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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVTZ
 hartrees
Energy at 0K-476.222608
Energy at 298.15K-476.227118
HF Energy-475.611111
Nuclear repulsion energy101.615666
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/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 3214 2997 10.51      
2 A1 1533 1430 2.47      
3 A1 1170 1091 1.89      
4 A1 1074 1002 1.12      
5 A1 668 623 21.77      
6 A2 3277 3056 0.00      
7 A2 1223 1140 0.00      
8 A2 921 859 0.00      
9 B1 3292 3070 2.73      
10 B1 985 918 3.07      
11 B1 851 793 0.34      
12 B2 3209 2993 8.96      
13 B2 1506 1405 0.71      
14 B2 1106 1031 25.40      
15 B2 712 664 1.20      

Unscaled Zero Point Vibrational Energy (zpe) 12370.0 cm-1
Scaled (by 0.9326) Zero Point Vibrational Energy (zpe) 11536.3 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 MP3=FULL/cc-pVTZ
ABC
0.74378 0.36271 0.26981

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.739 -0.793
C3 0.000 -0.739 -0.793
H4 -0.909 1.242 -1.067
H5 0.909 1.242 -1.067
H6 0.909 -1.242 -1.067
H7 -0.909 -1.242 -1.067

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81281.81282.46762.46762.46762.4676
C21.81281.47871.07401.07402.19672.1967
C31.81281.47872.19672.19671.07401.0740
H42.46761.07402.19671.81783.07752.4833
H52.46761.07402.19671.81782.48333.0775
H62.46762.19671.07403.07752.48331.8178
H72.46762.19671.07402.48333.07751.8178

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.929 S1 C2 H4 115.061
S1 C2 H5 115.061 S1 C3 C2 65.929
S1 C3 H6 115.061 S1 C3 H7 115.061
C2 S1 C3 48.141 C2 C3 H6 117.884
C2 C3 H7 117.884 C3 C2 H4 117.884
C3 C2 H5 117.884 H4 C2 H5 115.626
H6 C3 H7 115.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability