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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B2PLYP/aug-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 B2PLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-476.631862
Energy at 298.15K-476.636309
HF Energy-476.459068
Nuclear repulsion energy100.975299
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 B2PLYP/aug-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 3149 3026 14.29      
2 A1 1507 1448 2.64      
3 A1 1146 1101 1.65      
4 A1 1051 1010 0.74      
5 A1 630 605 24.38      
6 A2 3230 3104 0.00      
7 A2 1205 1158 0.00      
8 A2 906 871 0.00      
9 B1 3244 3118 2.32      
10 B1 960 923 3.09      
11 B1 840 807 0.53      
12 B2 3147 3024 9.60      
13 B2 1484 1426 0.76      
14 B2 1081 1038 21.99      
15 B2 670 644 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 12124.4 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 11651.5 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 B2PLYP/aug-cc-pVTZ
ABC
0.74060 0.35625 0.26604

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.867
C2 0.000 0.739 -0.798
C3 0.000 -0.739 -0.798
H4 -0.911 1.250 -1.073
H5 0.911 1.250 -1.073
H6 0.911 -1.250 -1.073
H7 -0.911 -1.250 -1.073

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82121.82122.48112.48112.48112.4811
C21.82121.47851.08031.08032.20532.2053
C31.82121.47852.20532.20531.08031.0803
H42.48111.08032.20531.82263.09392.5000
H52.48111.08032.20531.82262.50003.0939
H62.48112.20531.08033.09392.50001.8226
H72.48112.20531.08032.50003.09391.8226

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.052 S1 C2 H4 115.138
S1 C2 H5 115.138 S1 C3 C2 66.052
S1 C3 H6 115.138 S1 C3 H7 115.138
C2 S1 C3 47.897 C2 C3 H6 118.214
C2 C3 H7 118.214 C3 C2 H4 118.214
C3 C2 H5 118.214 H4 C2 H5 115.030
H6 C3 H7 115.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.045      
2 C -0.542      
3 C -0.542      
4 H 0.282      
5 H 0.282      
6 H 0.282      
7 H 0.282      


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 -1.963 1.963
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.525 0.000 0.000
y 0.000 -24.759 0.000
z 0.000 0.000 -26.612
Traceless
 xyz
x -0.839 0.000 0.000
y 0.000 1.810 0.000
z 0.000 0.000 -0.971
Polar
3z2-r2-1.941
x2-y2-1.766
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.803 0.000 0.000
y 0.000 6.327 0.000
z 0.000 0.000 7.842


<r2> (average value of r2) Å2
<r2> 56.771
(<r2>)1/2 7.535