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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBE1PBE/6-31G

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/6-31G
 hartrees
Energy at 0K-476.481033
Energy at 298.15K-476.485452
HF Energy-476.481033
Nuclear repulsion energy98.390663
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/6-31G
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 3204 3063 4.13      
2 A1 1533 1466 2.02      
3 A1 1178 1126 2.34      
4 A1 1090 1042 4.78      
5 A1 610 583 23.42      
6 A2 3295 3150 0.00      
7 A2 1229 1175 0.00      
8 A2 906 866 0.00      
9 B1 3312 3166 3.18      
10 B1 942 901 5.40      
11 B1 867 829 1.74      
12 B2 3200 3058 4.68      
13 B2 1511 1444 6.52      
14 B2 1121 1071 45.34      
15 B2 626 598 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 12311.5 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 11768.5 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/6-31G
ABC
0.73746 0.32717 0.24926

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.909
C2 0.000 0.738 -0.845
C3 0.000 -0.738 -0.845
H4 -0.915 1.260 -1.101
H5 0.915 1.260 -1.101
H6 0.915 -1.260 -1.101
H7 -0.915 -1.260 -1.101

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.90341.90342.54292.54292.54292.5429
C21.90341.47671.08401.08402.21262.2126
C31.90341.47672.21262.21261.08401.0840
H42.54291.08402.21261.83053.11422.5195
H52.54291.08402.21261.83052.51953.1142
H62.54292.21261.08403.11422.51951.8305
H72.54292.21261.08402.51953.11421.8305

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 67.175 S1 C2 H4 113.848
S1 C2 H5 113.848 S1 C3 C2 67.175
S1 C3 H6 113.848 S1 C3 H7 113.848
C2 S1 C3 45.650 C2 C3 H6 118.749
C2 C3 H7 118.749 C3 C2 H4 118.749
C3 C2 H5 118.749 H4 C2 H5 115.196
H6 C3 H7 115.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.108      
2 C -0.505      
3 C -0.505      
4 H 0.225      
5 H 0.225      
6 H 0.225      
7 H 0.225      


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 -2.502 2.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.166 0.000 0.000
y 0.000 -24.248 0.000
z 0.000 0.000 -26.643
Traceless
 xyz
x -0.721 0.000 0.000
y 0.000 2.157 0.000
z 0.000 0.000 -1.436
Polar
3z2-r2-2.872
x2-y2-1.919
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.711 0.000 0.000
y 0.000 4.746 0.000
z 0.000 0.000 6.599


<r2> (average value of r2) Å2
<r2> 58.933
(<r2>)1/2 7.677