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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP4=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP4=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.384298
Energy at 298.15K-476.388755
HF Energy-475.604684
Nuclear repulsion energy101.249166
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 MP4=FULL/6-311+G(3df,2p)
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 3140 3140        
2 A1 1504 1504        
3 A1 1148 1148        
4 A1 1049 1049        
5 A1 645 645        
6 A2 3227 3227        
7 A2 1196 1196        
8 A2 909 909        
9 B1 3240 3240        
10 B1 966 966        
11 B1 834 834        
12 B2 3136 3136        
13 B2 1478 1478        
14 B2 1077 1077        
15 B2 684 684        

Unscaled Zero Point Vibrational Energy (zpe) 12115.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12115.9 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 MP4=FULL/6-311+G(3df,2p)
ABC
0.73801 0.36046 0.26818

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.864
C2 0.000 0.741 -0.795
C3 0.000 -0.741 -0.795
H4 -0.915 1.250 -1.071
H5 0.915 1.250 -1.071
H6 0.915 -1.250 -1.071
H7 -0.915 -1.250 -1.071

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81751.81752.47862.47862.47862.4786
C21.81751.48161.08251.08252.20802.2080
C31.81751.48162.20802.20801.08251.0825
H42.47861.08252.20801.82983.09762.4994
H52.47861.08252.20801.82982.49943.0976
H62.47862.20801.08253.09762.49941.8298
H72.47862.20801.08252.49943.09761.8298

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.946 S1 C2 H4 115.082
S1 C2 H5 115.082 S1 C3 C2 65.946
S1 C3 H6 115.082 S1 C3 H7 115.082
C2 S1 C3 48.107 C2 C3 H6 118.041
C2 C3 H7 118.041 C3 C2 H4 118.041
C3 C2 H5 118.041 H4 C2 H5 115.378
H6 C3 H7 115.378
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability