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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-275.631334
Energy at 298.15K-275.633649
Nuclear repulsion energy112.013610
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 LSDA/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 3205 3140 5.90      
2 A1 1766 1730 28.56      
3 A1 1261 1236 23.79      
4 A1 1001 981 45.10      
5 A1 213 209 2.21      
6 A2 871 853 0.00      
7 A2 487 477 0.00      
8 B1 773 758 51.32      
9 B2 3178 3114 2.10      
10 B2 1358 1331 12.46      
11 B2 1129 1106 81.89      
12 B2 740 725 21.22      

Unscaled Zero Point Vibrational Energy (zpe) 7992.1 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 7829.8 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 LSDA/6-31G
ABC
0.68343 0.19072 0.14911

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.664 0.591
C2 0.000 -0.664 0.591
F3 0.000 1.401 -0.561
F4 0.000 -1.401 -0.561
H5 0.000 1.258 1.507
H6 0.000 -1.258 1.507

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32821.36792.36511.09152.1289
C21.32822.36511.36792.12891.0915
F31.36792.36512.80272.07323.3687
F42.36511.36792.80273.36872.0732
H51.09152.12892.07323.36872.5153
H62.12891.09153.36872.07322.5153

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 122.612 C1 C2 H6 122.942
C2 C1 F3 122.612 C2 C1 H5 122.942
F3 C1 H5 114.446 F4 C2 H6 114.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.074      
2 C 0.074      
3 F -0.256      
4 F -0.256      
5 H 0.182      
6 H 0.182      


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 2.599 2.599
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.180 0.000 0.000
y 0.000 -22.379 0.000
z 0.000 0.000 -19.443
Traceless
 xyz
x -1.269 0.000 0.000
y 0.000 -1.567 0.000
z 0.000 0.000 2.837
Polar
3z2-r25.673
x2-y20.199
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.386 0.000 0.000
y 0.000 4.534 0.000
z 0.000 0.000 3.171


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