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

using model chemistry: B3LYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/cc-pVDZ
 hartrees
Energy at 0K-277.061284
Energy at 298.15K-277.063558
HF Energy-277.061284
Nuclear repulsion energy110.593345
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/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 Ag 3225 3128 0.00      
2 Ag 1769 1716 0.00      
3 Ag 1293 1254 0.00      
4 Ag 1157 1122 0.00      
5 Ag 554 537 0.00      
6 Au 916 889 58.33      
7 Au 341 331 5.15      
8 Bg 822 797 0.00      
9 Bu 3216 3120 12.33      
10 Bu 1279 1240 36.02      
11 Bu 1179 1144 274.35      
12 Bu 312 303 12.15      

Unscaled Zero Point Vibrational Energy (zpe) 8031.3 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 7790.4 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 B3LYP/cc-pVDZ
ABC
1.91672 0.13272 0.12413

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.331 0.576 0.000
C2 0.331 -0.576 0.000
F3 0.331 1.748 0.000
F4 -0.331 -1.748 0.000
H5 -1.420 0.664 0.000
H6 1.420 -0.664 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32941.34612.32411.09192.1458
C21.32942.32411.34612.14581.0919
F31.34612.32413.55802.05942.6461
F42.32411.34613.55802.64612.0594
H51.09192.14582.05942.64613.1347
H62.14581.09192.64612.05943.1347

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 120.605 C1 C2 H6 124.513
C2 C1 F3 120.605 C2 C1 H5 124.513
F3 C1 H5 114.882 F4 C2 H6 114.882
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.144      
2 C 0.144      
3 F -0.169      
4 F -0.169      
5 H 0.026      
6 H 0.026      


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 -18.901 -2.131 0.000
y -2.131 -24.944 0.000
z 0.000 0.000 -22.064
Traceless
 xyz
x 4.603 -2.131 0.000
y -2.131 -4.462 0.000
z 0.000 0.000 -0.141
Polar
3z2-r2-0.282
x2-y26.043
xy-2.131
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.430 -0.541 0.000
y -0.541 4.500 0.000
z 0.000 0.000 1.704


<r2> (average value of r2) Å2
<r2> 80.905
(<r2>)1/2 8.995