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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-276.906484
Energy at 298.15K-276.908851
Nuclear repulsion energy111.834064
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 B1B95/6-31G
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 3310 3157 6.17      
2 A1 1801 1717 23.56      
3 A1 1296 1236 20.15      
4 A1 1002 955 55.42      
5 A1 226 216 2.79      
6 A2 920 877 0.00      
7 A2 490 467 0.00      
8 B1 806 768 44.46      
9 B2 3283 3131 1.54      
10 B2 1407 1342 13.18      
11 B2 1122 1070 86.99      
12 B2 746 712 25.81      

Unscaled Zero Point Vibrational Energy (zpe) 8203.6 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 7823.7 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 B1B95/6-31G
ABC
0.67758 0.19051 0.14870

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 0.597
C2 0.000 -0.662 0.597
F3 0.000 1.403 -0.564
F4 0.000 -1.403 -0.564
H5 0.000 1.258 1.496
H6 0.000 -1.258 1.496

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32361.37712.36861.07902.1199
C21.32362.36861.37712.11991.0790
F31.37712.36862.80582.06523.3650
F42.36861.37712.80583.36502.0652
H51.07902.11992.06523.36502.5157
H62.11991.07903.36502.06522.5157

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 122.560 C1 C2 H6 123.530
C2 C1 F3 122.560 C2 C1 H5 123.530
F3 C1 H5 113.910 F4 C2 H6 113.910
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.125      
2 C 0.125      
3 F -0.308      
4 F -0.308      
5 H 0.183      
6 H 0.183      


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 2.941 2.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.984 0.000 0.000
y 0.000 -22.630 0.000
z 0.000 0.000 -19.383
Traceless
 xyz
x -0.977 0.000 0.000
y 0.000 -1.947 0.000
z 0.000 0.000 2.924
Polar
3z2-r25.847
x2-y20.646
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.342 0.000 0.000
y 0.000 4.478 0.000
z 0.000 0.000 3.021


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