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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B1B95/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/Def2TZVPP
 hartrees
Energy at 0K-476.833232
Energy at 298.15K-476.837713
HF Energy-476.833232
Nuclear repulsion energy102.081010
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 B1B95/Def2TZVPP
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 3153 3153 15.77      
2 A1 1494 1494 3.04      
3 A1 1162 1162 1.15      
4 A1 1045 1045 0.85      
5 A1 670 670 23.06      
6 A2 3235 3235 0.00      
7 A2 1191 1191 0.00      
8 A2 904 904 0.00      
9 B1 3249 3249 4.64      
10 B1 965 965 3.89      
11 B1 834 834 0.51      
12 B2 3151 3151 13.29      
13 B2 1469 1469 0.70      
14 B2 1078 1078 26.50      
15 B2 723 723 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 12161.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12161.6 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 B1B95/Def2TZVPP
ABC
0.74366 0.36875 0.27324

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.854
C2 0.000 0.738 -0.784
C3 0.000 -0.738 -0.784
H4 -0.911 1.246 -1.064
H5 0.911 1.246 -1.064
H6 0.911 -1.246 -1.064
H7 -0.911 -1.246 -1.064

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.79711.79712.46242.46242.46242.4624
C21.79711.47581.07981.07982.20072.2007
C31.79711.47582.20072.20071.07981.0798
H42.46241.07982.20071.82143.08652.4918
H52.46241.07982.20071.82142.49183.0865
H62.46242.20071.07983.08652.49181.8214
H72.46242.20071.07982.49183.08651.8214

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.758 S1 C2 H4 115.454
S1 C2 H5 115.454 S1 C3 C2 65.758
S1 C3 H6 115.454 S1 C3 H7 115.454
C2 S1 C3 48.485 C2 C3 H6 118.065
C2 C3 H7 118.065 C3 C2 H4 118.065
C3 C2 H5 118.065 H4 C2 H5 115.001
H6 C3 H7 115.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.142      
2 C -0.148      
3 C -0.148      
4 H 0.110      
5 H 0.110      
6 H 0.110      
7 H 0.110      


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 -1.858 1.858
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.920 0.000 0.000
y 0.000 -24.304 0.000
z 0.000 0.000 -26.140
Traceless
 xyz
x -0.698 0.000 0.000
y 0.000 1.726 0.000
z 0.000 0.000 -1.028
Polar
3z2-r2-2.055
x2-y2-1.616
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.790 0.000 0.000
y 0.000 5.836 0.000
z 0.000 0.000 7.036


<r2> (average value of r2) Å2
<r2> 55.550
(<r2>)1/2 7.453