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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CID/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.087381
Energy at 298.15K-476.091933
HF Energy-475.613096
Nuclear repulsion energy102.029659
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 CID/cc-pV(T+d)Z
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 3240 3240 12.43      
2 A1 1563 1563 2.92      
3 A1 1191 1191 1.70      
4 A1 1096 1096 0.69      
5 A1 679 679 27.52      
6 A2 3322 3322 0.00      
7 A2 1246 1246 0.00      
8 A2 943 943 0.00      
9 B1 3336 3336 3.49      
10 B1 1008 1008 2.97      
11 B1 865 865 0.36      
12 B2 3235 3235 10.74      
13 B2 1533 1533 0.56      
14 B2 1139 1139 25.82      
15 B2 738 738 1.12      

Unscaled Zero Point Vibrational Energy (zpe) 12566.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12566.3 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 CID/cc-pV(T+d)Z
ABC
0.74519 0.36740 0.27246

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.856
C2 0.000 0.738 -0.787
C3 0.000 -0.738 -0.787
H4 -0.907 1.242 -1.065
H5 0.907 1.242 -1.065
H6 0.907 -1.242 -1.065
H7 -0.907 -1.242 -1.065

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80111.80112.46122.46122.46122.4612
C21.80111.47671.07441.07442.19612.1961
C31.80111.47672.19612.19611.07441.0744
H42.46121.07442.19611.81433.07632.4843
H52.46121.07442.19611.81432.48433.0763
H62.46122.19611.07443.07632.48431.8143
H72.46122.19611.07442.48433.07631.8143

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.798 S1 C2 H4 115.385
S1 C2 H5 115.385 S1 C3 C2 65.798
S1 C3 H6 115.385 S1 C3 H7 115.385
C2 S1 C3 48.404 C2 C3 H6 117.964
C2 C3 H7 117.964 C3 C2 H4 117.964
C3 C2 H5 117.964 H4 C2 H5 115.201
H6 C3 H7 115.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability