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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: BLYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-476.786033
Energy at 298.15K-476.790361
HF Energy-476.786033
Nuclear repulsion energy99.805467
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 BLYP/daug-cc-pVTZ
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 3047 3047 17.98      
2 A1 1456 1456 3.14      
3 A1 1102 1102 1.70      
4 A1 1011 1011 0.58      
5 A1 586 586 22.81      
6 A2 3119 3119 0.00      
7 A2 1168 1168 0.00      
8 A2 870 870 0.00      
9 B1 3134 3134 5.41      
10 B1 920 920 3.69      
11 B1 815 815 0.37      
12 B2 3048 3048 14.19      
13 B2 1439 1439 0.56      
14 B2 1037 1037 21.56      
15 B2 614 614 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 11682.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11682.6 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 BLYP/daug-cc-pVTZ
ABC
0.73144 0.34547 0.25911

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.884
C2 0.000 0.743 -0.816
C3 0.000 -0.743 -0.816
H4 -0.917 1.261 -1.086
H5 0.917 1.261 -1.086
H6 0.917 -1.261 -1.086
H7 -0.917 -1.261 -1.086

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.85521.85522.51212.51212.51212.5121
C21.85521.48571.08751.08752.22042.2204
C31.85521.48572.22042.22041.08751.0875
H42.51211.08752.22041.83463.11892.5223
H52.51211.08752.22041.83462.52233.1189
H62.51212.22041.08753.11892.52231.8346
H72.51212.22041.08752.52233.11891.8346

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.396 S1 C2 H4 114.702
S1 C2 H5 114.702 S1 C3 C2 66.396
S1 C3 H6 114.702 S1 C3 H7 114.702
C2 S1 C3 47.209 C2 C3 H6 118.462
C2 C3 H7 118.462 C3 C2 H4 118.462
C3 C2 H5 118.462 H4 C2 H5 115.019
H6 C3 H7 115.019
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.273      
2 C -0.421      
3 C -0.421      
4 H 0.279      
5 H 0.279      
6 H 0.279      
7 H 0.279      


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 -1.940 1.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.740 0.000 0.000
y 0.000 -24.942 0.000
z 0.000 0.000 -26.750
Traceless
 xyz
x -0.893 0.000 0.000
y 0.000 1.802 0.000
z 0.000 0.000 -0.909
Polar
3z2-r2-1.818
x2-y2-1.797
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.211 0.000 0.000
y 0.000 6.657 0.000
z 0.000 0.000 8.305


<r2> (average value of r2) Å2
<r2> 57.884
(<r2>)1/2 7.608