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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-476.581432
Energy at 298.15K-476.585903
HF Energy-476.438633
Nuclear repulsion energy100.881368
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 B2PLYP/6-311G**
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 3152 3152 14.31      
2 A1 1518 1518 4.75      
3 A1 1159 1159 3.82      
4 A1 1068 1068 0.19      
5 A1 642 642 26.36      
6 A2 3235 3235 0.00      
7 A2 1206 1206 0.00      
8 A2 925 925 0.00      
9 B1 3249 3249 7.00      
10 B1 980 980 9.75      
11 B1 852 852 0.38      
12 B2 3149 3149 12.59      
13 B2 1491 1491 0.73      
14 B2 1100 1100 44.44      
15 B2 674 674 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 12199.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12199.6 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 B2PLYP/6-311G**
ABC
0.73825 0.35599 0.26569

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.870
C2 0.000 0.741 -0.801
C3 0.000 -0.741 -0.801
H4 -0.914 1.250 -1.078
H5 0.914 1.250 -1.078
H6 0.914 -1.250 -1.078
H7 -0.914 -1.250 -1.078

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82781.82782.48862.48862.48862.4886
C21.82781.48101.08281.08282.20832.2083
C31.82781.48102.20832.20831.08281.0828
H42.48861.08282.20831.82873.09822.5009
H52.48861.08282.20831.82872.50093.0982
H62.48862.20831.08283.09822.50091.8287
H72.48862.20831.08282.50093.09821.8287

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.100 S1 C2 H4 115.107
S1 C2 H5 115.107 S1 C3 C2 66.100
S1 C3 H6 115.107 S1 C3 H7 115.107
C2 S1 C3 47.799 C2 C3 H6 118.094
C2 C3 H7 118.094 C3 C2 H4 118.094
C3 C2 H5 118.094 H4 C2 H5 115.212
H6 C3 H7 115.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.027      
2 C -0.303      
3 C -0.303      
4 H 0.158      
5 H 0.158      
6 H 0.158      
7 H 0.158      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.026 0.000 0.000
y 0.000 5.140 0.000
z 0.000 0.000 6.804


<r2> (average value of r2) Å2
<r2> 56.909
(<r2>)1/2 7.544