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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: BLYP/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 BLYP/cc-pVDZ
 hartrees
Energy at 0K-476.734068
Energy at 298.15K-476.738386
HF Energy-476.734068
Nuclear repulsion energy99.151514
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/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 3032 3037 13.92      
2 A1 1427 1429 3.82      
3 A1 1107 1109 3.10      
4 A1 999 1000 0.04      
5 A1 597 598 22.05      
6 A2 3114 3119 0.00      
7 A2 1148 1150 0.00      
8 A2 850 852 0.00      
9 B1 3129 3134 11.20      
10 B1 904 906 4.94      
11 B1 804 805 0.28      
12 B2 3032 3036 17.73      
13 B2 1401 1404 0.10      
14 B2 1010 1012 24.24      
15 B2 611 612 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 11582.7 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 11601.2 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/cc-pVDZ
ABC
0.72221 0.34114 0.25614

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.889
C2 0.000 0.746 -0.821
C3 0.000 -0.746 -0.821
H4 -0.928 1.272 -1.094
H5 0.928 1.272 -1.094
H6 0.928 -1.272 -1.094
H7 -0.928 -1.272 -1.094

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.86521.86522.53192.53192.53192.5319
C21.86521.49171.10111.10112.23752.2375
C31.86521.49172.23752.23751.10111.1011
H42.53191.10112.23751.85613.14862.5433
H52.53191.10112.23751.85612.54333.1486
H62.53192.23751.10113.14862.54331.8561
H72.53192.23751.10112.54333.14861.8561

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.430 S1 C2 H4 114.737
S1 C2 H5 114.737 S1 C3 C2 66.430
S1 C3 H6 114.737 S1 C3 H7 114.737
C2 S1 C3 47.139 C2 C3 H6 118.524
C2 C3 H7 118.524 C3 C2 H4 118.524
C3 C2 H5 118.524 H4 C2 H5 114.880
H6 C3 H7 114.880
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.117      
2 C -0.031      
3 C -0.031      
4 H 0.045      
5 H 0.045      
6 H 0.045      
7 H 0.045      


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 -1.838 1.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.088 0.000 0.000
y 0.000 -24.526 0.000
z 0.000 0.000 -25.980
Traceless
 xyz
x -0.835 0.000 0.000
y 0.000 1.508 0.000
z 0.000 0.000 -0.673
Polar
3z2-r2-1.346
x2-y2-1.562
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.099 0.000 0.000
y 0.000 5.194 0.000
z 0.000 0.000 6.633


<r2> (average value of r2) Å2
<r2> 58.048
(<r2>)1/2 7.619