return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CFClCFCl (cis-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: B3LYP/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 B3LYP/6-31+G**
 hartrees
Energy at 0K-1196.245099
Energy at 298.15K-1196.245603
HF Energy-1196.245099
Nuclear repulsion energy349.846724
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/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 1762 1699 14.93      
2 A1 1157 1115 368.11      
3 A1 562 542 0.98      
4 A1 331 319 2.68      
5 A1 168 162 1.09      
6 A2 544 524 0.00      
7 A2 145 140 0.00      
8 B1 338 326 0.49      
9 B2 1195 1152 29.10      
10 B2 954 920 182.55      
11 B2 431 416 0.09      
12 B2 413 398 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 3999.9 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 3856.7 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/6-31+G**
ABC
0.10232 0.06131 0.03834

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.668 0.409
C2 0.000 -0.668 0.409
F3 0.000 1.331 1.573
F4 0.000 -1.331 1.573
Cl5 0.000 1.678 -0.977
Cl6 0.000 -1.678 -0.977

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33661.33952.31371.71472.7249
C21.33662.31371.33952.72491.7147
F31.33952.31372.66272.57333.9442
F42.31371.33952.66273.94422.5733
Cl51.71472.72492.57333.94423.3557
Cl62.72491.71473.94422.57333.3557

picture of cis-1,2-dichloro-1,2-difluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 119.670 C1 C2 Cl6 126.070
C2 C1 F3 119.670 C2 C1 Cl5 126.070
F3 C1 Cl5 114.261 F4 C2 Cl6 114.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.071      
2 C 0.071      
3 F -0.237      
4 F -0.237      
5 Cl 0.166      
6 Cl 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 -1.133 1.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.754 0.000 0.000
y 0.000 -46.299 0.000
z 0.000 0.000 -47.154
Traceless
 xyz
x 0.972 0.000 0.000
y 0.000 0.156 0.000
z 0.000 0.000 -1.127
Polar
3z2-r2-2.255
x2-y20.544
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.392 0.000 0.000
y 0.000 9.596 0.000
z 0.000 0.000 7.507


<r2> (average value of r2) Å2
<r2> 240.952
(<r2>)1/2 15.523