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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-476.118193
Energy at 298.15K-476.122706
HF Energy-475.564747
Nuclear repulsion energy101.542223
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 MP3=FULL/6-31G(2df,p)
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 3227 3227 7.24      
2 A1 1532 1532 4.09      
3 A1 1176 1176 1.75      
4 A1 1073 1073 0.32      
5 A1 678 678 22.62      
6 A2 3313 3313 0.00      
7 A2 1228 1228 0.00      
8 A2 925 925 0.00      
9 B1 3326 3326 0.92      
10 B1 988 988 3.67      
11 B1 855 855 0.52      
12 B2 3223 3223 5.89      
13 B2 1504 1504 0.37      
14 B2 1105 1105 26.39      
15 B2 723 723 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 12437.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12437.7 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 MP3=FULL/6-31G(2df,p)
ABC
0.73886 0.36363 0.26982

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.861
C2 0.000 0.741 -0.791
C3 0.000 -0.741 -0.791
H4 -0.911 1.247 -1.070
H5 0.911 1.247 -1.070
H6 0.911 -1.247 -1.070
H7 -0.911 -1.247 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81031.81032.47272.47272.47272.4727
C21.81031.48281.07931.07932.20552.2055
C31.81031.48282.20552.20551.07931.0793
H42.47271.07932.20551.82293.09002.4950
H52.47271.07932.20551.82292.49503.0900
H62.47272.20551.07933.09002.49501.8229
H72.47272.20551.07932.49503.09001.8229

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.823 S1 C2 H4 115.339
S1 C2 H5 115.339 S1 C3 C2 65.823
S1 C3 H6 115.339 S1 C3 H7 115.339
C2 S1 C3 48.355 C2 C3 H6 117.963
C2 C3 H7 117.963 C3 C2 H4 117.963
C3 C2 H5 117.963 H4 C2 H5 115.245
H6 C3 H7 115.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability