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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD=FULL/Def2TZVPP

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=FULL/Def2TZVPP
 hartrees
Energy at 0K-476.350024
Energy at 298.15K-476.354516
HF Energy-475.607663
Nuclear repulsion energy101.616346
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=FULL/Def2TZVPP
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 3171 3171 12.31      
2 A1 1529 1529 2.94      
3 A1 1159 1159 1.81      
4 A1 1067 1067 0.65      
5 A1 659 659 23.37      
6 A2 3249 3249 0.00      
7 A2 1214 1214 0.00      
8 A2 924 924 0.00      
9 B1 3265 3265 3.86      
10 B1 985 985 3.33      
11 B1 850 850 0.29      
12 B2 3164 3164 10.10      
13 B2 1502 1502 0.43      
14 B2 1102 1102 27.12      
15 B2 707 707 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 12274.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12274.3 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 CCSD=FULL/Def2TZVPP
ABC
0.74013 0.36406 0.27020

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.860
C2 0.000 0.741 -0.790
C3 0.000 -0.741 -0.790
H4 -0.911 1.245 -1.070
H5 0.911 1.245 -1.070
H6 0.911 -1.245 -1.070
H7 -0.911 -1.245 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80921.80922.47042.47042.47042.4704
C21.80921.48231.07781.07782.20272.2027
C31.80921.48232.20272.20271.07781.0778
H42.47041.07782.20271.82213.08522.4897
H52.47041.07782.20271.82212.48973.0852
H62.47042.20271.07783.08522.48971.8221
H72.47042.20271.07782.48973.08521.8221

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.817 S1 C2 H4 115.323
S1 C2 H5 115.323 S1 C3 C2 65.817
S1 C3 H6 115.323 S1 C3 H7 115.323
C2 S1 C3 48.366 C2 C3 H6 117.860
C2 C3 H7 117.860 C3 C2 H4 117.860
C3 C2 H5 117.860 H4 C2 H5 115.407
H6 C3 H7 115.407
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability