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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.613241
Energy at 298.15K-476.617720
HF Energy-476.613241
Nuclear repulsion energy101.802228
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 HSEh1PBE/6-311+G(3df,2p)
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 3137 3137 15.56      
2 A1 1491 1491 2.40      
3 A1 1160 1160 0.97      
4 A1 1045 1045 1.09      
5 A1 665 665 23.60      
6 A2 3217 3217 0.00      
7 A2 1191 1191 0.00      
8 A2 903 903 0.00      
9 B1 3232 3232 2.46      
10 B1 965 965 3.41      
11 B1 835 835 0.72      
12 B2 3135 3135 10.28      
13 B2 1465 1465 1.42      
14 B2 1079 1079 22.80      
15 B2 715 715 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 12117.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12117.2 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 HSEh1PBE/6-311+G(3df,2p)
ABC
0.74132 0.36620 0.27168

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.857
C2 0.000 0.738 -0.788
C3 0.000 -0.738 -0.788
H4 -0.913 1.249 -1.066
H5 0.913 1.249 -1.066
H6 0.913 -1.249 -1.066
H7 -0.913 -1.249 -1.066

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80301.80302.46862.46862.46862.4686
C21.80301.47681.08291.08292.20512.2051
C31.80301.47682.20512.20511.08291.0829
H42.46861.08292.20511.82663.09512.4987
H52.46861.08292.20511.82662.49873.0951
H62.46862.20511.08293.09512.49871.8266
H72.46862.20511.08292.49873.09511.8266

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.825 S1 C2 H4 115.325
S1 C2 H5 115.325 S1 C3 C2 65.825
S1 C3 H6 115.325 S1 C3 H7 115.325
C2 S1 C3 48.350 C2 C3 H6 118.153
C2 C3 H7 118.153 C3 C2 H4 118.153
C3 C2 H5 118.153 H4 C2 H5 114.998
H6 C3 H7 114.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.230      
2 C -0.157      
3 C -0.157      
4 H 0.136      
5 H 0.136      
6 H 0.136      
7 H 0.136      


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 -1.896 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.246 0.000 0.000
y 0.000 -24.431 0.000
z 0.000 0.000 -26.394
Traceless
 xyz
x -0.833 0.000 0.000
y 0.000 1.889 0.000
z 0.000 0.000 -1.055
Polar
3z2-r2-2.110
x2-y2-1.815
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.600 0.000 0.000
y 0.000 6.065 0.000
z 0.000 0.000 7.486


<r2> (average value of r2) Å2
<r2> 55.917
(<r2>)1/2 7.478