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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD=FULL/daug-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/daug-cc-pVDZ
 hartrees
Energy at 0K-476.059599
Energy at 298.15K-476.064042
HF Energy-475.577199
Nuclear repulsion energy100.108858
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/daug-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 3155 3155 14.31      
2 A1 1501 1501 2.60      
3 A1 1152 1152 3.11      
4 A1 1045 1045 0.21      
5 A1 641 641 24.19      
6 A2 3241 3241 0.00      
7 A2 1196 1196 0.00      
8 A2 890 890 0.00      
9 B1 3256 3256 3.99      
10 B1 956 956 2.39      
11 B1 830 830 0.34      
12 B2 3149 3149 10.81      
13 B2 1465 1465 0.25      
14 B2 1071 1071 21.72      
15 B2 666 666 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 12106.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12106.4 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/daug-cc-pVDZ
ABC
0.72669 0.35062 0.26180

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-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 1.260 -1.081
H5 0.924 1.260 -1.081
H6 0.924 -1.260 -1.081
H7 -0.924 -1.260 -1.081

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84221.84222.50472.50472.50472.5047
C21.84221.49211.09211.09212.22522.2252
C31.84221.49212.22522.22521.09211.0921
H42.50471.09212.22521.84843.12462.5192
H52.50471.09212.22521.84842.51923.1246
H62.50472.22521.09213.12462.51921.8484
H72.50472.22521.09212.51923.12461.8484

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.110 S1 C2 H4 114.790
S1 C2 H5 114.790 S1 C3 C2 66.110
S1 C3 H6 114.790 S1 C3 H7 114.790
C2 S1 C3 47.779 C2 C3 H6 118.050
C2 C3 H7 118.050 C3 C2 H4 118.050
C3 C2 H5 118.050 H4 C2 H5 115.623
H6 C3 H7 115.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability