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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD(T)=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 CCSD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.382405
Energy at 298.15K-476.386868
HF Energy-475.604747
Nuclear repulsion energy101.342304
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 CCSD(T)=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 3144 3144        
2 A1 1508 1508        
3 A1 1149 1149        
4 A1 1051 1051        
5 A1 649 649        
6 A2 3228 3228        
7 A2 1199 1199        
8 A2 909 909        
9 B1 3242 3242        
10 B1 969 969        
11 B1 836 836        
12 B2 3140 3140        
13 B2 1480 1480        
14 B2 1081 1081        
15 B2 687 687        

Unscaled Zero Point Vibrational Energy (zpe) 12136.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12136.6 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 CCSD(T)=FULL/6-311+G(3df,2p)
ABC
0.73774 0.36165 0.26876

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.741 -0.794
C3 0.000 -0.741 -0.794
H4 -0.914 1.249 -1.071
H5 0.914 1.249 -1.071
H6 0.914 -1.249 -1.071
H7 -0.914 -1.249 -1.071

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81471.81472.47702.47702.47702.4770
C21.81471.48271.08191.08192.20792.2079
C31.81471.48272.20792.20791.08191.0819
H42.47701.08192.20791.82863.09592.4981
H52.47701.08192.20791.82862.49813.0959
H62.47702.20791.08193.09592.49811.8286
H72.47702.20791.08192.49813.09591.8286

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.888 S1 C2 H4 115.193
S1 C2 H5 115.193 S1 C3 C2 65.888
S1 C3 H6 115.193 S1 C3 H7 115.193
C2 S1 C3 48.225 C2 C3 H6 117.985
C2 C3 H7 117.985 C3 C2 H4 117.985
C3 C2 H5 117.985 H4 C2 H5 115.353
H6 C3 H7 115.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability