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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP4/aug-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 MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-476.194058
Energy at 298.15K-476.198488
HF Energy-475.611537
Nuclear repulsion energy100.683647
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/aug-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 3133 3049        
2 A1 1495 1455        
3 A1 1134 1104        
4 A1 1041 1013        
5 A1 632 616        
6 A2 3219 3133        
7 A2 1191 1159        
8 A2 893 869        
9 B1 3233 3147        
10 B1 950 924        
11 B1 827 805        
12 B2 3130 3046        
13 B2 1469 1430        
14 B2 1062 1033        
15 B2 666 648        

Unscaled Zero Point Vibrational Energy (zpe) 12037.3 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 11714.7 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/aug-cc-pVTZ
ABC
0.73445 0.35470 0.26469

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.871
C2 0.000 0.743 -0.804
C3 0.000 -0.743 -0.804
H4 -0.918 1.252 -1.073
H5 0.918 1.252 -1.073
H6 0.918 -1.252 -1.073
H7 -0.918 -1.252 -1.073

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83271.83272.48762.48762.48762.4876
C21.83271.48561.08321.08322.21192.2119
C31.83271.48562.21192.21191.08321.0832
H42.48761.08322.21191.83553.10422.5034
H52.48761.08322.21191.83552.50343.1042
H62.48762.21191.08323.10422.50341.8355
H72.48762.21191.08322.50343.10421.8355

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.091 S1 C2 H4 114.648
S1 C2 H5 114.648 S1 C3 C2 66.091
S1 C3 H6 114.648 S1 C3 H7 114.648
C2 S1 C3 47.819 C2 C3 H6 118.024
C2 C3 H7 118.024 C3 C2 H4 118.024
C3 C2 H5 118.024 H4 C2 H5 115.823
H6 C3 H7 115.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability