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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CCSD=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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-476.222886
Energy at 298.15K-476.227389
HF Energy-475.611095
Nuclear repulsion energy101.581554
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/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 3187 3022 12.28      
2 A1 1531 1451 2.75      
3 A1 1167 1107 2.00      
4 A1 1073 1018 0.79      
5 A1 662 628 22.98      
6 A2 3247 3079 0.00      
7 A2 1220 1157 0.00      
8 A2 919 872 0.00      
9 B1 3262 3093 3.74      
10 B1 983 932 3.02      
11 B1 848 804 0.31      
12 B2 3182 3017 10.75      
13 B2 1504 1426 0.57      
14 B2 1107 1050 25.77      
15 B2 707 671 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 12301.2 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 11662.8 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/cc-pVTZ
ABC
0.74322 0.36258 0.26970

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=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 0.738 -0.793
C3 0.000 -0.738 -0.793
H4 -0.908 1.244 -1.070
H5 0.908 1.244 -1.070
H6 0.908 -1.244 -1.070
H7 -0.908 -1.244 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81241.81242.47122.47122.47122.4712
C21.81241.47671.07611.07612.19822.1982
C31.81241.47672.19822.19821.07611.0761
H42.47121.07612.19821.81703.08102.4882
H52.47121.07612.19821.81702.48823.0810
H62.47122.19821.07613.08102.48821.8170
H72.47122.19821.07612.48823.08101.8170

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.960 S1 C2 H4 115.250
S1 C2 H5 115.250 S1 C3 C2 65.960
S1 C3 H6 115.250 S1 C3 H7 115.250
C2 S1 C3 48.080 C2 C3 H6 118.037
C2 C3 H7 118.037 C3 C2 H4 118.037
C3 C2 H5 118.037 H4 C2 H5 115.189
H6 C3 H7 115.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability