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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.590226
Energy at 298.15K-476.594706
HF Energy-476.590226
Nuclear repulsion energy101.815764
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 PBE1PBE/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 15.11      
2 A1 1490 1490 2.35      
3 A1 1161 1161 0.96      
4 A1 1045 1045 1.12      
5 A1 667 667 23.50      
6 A2 3218 3218 0.00      
7 A2 1190 1190 0.00      
8 A2 903 903 0.00      
9 B1 3233 3233 2.19      
10 B1 965 965 3.37      
11 B1 834 834 0.74      
12 B2 3135 3135 9.83      
13 B2 1464 1464 1.47      
14 B2 1078 1078 22.75      
15 B2 717 717 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 12118.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12118.5 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 PBE1PBE/6-311+G(3df,2p)
ABC
0.74102 0.36647 0.27182

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 0.739 -0.787
C3 0.000 -0.739 -0.787
H4 -0.914 1.249 -1.066
H5 0.914 1.249 -1.066
H6 0.914 -1.249 -1.066
H7 -0.914 -1.249 -1.066

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80241.80242.46832.46832.46832.4683
C21.80241.47711.08321.08322.20552.2055
C31.80241.47712.20552.20551.08321.0832
H42.46831.08322.20551.82743.09562.4987
H52.46831.08322.20551.82742.49873.0956
H62.46832.20551.08323.09562.49871.8274
H72.46832.20551.08322.49873.09561.8274

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.810 S1 C2 H4 115.325
S1 C2 H5 115.325 S1 C3 C2 65.810
S1 C3 H6 115.325 S1 C3 H7 115.325
C2 S1 C3 48.380 C2 C3 H6 118.134
C2 C3 H7 118.134 C3 C2 H4 118.134
C3 C2 H5 118.134 H4 C2 H5 115.030
H6 C3 H7 115.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.233      
2 C -0.142      
3 C -0.142      
4 H 0.129      
5 H 0.129      
6 H 0.129      
7 H 0.129      


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 -1.898 1.898
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.229 0.000 0.000
y 0.000 -24.418 0.000
z 0.000 0.000 -26.383
Traceless
 xyz
x -0.828 0.000 0.000
y 0.000 1.888 0.000
z 0.000 0.000 -1.059
Polar
3z2-r2-2.119
x2-y2-1.811
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.595 0.000 0.000
y 0.000 6.060 0.000
z 0.000 0.000 7.472


<r2> (average value of r2) Å2
<r2> 55.895
(<r2>)1/2 7.476