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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-476.085592
Energy at 298.15K-476.090090
HF Energy-475.593512
Nuclear repulsion energy100.965737
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/TZVP
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 3188 3037 9.17      
2 A1 1530 1458 4.14      
3 A1 1169 1113 3.91      
4 A1 1094 1042 0.57      
5 A1 658 627 20.56      
6 A2 3282 3127 0.00      
7 A2 1214 1157 0.00      
8 A2 930 886 0.00      
9 B1 3295 3139 4.40      
10 B1 985 938 4.69      
11 B1 859 818 0.08      
12 B2 3186 3035 8.21      
13 B2 1501 1430 0.27      
14 B2 1121 1068 49.26      
15 B2 687 654 1.82      

Unscaled Zero Point Vibrational Energy (zpe) 12349.4 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 11765.3 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/TZVP
ABC
0.74258 0.35554 0.26597

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.871
C2 0.000 0.739 -0.802
C3 0.000 -0.739 -0.802
H4 -0.914 1.244 -1.078
H5 0.914 1.244 -1.078
H6 0.914 -1.244 -1.078
H7 -0.914 -1.244 -1.078

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82831.82832.48602.48602.48602.4860
C21.82831.47711.08041.08042.20082.2008
C31.82831.47712.20082.20081.08041.0804
H42.48601.08042.20081.82773.08792.4889
H52.48601.08042.20081.82772.48893.0879
H62.48602.20081.08043.08792.48891.8277
H72.48602.20081.08042.48893.08791.8277

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.174 S1 C2 H4 115.013
S1 C2 H5 115.013 S1 C3 C2 66.174
S1 C3 H6 115.013 S1 C3 H7 115.013
C2 S1 C3 47.653 C2 C3 H6 117.921
C2 C3 H7 117.921 C3 C2 H4 117.921
C3 C2 H5 117.921 H4 C2 H5 115.530
H6 C3 H7 115.530
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability