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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD(T)=FULL/daug-cc-pVTZ

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(T)=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-476.273073
Energy at 298.15K 
HF Energy-475.612164
Nuclear repulsion energy101.200540
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(T)=FULL/daug-cc-pVTZ
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 3036 3036        
2 A1 1452 1452        
3 A1 1135 1135        
4 A1 641 641        
5 A1 556i 556i        
6 A2 3016 3016        
7 A2 856 856        
8 A2 859i 859i        
9 B1 3174 3174        
10 B1 415 415        
11 B1 502i 502i        
12 B2 2928 2928        
13 B2 1646 1646        
14 B2 668 668        
15 B2 826i 826i        

Unscaled Zero Point Vibrational Energy (zpe) 8111.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8111.3 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(T)=FULL/daug-cc-pVTZ
ABC
0.73990 0.35907 0.26760

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.866
C2 0.000 0.741 -0.798
C3 0.000 -0.741 -0.798
H4 -0.914 1.245 -1.070
H5 0.914 1.245 -1.070
H6 0.914 -1.245 -1.070
H7 -0.914 -1.245 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82131.82132.47692.47692.47692.4769
C21.82131.48131.07891.07892.20292.2029
C31.82131.48132.20292.20291.07891.0789
H42.47691.07892.20291.82813.08912.4901
H52.47691.07892.20291.82812.49013.0891
H62.47692.20291.07893.08912.49011.8281
H72.47692.20291.07892.49013.08911.8281

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.005 S1 C2 H4 114.882
S1 C2 H5 114.882 S1 C3 C2 66.005
S1 C3 H6 114.882 S1 C3 H7 114.882
C2 S1 C3 47.990 C2 C3 H6 117.871
C2 C3 H7 117.871 C3 C2 H4 117.871
C3 C2 H5 117.871 H4 C2 H5 115.813
H6 C3 H7 115.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability