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

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-276.991168
Energy at 298.15K-276.993547
Nuclear repulsion energy113.649685
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 B1B95/6-31+G**
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 3279 3137 5.68      
2 A1 1795 1717 63.07      
3 A1 1286 1230 44.56      
4 A1 1037 992 66.61      
5 A1 227 217 2.05      
6 A2 865 828 0.00      
7 A2 507 485 0.00      
8 B1 778 745 53.39      
9 B2 3256 3115 5.23      
10 B2 1394 1334 40.11      
11 B2 1158 1108 131.45      
12 B2 771 738 29.54      

Unscaled Zero Point Vibrational Energy (zpe) 8176.9 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 7822.0 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 B1B95/6-31+G**
ABC
0.70954 0.19550 0.15327

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.662 0.579
C2 0.000 -0.662 0.579
F3 0.000 1.382 -0.551
F4 0.000 -1.382 -0.551
H5 0.000 1.252 1.485
H6 0.000 -1.252 1.485

Atom - Atom Distances (Å)
  C1 C2 F3 F4 H5 H6
C11.32501.33902.33551.08162.1184
C21.32502.33551.33902.11841.0816
F31.33902.33552.76332.04053.3291
F42.33551.33902.76333.32912.0405
H51.08162.11842.04053.32912.5041
H62.11841.08163.32912.04052.5041

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 122.485 C1 C2 H6 123.030
C2 C1 F3 122.485 C2 C1 H5 123.030
F3 C1 H5 114.485 F4 C2 H6 114.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.114      
2 C 0.114      
3 F -0.280      
4 F -0.280      
5 H 0.166      
6 H 0.166      


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 2.558 2.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.674 0.000 0.000
y 0.000 -22.334 0.000
z 0.000 0.000 -19.868
Traceless
 xyz
x -1.573 0.000 0.000
y 0.000 -1.063 0.000
z 0.000 0.000 2.636
Polar
3z2-r25.272
x2-y2-0.340
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.660 0.000 0.000
y 0.000 5.127 0.000
z 0.000 0.000 3.571


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