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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: HF/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/daug-cc-pVDZ
 hartrees
Energy at 0K-475.578063
Energy at 298.15K-475.582629
HF Energy-475.578063
Nuclear repulsion energy101.140904
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 HF/daug-cc-pVDZ
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 3290 3000 19.17      
2 A1 1612 1470 2.71      
3 A1 1221 1114 3.38      
4 A1 1128 1029 0.04      
5 A1 659 601 48.05      
6 A2 3374 3077 0.00      
7 A2 1289 1176 0.00      
8 A2 959 875 0.00      
9 B1 3391 3092 4.74      
10 B1 1030 940 2.14      
11 B1 884 806 0.57      
12 B2 3283 2994 14.88      
13 B2 1573 1435 0.68      
14 B2 1175 1071 26.88      
15 B2 719 656 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 12792.5 cm-1
Scaled (by 0.912) Zero Point Vibrational Energy (zpe) 11666.7 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 HF/daug-cc-pVDZ
ABC
0.74373 0.35727 0.26695

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.868
C2 0.000 0.737 -0.801
C3 0.000 -0.737 -0.801
H4 -0.912 1.249 -1.070
H5 0.912 1.249 -1.070
H6 0.912 -1.249 -1.070
H7 -0.912 -1.249 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82491.82492.47942.47942.47942.4794
C21.82491.47371.07961.07962.20122.2012
C31.82491.47372.20122.20121.07961.0796
H42.47941.07962.20121.82363.09212.4971
H52.47941.07962.20121.82362.49713.0921
H62.47942.20121.07963.09212.49711.8236
H72.47942.20121.07962.49713.09211.8236

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.186 S1 C2 H4 114.782
S1 C2 H5 114.782 S1 C3 C2 66.186
S1 C3 H6 114.782 S1 C3 H7 114.782
C2 S1 C3 47.627 C2 C3 H6 118.294
C2 C3 H7 118.294 C3 C2 H4 118.294
C3 C2 H5 118.294 H4 C2 H5 115.257
H6 C3 H7 115.257
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.171      
2 C 1.196      
3 C 1.196      
4 H -0.555      
5 H -0.555      
6 H -0.555      
7 H -0.555      


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 -2.296 2.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.640 0.000 0.000
y 0.000 -24.621 0.000
z 0.000 0.000 -26.710
Traceless
 xyz
x -0.974 0.000 0.000
y 0.000 2.054 0.000
z 0.000 0.000 -1.080
Polar
3z2-r2-2.160
x2-y2-2.019
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.541 0.000 0.000
y 0.000 6.130 0.000
z 0.000 0.000 7.668


<r2> (average value of r2) Å2
<r2> 56.657
(<r2>)1/2 7.527