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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: LSDA/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 LSDA/6-311G**
 hartrees
Energy at 0K-475.339062
Energy at 298.15K-475.343479
HF Energy-475.339062
Nuclear repulsion energy101.424083
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 LSDA/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 3057 3019 11.49      
2 A1 1429 1411 2.67      
3 A1 1152 1138 2.51      
4 A1 1001 988 1.45      
5 A1 663 655 20.13      
6 A2 3140 3102 0.00      
7 A2 1137 1123 0.00      
8 A2 870 859 0.00      
9 B1 3154 3115 1.32      
10 B1 930 919 12.40      
11 B1 812 802 1.21      
12 B2 3057 3019 7.45      
13 B2 1398 1381 4.25      
14 B2 1026 1013 49.51      
15 B2 690 682 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 11757.8 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 11613.2 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 LSDA/6-311G**
ABC
0.74133 0.36197 0.26991

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.736 -0.792
C3 0.000 -0.736 -0.792
H4 -0.922 1.251 -1.073
H5 0.922 1.251 -1.073
H6 0.922 -1.251 -1.073
H7 -0.922 -1.251 -1.073

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81011.81012.48192.48192.48192.4819
C21.81011.47231.09291.09292.20842.2084
C31.81011.47232.20842.20841.09291.0929
H42.48191.09292.20841.84423.10782.5014
H52.48191.09292.20841.84422.50143.1078
H62.48192.20841.09293.10782.50141.8442
H72.48192.20841.09292.50143.10781.8442

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.003 S1 C2 H4 115.269
S1 C2 H5 115.269 S1 C3 C2 66.003
S1 C3 H6 115.269 S1 C3 H7 115.269
C2 S1 C3 47.993 C2 C3 H6 118.088
C2 C3 H7 118.088 C3 C2 H4 118.088
C3 C2 H5 118.088 H4 C2 H5 115.078
H6 C3 H7 115.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.028      
2 C -0.420      
3 C -0.420      
4 H 0.203      
5 H 0.203      
6 H 0.203      
7 H 0.203      


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 -2.020 2.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.532 0.000 0.000
y 0.000 -24.708 0.000
z 0.000 0.000 -26.780
Traceless
 xyz
x -0.788 0.000 0.000
y 0.000 1.948 0.000
z 0.000 0.000 -1.160
Polar
3z2-r2-2.319
x2-y2-1.824
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.157 0.000 0.000
y 0.000 5.247 0.000
z 0.000 0.000 6.837


<r2> (average value of r2) Å2
<r2> 56.422
(<r2>)1/2 7.511