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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD=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 CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-476.056852
Energy at 298.15K-476.061295
HF Energy-475.576618
Nuclear repulsion energy100.104134
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 CCSD=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 3159 3159 14.26      
2 A1 1502 1502 2.51      
3 A1 1152 1152 2.99      
4 A1 1047 1047 0.23      
5 A1 641 641 24.21      
6 A2 3244 3244 0.00      
7 A2 1197 1197 0.00      
8 A2 893 893 0.00      
9 B1 3259 3259 3.94      
10 B1 958 958 2.49      
11 B1 832 832 0.39      
12 B2 3152 3152 10.51      
13 B2 1467 1467 0.24      
14 B2 1066 1066 22.05      
15 B2 666 666 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 12116.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12116.4 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.72610 0.35077 0.26183

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.876
C2 0.000 0.746 -0.808
C3 0.000 -0.746 -0.808
H4 -0.924 1.261 -1.081
H5 0.924 1.261 -1.081
H6 0.924 -1.261 -1.081
H7 -0.924 -1.261 -1.081

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84191.84192.50482.50482.50482.5048
C21.84191.49251.09261.09262.22632.2263
C31.84191.49252.22632.22631.09261.0926
H42.50481.09262.22631.84893.12642.5211
H52.50481.09262.22631.84892.52113.1264
H62.50482.22631.09263.12642.52111.8489
H72.50482.22631.09262.52113.12641.8489

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.100 S1 C2 H4 114.791
S1 C2 H5 114.791 S1 C3 C2 66.100
S1 C3 H6 114.791 S1 C3 H7 114.791
C2 S1 C3 47.800 C2 C3 H6 118.081
C2 C3 H7 118.081 C3 C2 H4 118.081
C3 C2 H5 118.081 H4 C2 H5 115.583
H6 C3 H7 115.583
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability