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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBE1PBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-476.540317
Energy at 298.15K-476.544799
HF Energy-476.540317
Nuclear repulsion energy101.292036
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/6-31+G**
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 3159 3018 11.98      
2 A1 1507 1439 4.38      
3 A1 1169 1117 3.16      
4 A1 1057 1009 1.35      
5 A1 672 642 26.87      
6 A2 3245 3100 0.00      
7 A2 1192 1139 0.00      
8 A2 912 871 0.00      
9 B1 3257 3112 2.95      
10 B1 971 928 4.34      
11 B1 841 803 1.17      
12 B2 3158 3016 9.74      
13 B2 1475 1409 1.19      
14 B2 1087 1038 41.92      
15 B2 712 680 1.31      

Unscaled Zero Point Vibrational Energy (zpe) 12206.8 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 11661.1 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/6-31+G**
ABC
0.73682 0.36159 0.26871

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.741 -0.793
C3 0.000 -0.741 -0.793
H4 -0.916 1.254 -1.074
H5 0.916 1.254 -1.074
H6 0.916 -1.254 -1.074
H7 -0.916 -1.254 -1.074

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81371.81372.48232.48232.48232.4823
C21.81371.48111.08691.08692.21242.2124
C31.81371.48112.21242.21241.08691.0869
H42.48231.08692.21241.83193.10522.5073
H52.48231.08692.21241.83192.50733.1052
H62.48232.21241.08693.10522.50731.8319
H72.48232.21241.08692.50733.10521.8319

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.902 S1 C2 H4 115.396
S1 C2 H5 115.396 S1 C3 C2 65.902
S1 C3 H6 115.396 S1 C3 H7 115.396
C2 S1 C3 48.195 C2 C3 H6 118.173
C2 C3 H7 118.173 C3 C2 H4 118.173
C3 C2 H5 118.173 H4 C2 H5 114.859
H6 C3 H7 114.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.047      
2 C -0.387      
3 C -0.387      
4 H 0.205      
5 H 0.205      
6 H 0.205      
7 H 0.205      


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 -2.130 2.130
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.306 0.000 0.000
y 0.000 -24.381 0.000
z 0.000 0.000 -26.595
Traceless
 xyz
x -0.818 0.000 0.000
y 0.000 2.070 0.000
z 0.000 0.000 -1.252
Polar
3z2-r2-2.503
x2-y2-1.925
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.963 0.000 0.000
y 0.000 5.413 0.000
z 0.000 0.000 6.859


<r2> (average value of r2) Å2
<r2> 56.380
(<r2>)1/2 7.509