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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CID/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 CID/cc-pVTZ
 hartrees
Energy at 0K-476.085128
Energy at 298.15K-476.089676
HF Energy-475.611144
Nuclear repulsion energy101.855637
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/cc-pVTZ
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 3241 3003 12.00      
2 A1 1563 1448 2.80      
3 A1 1192 1104 1.98      
4 A1 1097 1016 0.63      
5 A1 678 628 27.95      
6 A2 3323 3079 0.00      
7 A2 1247 1155 0.00      
8 A2 943 873 0.00      
9 B1 3337 3092 3.33      
10 B1 1006 932 2.91      
11 B1 865 801 0.36      
12 B2 3236 2998 10.43      
13 B2 1533 1420 0.62      
14 B2 1138 1054 25.94      
15 B2 733 679 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 12565.6 cm-1
Scaled (by 0.9265) Zero Point Vibrational Energy (zpe) 11642.0 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/cc-pVTZ
ABC
0.74585 0.36505 0.27127

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.859
C2 0.000 0.738 -0.790
C3 0.000 -0.738 -0.790
H4 -0.907 1.242 -1.066
H5 0.907 1.242 -1.066
H6 0.907 -1.242 -1.066
H7 -0.907 -1.242 -1.066

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80651.80652.46442.46442.46442.4644
C21.80651.47541.07431.07432.19552.1955
C31.80651.47542.19552.19551.07431.0743
H42.46441.07432.19551.81463.07682.4847
H52.46441.07432.19551.81462.48473.0768
H62.46442.19551.07433.07682.48471.8146
H72.46442.19551.07432.48473.07681.8146

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.898 S1 C2 H4 115.245
S1 C2 H5 115.245 S1 C3 C2 65.898
S1 C3 H6 115.245 S1 C3 H7 115.245
C2 S1 C3 48.203 C2 C3 H6 118.018
C2 C3 H7 118.018 C3 C2 H4 118.018
C3 C2 H5 118.018 H4 C2 H5 115.246
H6 C3 H7 115.246
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability