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All results from a given calculation for C2H2F2 (Ethene, 1,2-difluoro-, (Z)-)

using model chemistry: LSDA/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-31G**
 hartrees
Energy at 0K-275.696725
Energy at 298.15K-275.699038
Nuclear repulsion energy114.044105
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 LSDA/6-31G**
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 3163 3104 9.16      
2 A1 1777 1744 52.25      
3 A1 1266 1242 41.41      
4 A1 1047 1028 40.34      
5 A1 209 206 1.68      
6 A2 804 789 0.00      
7 A2 496 487 0.00      
8 B1 756 742 37.70      
9 B2 3140 3081 1.89      
10 B2 1379 1354 43.25      
11 B2 1176 1154 85.42      
12 B2 764 750 22.21      

Unscaled Zero Point Vibrational Energy (zpe) 7988.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 7839.4 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 LSDA/6-31G**
ABC
0.71444 0.19717 0.15453

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.665 0.573
C2 0.000 -0.665 0.573
F3 0.000 1.374 -0.549
F4 0.000 -1.374 -0.549
H5 0.000 1.250 1.498
H6 0.000 -1.250 1.498

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32921.32752.32711.09462.1262
C21.32922.32711.32752.12621.0946
F31.32752.32712.74832.05083.3280
F42.32711.32752.74833.32802.0508
H51.09462.12622.05083.32802.4995
H62.12621.09463.32802.05082.4995

picture of Ethene, 1,2-difluoro-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 122.307 C1 C2 H6 122.316
C2 C1 F3 122.307 C2 C1 H5 122.316
F3 C1 H5 115.377 F4 C2 H6 115.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.075      
2 C 0.075      
3 F -0.207      
4 F -0.207      
5 H 0.131      
6 H 0.131      


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 1.903 1.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.962 0.000 0.000
y 0.000 -21.268 0.000
z 0.000 0.000 -19.229
Traceless
 xyz
x -1.714 0.000 0.000
y 0.000 -0.672 0.000
z 0.000 0.000 2.386
Polar
3z2-r24.772
x2-y2-0.695
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.731 0.000 0.000
y 0.000 4.664 0.000
z 0.000 0.000 3.291


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000