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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-476.534517
Energy at 298.15K-476.538911
HF Energy-476.534517
Nuclear repulsion energy100.424977
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 PBEPBE/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 3055 3028 16.85      
2 A1 1448 1435 4.69      
3 A1 1128 1118 2.98      
4 A1 1011 1002 0.37      
5 A1 635 629 23.08      
6 A2 3135 3106 0.00      
7 A2 1150 1139 0.00      
8 A2 876 868 0.00      
9 B1 3150 3121 7.76      
10 B1 932 924 10.65      
11 B1 815 808 0.68      
12 B2 3055 3028 14.92      
13 B2 1422 1409 1.20      
14 B2 1031 1022 43.35      
15 B2 660 654 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 11751.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 11644.7 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 PBEPBE/6-311G**
ABC
0.73045 0.35333 0.26363

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.873
C2 0.000 0.743 -0.804
C3 0.000 -0.743 -0.804
H4 -0.921 1.260 -1.081
H5 0.921 1.260 -1.081
H6 0.921 -1.260 -1.081
H7 -0.921 -1.260 -1.081

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83421.83422.50132.50132.50132.5013
C21.83421.48631.09231.09232.22242.2224
C31.83421.48632.22242.22241.09231.0923
H42.50131.09232.22241.84283.12202.5201
H52.50131.09232.22241.84282.52013.1220
H62.50132.22241.09233.12202.52011.8428
H72.50132.22241.09232.52013.12201.8428

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.098 S1 C2 H4 115.086
S1 C2 H5 115.086 S1 C3 C2 66.098
S1 C3 H6 115.086 S1 C3 H7 115.086
C2 S1 C3 47.804 C2 C3 H6 118.243
C2 C3 H7 118.243 C3 C2 H4 118.243
C3 C2 H5 118.243 H4 C2 H5 115.029
H6 C3 H7 115.029
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.009      
2 C -0.347      
3 C -0.347      
4 H 0.176      
5 H 0.176      
6 H 0.176      
7 H 0.176      


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 -2.082 2.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.606 0.000 0.000
y 0.000 -24.675 0.000
z 0.000 0.000 -26.702
Traceless
 xyz
x -0.918 0.000 0.000
y 0.000 1.980 0.000
z 0.000 0.000 -1.062
Polar
3z2-r2-2.124
x2-y2-1.932
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.158 0.000 0.000
y 0.000 5.284 0.000
z 0.000 0.000 6.937


<r2> (average value of r2) Å2
<r2> 57.237
(<r2>)1/2 7.566