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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/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 MP2=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-476.027197
Energy at 298.15K-476.031638
HF Energy-475.577375
Nuclear repulsion energy100.224361
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 MP2=FULL/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 3170 3170 11.34      
2 A1 1491 1491 2.29      
3 A1 1157 1157 2.29      
4 A1 1038 1038 0.94      
5 A1 644 644 20.29      
6 A2 3267 3267 0.00      
7 A2 1189 1189 0.00      
8 A2 892 892 0.00      
9 B1 3282 3282 1.42      
10 B1 950 950 2.89      
11 B1 828 828 0.40      
12 B2 3166 3166 6.94      
13 B2 1458 1458 0.51      
14 B2 1055 1055 20.47      
15 B2 667 667 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 12127.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12127.0 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 MP2=FULL/daug-cc-pVDZ
ABC
0.72980 0.35093 0.26244

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.876
C2 0.000 0.744 -0.809
C3 0.000 -0.744 -0.809
H4 -0.925 1.257 -1.076
H5 0.925 1.257 -1.076
H6 0.925 -1.257 -1.076
H7 -0.925 -1.257 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84161.84162.49872.49872.49872.4987
C21.84161.48771.09091.09092.22042.2204
C31.84161.48772.22042.22041.09091.0909
H42.49871.09092.22041.85023.12132.5138
H52.49871.09092.22041.85022.51383.1213
H62.49872.22041.09093.12132.51381.8502
H72.49872.22041.09092.51383.12131.8502

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.176 S1 C2 H4 114.430
S1 C2 H5 114.430 S1 C3 C2 66.176
S1 C3 H6 114.430 S1 C3 H7 114.430
C2 S1 C3 47.648 C2 C3 H6 118.053
C2 C3 H7 118.053 C3 C2 H4 118.053
C3 C2 H5 118.053 H4 C2 H5 115.986
H6 C3 H7 115.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability