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: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-1196.217056
Energy at 298.15K-1196.217408
HF Energy-1196.217056
Nuclear repulsion energy346.150118
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 BLYP/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 A1 1681 1683 14.13      
2 A1 1100 1101 330.73      
3 A1 530 531 2.23      
4 A1 315 316 2.17      
5 A1 163 163 1.15      
6 A2 499 500 0.00      
7 A2 137 138 0.00      
8 B1 332 332 0.06      
9 B2 1150 1152 27.55      
10 B2 897 899 169.35      
11 B2 409 409 0.00      
12 B2 393 394 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 3803.5 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 3809.6 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 BLYP/cc-pVDZ
ABC
0.09915 0.06065 0.03763

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.676 0.427
C2 0.000 -0.676 0.427
F3 0.000 1.356 1.593
F4 0.000 -1.356 1.593
Cl5 0.000 1.679 -0.994
Cl6 0.000 -1.679 -0.994

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.35281.34962.34311.73972.7512
C21.35282.34311.34962.75121.7397
F31.34962.34312.71192.60803.9884
F42.34311.34962.71193.98842.6080
Cl51.73972.75122.60803.98843.3577
Cl62.75121.73973.98842.60803.3577

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 120.233 C1 C2 Cl6 125.186
C2 C1 F3 120.233 C2 C1 Cl5 125.186
F3 C1 Cl5 114.582 F4 C2 Cl6 114.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.106      
2 C 0.106      
3 F -0.101      
4 F -0.101      
5 Cl -0.006      
6 Cl -0.006      


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 -0.585 0.585
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.041 0.000 0.000
y 0.000 -45.224 0.000
z 0.000 0.000 -45.145
Traceless
 xyz
x 0.143 0.000 0.000
y 0.000 -0.131 0.000
z 0.000 0.000 -0.013
Polar
3z2-r2-0.025
x2-y20.183
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.948 0.000 0.000
y 0.000 8.534 0.000
z 0.000 0.000 6.961


<r2> (average value of r2) Å2
<r2> 244.129
(<r2>)1/2 15.625