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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-476.718447
Energy at 298.15K-476.722923
HF Energy-476.718447
Nuclear repulsion energy101.582793
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 M06-2X/6-31G(2df,p)
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 3148 2999 8.53      
2 A1 1495 1424 4.32      
3 A1 1169 1113 1.65      
4 A1 1048 998 0.20      
5 A1 667 635 23.77      
6 A2 3236 3082 0.00      
7 A2 1188 1132 0.00      
8 A2 895 853 0.00      
9 B1 3249 3094 1.53      
10 B1 961 915 3.78      
11 B1 821 782 0.51      
12 B2 3147 2997 7.83      
13 B2 1467 1397 0.27      
14 B2 1077 1026 27.80      
15 B2 734 699 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 12151.0 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 11572.6 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 M06-2X/6-31G(2df,p)
ABC
0.73826 0.36449 0.27043

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.859
C2 0.000 0.740 -0.791
C3 0.000 -0.740 -0.791
H4 -0.914 1.253 -1.065
H5 0.914 1.253 -1.065
H6 0.914 -1.253 -1.065
H7 -0.914 -1.253 -1.065

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80841.80842.47152.47152.47152.4715
C21.80841.48021.08371.08372.21022.2102
C31.80841.48022.21022.21021.08371.0837
H42.47151.08372.21021.82863.10282.5067
H52.47151.08372.21021.82862.50673.1028
H62.47152.21021.08373.10282.50671.8286
H72.47152.21021.08372.50673.10281.8286

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.841 S1 C2 H4 115.115
S1 C2 H5 115.115 S1 C3 C2 65.841
S1 C3 H6 115.115 S1 C3 H7 115.115
C2 S1 C3 48.317 C2 C3 H6 118.267
C2 C3 H7 118.267 C3 C2 H4 118.267
C3 C2 H5 118.267 H4 C2 H5 115.066
H6 C3 H7 115.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.158      
2 C -0.245      
3 C -0.245      
4 H 0.162      
5 H 0.162      
6 H 0.162      
7 H 0.162      


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 -1.976 1.976
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.872 0.000 0.000
y 0.000 -24.198 0.000
z 0.000 0.000 -25.965
Traceless
 xyz
x -0.790 0.000 0.000
y 0.000 1.720 0.000
z 0.000 0.000 -0.930
Polar
3z2-r2-1.860
x2-y2-1.674
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.577 0.000 0.000
y 0.000 5.263 0.000
z 0.000 0.000 6.533


<r2> (average value of r2) Å2
<r2> 55.868
(<r2>)1/2 7.475