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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-476.834482
Energy at 298.15K-476.838904
HF Energy-476.834482
Nuclear repulsion energy100.404941
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 B3LYP/TZVP
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 3127 3019 13.54      
2 A1 1503 1451 3.80      
3 A1 1142 1102 3.53      
4 A1 1048 1012 0.51      
5 A1 620 599 26.99      
6 A2 3206 3095 0.00      
7 A2 1200 1158 0.00      
8 A2 894 863 0.00      
9 B1 3221 3110 6.88      
10 B1 952 919 4.82      
11 B1 843 814 0.46      
12 B2 3127 3018 13.59      
13 B2 1479 1428 0.92      
14 B2 1074 1037 47.03      
15 B2 652 629 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 12043.9 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 11627.2 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 B3LYP/TZVP
ABC
0.73965 0.34991 0.26238

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.878
C2 0.000 0.739 -0.810
C3 0.000 -0.739 -0.810
H4 -0.913 1.253 -1.082
H5 0.913 1.253 -1.082
H6 0.913 -1.253 -1.082
H7 -0.913 -1.253 -1.082

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84271.84272.49952.49952.49952.4995
C21.84271.47751.08281.08282.20822.2082
C31.84271.47752.20822.20821.08281.0828
H42.49951.08282.20821.82593.10122.5067
H52.49951.08282.20821.82592.50673.1012
H62.49952.20821.08283.10122.50671.8259
H72.49952.20821.08282.50673.10121.8259

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.364 S1 C2 H4 114.892
S1 C2 H5 114.892 S1 C3 C2 66.364
S1 C3 H6 114.892 S1 C3 H7 114.892
C2 S1 C3 47.271 C2 C3 H6 118.375
C2 C3 H7 118.375 C3 C2 H4 118.375
C3 C2 H5 118.375 H4 C2 H5 114.949
H6 C3 H7 114.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.097      
2 C -0.278      
3 C -0.278      
4 H 0.163      
5 H 0.163      
6 H 0.163      
7 H 0.163      


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 -2.108 2.108
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.363 0.000 0.000
y 0.000 -24.565 0.000
z 0.000 0.000 -26.471
Traceless
 xyz
x -0.845 0.000 0.000
y 0.000 1.852 0.000
z 0.000 0.000 -1.008
Polar
3z2-r2-2.015
x2-y2-1.798
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.440 0.000 0.000
y 0.000 5.702 0.000
z 0.000 0.000 7.036


<r2> (average value of r2) Å2
<r2> 57.177
(<r2>)1/2 7.562