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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD(T)/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(T)/daug-cc-pVDZ
 hartrees
Energy at 0K-476.064827
Energy at 298.15K-476.069224
HF Energy-475.576508
Nuclear repulsion energy99.596345
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)/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 3128 3128        
2 A1 1483 1483        
3 A1 1133 1133        
4 A1 1027 1027        
5 A1 621 621        
6 A2 3216 3216        
7 A2 1182 1182        
8 A2 877 877        
9 B1 3232 3232        
10 B1 938 938        
11 B1 820 820        
12 B2 3123 3123        
13 B2 1450 1450        
14 B2 1045 1045        
15 B2 637 637        

Unscaled Zero Point Vibrational Energy (zpe) 11955.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11955.8 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)/daug-cc-pVDZ
ABC
0.72250 0.34589 0.25884

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.882
C2 0.000 0.748 -0.815
C3 0.000 -0.748 -0.815
H4 -0.928 1.263 -1.084
H5 0.928 1.263 -1.084
H6 0.928 -1.263 -1.084
H7 -0.928 -1.263 -1.084

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.85491.85492.51462.51462.51462.5146
C21.85491.49611.09481.09482.23122.2312
C31.85491.49612.23122.23121.09481.0948
H42.51461.09482.23121.85573.13452.5262
H52.51461.09482.23121.85572.52623.1345
H62.51462.23121.09483.13452.52621.8557
H72.51462.23121.09482.52623.13451.8557

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.216 S1 C2 H4 114.498
S1 C2 H5 114.498 S1 C3 C2 66.216
S1 C3 H6 114.498 S1 C3 H7 114.498
C2 S1 C3 47.568 C2 C3 H6 118.064
C2 C3 H7 118.064 C3 C2 H4 118.064
C3 C2 H5 118.064 H4 C2 H5 115.880
H6 C3 H7 115.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability