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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-476.771152
Energy at 298.15K-476.775615
HF Energy-476.771152
Nuclear repulsion energy101.383965
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 B3PW91/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 3129 3009 15.38      
2 A1 1489 1432 2.98      
3 A1 1152 1107 1.40      
4 A1 1042 1002 0.98      
5 A1 653 628 23.69      
6 A2 3209 3085 0.00      
7 A2 1191 1145 0.00      
8 A2 900 866 0.00      
9 B1 3223 3099 4.59      
10 B1 958 921 3.87      
11 B1 834 802 0.51      
12 B2 3128 3008 13.77      
13 B2 1465 1409 1.01      
14 B2 1073 1032 25.27      
15 B2 696 669 0.54      

Unscaled Zero Point Vibrational Energy (zpe) 12069.7 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 11606.2 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 B3PW91/cc-pVTZ
ABC
0.74033 0.36143 0.26892

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.739 -0.794
C3 0.000 -0.739 -0.794
H4 -0.913 1.251 -1.071
H5 0.913 1.251 -1.071
H6 0.913 -1.251 -1.071
H7 -0.913 -1.251 -1.071

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81451.81452.47762.47762.47762.4776
C21.81451.47761.08291.08292.20672.2067
C31.81451.47762.20672.20671.08291.0829
H42.47761.08292.20671.82663.09762.5017
H52.47761.08292.20671.82662.50173.0976
H62.47762.20671.08293.09762.50171.8266
H72.47762.20671.08292.50173.09761.8266

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.972 S1 C2 H4 115.198
S1 C2 H5 115.198 S1 C3 C2 65.972
S1 C3 H6 115.198 S1 C3 H7 115.198
C2 S1 C3 48.055 C2 C3 H6 118.217
C2 C3 H7 118.217 C3 C2 H4 118.217
C3 C2 H5 118.217 H4 C2 H5 114.992
H6 C3 H7 114.992
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.148      
2 C -0.169      
3 C -0.169      
4 H 0.122      
5 H 0.122      
6 H 0.122      
7 H 0.122      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.945 1.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.961 0.000 0.000
y 0.000 -24.328 0.000
z 0.000 0.000 -26.158
Traceless
 xyz
x -0.718 0.000 0.000
y 0.000 1.731 0.000
z 0.000 0.000 -1.014
Polar
3z2-r2-2.027
x2-y2-1.633
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.636 0.000 0.000
y 0.000 5.660 0.000
z 0.000 0.000 7.071


<r2> (average value of r2) Å2
<r2> 56.134
(<r2>)1/2 7.492