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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-276.940586
Energy at 298.15K-276.942721
HF Energy-276.940586
Nuclear repulsion energy107.753570
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/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 Ag 3197 3172 0.00      
2 Ag 1682 1669 0.00      
3 Ag 1283 1273 0.00      
4 Ag 1056 1048 0.00      
5 Ag 511 507 0.00      
6 Au 899 892 74.27      
7 Au 311 309 7.26      
8 Bg 780 774 0.00      
9 Bu 3190 3165 10.62      
10 Bu 1265 1255 2.73      
11 Bu 1083 1075 183.68      
12 Bu 298 296 14.07      

Unscaled Zero Point Vibrational Energy (zpe) 7776.6 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 7717.5 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 BLYP/6-31G
ABC
1.84295 0.12591 0.11786

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.344 0.574 0.000
C2 0.344 -0.574 0.000
F3 0.344 1.797 0.000
F4 -0.344 -1.797 0.000
H5 -1.428 0.676 0.000
H6 1.428 -0.676 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.33861.40392.37131.08812.1686
C21.33862.37131.40392.16861.0881
F31.40392.37133.66002.09692.7004
F42.37131.40393.66002.70042.0969
H51.08812.16862.09692.70043.1595
H62.16861.08812.70042.09693.1595

picture of Ethene, 1,2-difluoro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 119.659 C1 C2 H6 126.358
C2 C1 F3 119.659 C2 C1 H5 126.358
F3 C1 H5 113.983 F4 C2 H6 113.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.128      
2 C 0.128      
3 F -0.275      
4 F -0.275      
5 H 0.147      
6 H 0.147      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.813 -2.544 0.000
y -2.544 -26.403 0.000
z 0.000 0.000 -22.018
Traceless
 xyz
x 5.398 -2.544 0.000
y -2.544 -5.988 0.000
z 0.000 0.000 0.590
Polar
3z2-r21.179
x2-y27.590
xy-2.544
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.210 -0.364 0.000
y -0.364 4.707 0.000
z 0.000 0.000 1.307


<r2> (average value of r2) Å2
<r2> 84.646
(<r2>)1/2 9.200