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: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-1196.415052
Energy at 298.15K-1196.415566
HF Energy-1196.415052
Nuclear repulsion energy351.838480
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 TPSSh/cc-pVTZ
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 1746 1690 17.40      
2 A1 1158 1121 340.88      
3 A1 565 547 1.10      
4 A1 325 314 2.21      
5 A1 162 157 1.11      
6 A2 545 528 0.00      
7 A2 146 141 0.00      
8 B1 345 334 0.12      
9 B2 1194 1156 33.02      
10 B2 954 924 171.64      
11 B2 429 415 0.08      
12 B2 410 397 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 3988.5 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 3862.1 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 TPSSh/cc-pVTZ
ABC
0.10253 0.06263 0.03888

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 0.416
C2 0.000 -0.667 0.416
F3 0.000 1.335 1.569
F4 0.000 -1.335 1.569
Cl5 0.000 1.652 -0.977
Cl6 0.000 -1.652 -0.977

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.33351.33252.30981.70602.7048
C21.33352.30981.33252.70481.7060
F31.33252.30982.66942.56563.9243
F42.30981.33252.66943.92432.5656
Cl51.70602.70482.56563.92433.3035
Cl62.70481.70603.92432.56563.3035

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 120.083 C1 C2 Cl6 125.266
C2 C1 F3 120.083 C2 C1 Cl5 125.266
F3 C1 Cl5 114.650 F4 C2 Cl6 114.650
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.168      
2 C 0.168      
3 F -0.122      
4 F -0.122      
5 Cl -0.046      
6 Cl -0.046      


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 -0.740 0.740
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.146 0.000 0.000
y 0.000 9.389 0.000
z 0.000 0.000 7.527


<r2> (average value of r2) Å2
<r2> 237.314
(<r2>)1/2 15.405