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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-60.780113
Energy at 298.15K-60.782421
Nuclear repulsion energy60.851629
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3240 3157 10.49      
2 A1 1712 1668 31.53      
3 A1 1256 1224 25.77      
4 A1 947 923 60.84      
5 A1 225 219 2.84      
6 A2 863 841 0.00      
7 A2 468 456 0.00      
8 B1 773 753 65.15      
9 B2 3210 3128 3.87      
10 B2 1353 1318 15.24      
11 B2 1066 1039 108.75      
12 B2 724 705 29.76      

Unscaled Zero Point Vibrational Energy (zpe) 7917.8 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 7715.9 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 B3LYP/CEP-121G
ABC
0.65496 0.18709 0.14552

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.671 0.610
C2 0.000 -0.671 0.610
F3 0.000 1.414 -0.574
F4 0.000 -1.414 -0.574
H5 0.000 1.284 1.504
H6 0.000 -1.284 1.504

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.34301.39742.39801.08402.1503
C21.34302.39801.39742.15031.0840
F31.39742.39802.82782.08243.4055
F42.39801.39742.82783.40552.0824
H51.08402.15032.08243.40552.5678
H62.15031.08403.40552.08242.5678

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 122.093 C1 C2 H6 124.398
C2 C1 F3 122.093 C2 C1 H5 124.398
F3 C1 H5 113.509 F4 C2 H6 113.509
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 C 0.052      
3 F -0.207      
4 F -0.207      
5 H 0.155      
6 H 0.155      


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 3.302 3.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.675 0.000 0.000
y 0.000 -23.236 0.000
z 0.000 0.000 -19.795
Traceless
 xyz
x -1.160 0.000 0.000
y 0.000 -2.000 0.000
z 0.000 0.000 3.160
Polar
3z2-r26.320
x2-y20.560
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.979 0.000 0.000
y 0.000 4.946 0.000
z 0.000 0.000 3.319


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