115.640
C2 S1 C3 48.186 C2 C3 H6 117.914
C2 C3 H7 117.914 C3 C2 H4 117.914
C3 C2 H5 117.914 H4 C2 H5 114.935
H6 C3 H7 114.935
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability