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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CID/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 CID/daug-cc-pVDZ
 hartrees
Energy at 0K-475.985456
Energy at 298.15K-475.989962
HF Energy-475.577819
Nuclear repulsion energy100.702617
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 CID/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 3226 3226 13.45      
2 A1 1540 1540 2.50      
3 A1 1183 1183 2.85      
4 A1 1075 1075 0.21      
5 A1 664 664 29.04      
6 A2 3313 3313 0.00      
7 A2 1227 1227 0.00      
8 A2 917 917 0.00      
9 B1 3328 3328 3.09      
10 B1 984 984 2.25      
11 B1 850 850 0.42      
12 B2 3219 3219 9.98      
13 B2 1503 1503 0.40      
14 B2 1106 1106 22.39      
15 B2 700 700 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 12417.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12417.0 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 CID/daug-cc-pVDZ
ABC
0.73356 0.35539 0.26504

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.870
C2 0.000 0.743 -0.802
C3 0.000 -0.743 -0.802
H4 -0.919 1.254 -1.075
H5 0.919 1.254 -1.075
H6 0.919 -1.254 -1.075
H7 -0.919 -1.254 -1.075

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83021.83022.49032.49032.49032.4903
C21.83021.48521.08651.08652.21492.2149
C31.83021.48522.21492.21491.08651.0865
H42.49031.08652.21491.83813.10952.5081
H52.49031.08652.21491.83812.50813.1095
H62.49032.21491.08653.10952.50811.8381
H72.49032.21491.08652.50813.10951.8381

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.061 S1 C2 H4 114.854
S1 C2 H5 114.854 S1 C3 C2 66.061
S1 C3 H6 114.854 S1 C3 H7 114.854
C2 S1 C3 47.879 C2 C3 H6 118.079
C2 C3 H7 118.079 C3 C2 H4 118.079
C3 C2 H5 118.079 H4 C2 H5 115.532
H6 C3 H7 115.532
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability