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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-277.165598
Energy at 298.15K-277.167879
HF Energy-277.165598
Nuclear repulsion energy110.886129
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/TZVP
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 3229 3117 0.00      
2 Ag 1749 1688 0.00      
3 Ag 1316 1270 0.00      
4 Ag 1144 1105 0.00      
5 Ag 556 537 0.00      
6 Au 914 883 77.86      
7 Au 335 324 4.92      
8 Bg 825 797 0.00      
9 Bu 3223 3112 13.09      
10 Bu 1303 1258 10.18      
11 Bu 1160 1120 331.14      
12 Bu 322 311 13.60      

Unscaled Zero Point Vibrational Energy (zpe) 8037.9 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 7759.8 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/TZVP
ABC
1.92500 0.13355 0.12489

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.333 0.570 0.000
C2 0.333 -0.570 0.000
F3 0.333 1.743 0.000
F4 -0.333 -1.743 0.000
H5 -1.409 0.670 0.000
H6 1.409 -0.670 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32061.34802.31321.08082.1379
C21.32062.31321.34802.13791.0808
F31.34802.31323.54862.04552.6417
F42.31321.34803.54862.64172.0455
H51.08082.13792.04552.64173.1199
H62.13791.08082.64172.04553.1199

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 120.187 C1 C2 H6 125.516
C2 C1 F3 120.187 C2 C1 H5 125.516
F3 C1 H5 114.297 F4 C2 H6 114.297
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.073      
2 C 0.073      
3 F -0.198      
4 F -0.198      
5 H 0.125      
6 H 0.125      


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 -19.128 -2.659 0.000
y -2.659 -26.396 0.000
z 0.000 0.000 -22.630
Traceless
 xyz
x 5.385 -2.659 0.000
y -2.659 -5.517 0.000
z 0.000 0.000 0.132
Polar
3z2-r20.264
x2-y27.268
xy-2.659
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.568 -0.513 0.000
y -0.513 4.872 0.000
z 0.000 0.000 2.448


<r2> (average value of r2) Å2
<r2> 80.953
(<r2>)1/2 8.997