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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-476.205088
Energy at 298.15K-476.209627
HF Energy-475.589563
Nuclear repulsion energy101.321211
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/6-311G**
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 3197 3197 12.17      
2 A1 1543 1543 4.55      
3 A1 1181 1181 4.29      
4 A1 1096 1096 0.25      
5 A1 683 683 22.16      
6 A2 3280 3280 0.00      
7 A2 1221 1221 0.00      
8 A2 954 954 0.00      
9 B1 3294 3294 7.69      
10 B1 1014 1014 8.70      
11 B1 866 866 0.14      
12 B2 3193 3193 10.79      
13 B2 1511 1511 0.23      
14 B2 1141 1141 42.18      
15 B2 713 713 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 12442.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12442.8 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 MP3=FULL/6-311G**
ABC
0.73479 0.36238 0.26884

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.744 -0.791
C3 0.000 -0.744 -0.791
H4 -0.915 1.248 -1.076
H5 0.915 1.248 -1.076
H6 0.915 -1.248 -1.076
H7 -0.915 -1.248 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81261.81262.48052.48052.48052.4805
C21.81261.48821.08321.08322.21072.2107
C31.81261.48822.21072.21071.08321.0832
H42.48051.08322.21071.83083.09512.4956
H52.48051.08322.21071.83082.49563.0951
H62.48052.21071.08323.09512.49561.8308
H72.48052.21071.08322.49563.09511.8308

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.764 S1 C2 H4 115.556
S1 C2 H5 115.556 S1 C3 C2 65.764
S1 C3 H6 115.556 S1 C3 H7 115.556
C2 S1 C3 48.472 C2 C3 H6 117.713
C2 C3 H7 117.713 C3 C2 H4 117.713
C3 C2 H5 117.713 H4 C2 H5 115.364
H6 C3 H7 115.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability