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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBEultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-311G*
 hartrees
Energy at 0K-476.528351
Energy at 298.15K-476.532745
HF Energy-476.528351
Nuclear repulsion energy100.401144
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 PBEPBEultrafine/6-311G*
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 3053 3021 20.07      
2 A1 1462 1447 4.83      
3 A1 1133 1121 3.16      
4 A1 1015 1005 0.40      
5 A1 634 628 23.34      
6 A2 3132 3099 0.00      
7 A2 1161 1149 0.00      
8 A2 885 876 0.00      
9 B1 3147 3114 11.60      
10 B1 942 932 12.19      
11 B1 822 814 0.65      
12 B2 3052 3021 19.18      
13 B2 1436 1421 1.03      
14 B2 1033 1022 46.66      
15 B2 658 651 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 11781.9 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 11659.4 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 PBEPBEultrafine/6-311G*
ABC
0.73057 0.35305 0.26346

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.874
C2 0.000 0.743 -0.804
C3 0.000 -0.743 -0.804
H4 -0.921 1.261 -1.082
H5 0.921 1.261 -1.082
H6 0.921 -1.261 -1.082
H7 -0.921 -1.261 -1.082

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.83471.83472.50282.50282.50282.5028
C21.83471.48561.09281.09282.22312.2231
C31.83471.48562.22312.22311.09281.0928
H42.50281.09282.22311.84173.12352.5228
H52.50281.09282.22311.84172.52283.1235
H62.50282.22311.09283.12352.52281.8417
H72.50282.22311.09282.52283.12351.8417

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.117 S1 C2 H4 115.143
S1 C2 H5 115.143 S1 C3 C2 66.117
S1 C3 H6 115.143 S1 C3 H7 115.143
C2 S1 C3 47.766 C2 C3 H6 118.328
C2 C3 H7 118.328 C3 C2 H4 118.328
C3 C2 H5 118.328 H4 C2 H5 114.838
H6 C3 H7 114.838
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.023      
2 C -0.526      
3 C -0.526      
4 H 0.257      
5 H 0.257      
6 H 0.257      
7 H 0.257      


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 -2.110 2.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.602 0.000 0.000
y 0.000 -24.697 0.000
z 0.000 0.000 -26.715
Traceless
 xyz
x -0.896 0.000 0.000
y 0.000 1.962 0.000
z 0.000 0.000 -1.066
Polar
3z2-r2-2.131
x2-y2-1.905
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.110 0.000 0.000
y 0.000 5.231 0.000
z 0.000 0.000 6.887


<r2> (average value of r2) Å2
<r2> 57.271
(<r2>)1/2 7.568