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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/TZVP
 hartrees
Energy at 0K-476.602584
Energy at 298.15K-476.607055
HF Energy-476.602584
Nuclear repulsion energy101.160280
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/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 3146 3020 12.81      
2 A1 1499 1439 3.41      
3 A1 1160 1114 2.74      
4 A1 1050 1008 0.75      
5 A1 660 634 26.45      
6 A2 3229 3101 0.00      
7 A2 1194 1147 0.00      
8 A2 900 864 0.00      
9 B1 3244 3114 4.74      
10 B1 962 924 4.87      
11 B1 842 808 0.64      
12 B2 3144 3019 11.44      
13 B2 1471 1413 1.43      
14 B2 1076 1033 47.69      
15 B2 698 671 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 12137.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 11653.5 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/TZVP
ABC
0.74083 0.35860 0.26748

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.867
C2 0.000 0.738 -0.798
C3 0.000 -0.738 -0.798
H4 -0.914 1.250 -1.074
H5 0.914 1.250 -1.074
H6 0.914 -1.250 -1.074
H7 -0.914 -1.250 -1.074

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82081.82082.48312.48312.48312.4831
C21.82081.47661.08381.08382.20622.2062
C31.82081.47662.20622.20621.08381.0838
H42.48311.08382.20621.82873.09812.5008
H52.48311.08382.20621.82872.50083.0981
H62.48312.20621.08383.09812.50081.8287
H72.48312.20621.08382.50083.09811.8287

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.079 S1 C2 H4 115.125
S1 C2 H5 115.125 S1 C3 C2 66.079
S1 C3 H6 115.125 S1 C3 H7 115.125
C2 S1 C3 47.842 C2 C3 H6 118.199
C2 C3 H7 118.199 C3 C2 H4 118.199
C3 C2 H5 118.199 H4 C2 H5 115.055
H6 C3 H7 115.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.101      
2 C -0.293      
3 C -0.293      
4 H 0.172      
5 H 0.172      
6 H 0.172      
7 H 0.172      


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 -2.094 2.094
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.113 0.000 0.000
y 0.000 -24.343 0.000
z 0.000 0.000 -26.333
Traceless
 xyz
x -0.775 0.000 0.000
y 0.000 1.880 0.000
z 0.000 0.000 -1.105
Polar
3z2-r2-2.210
x2-y2-1.770
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.407 0.000 0.000
y 0.000 5.635 0.000
z 0.000 0.000 6.859


<r2> (average value of r2) Å2
<r2> 56.394
(<r2>)1/2 7.510