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 CFClCClF (trans-1,2-dichloro-1,2-difluoroethylene)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-1193.627560
Energy at 298.15K-1193.628428
HF Energy-1193.627560
Nuclear repulsion energy353.651927
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 HF/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1973 1784 0.00      
2 Ag 1332 1205 0.00      
3 Ag 699 632 0.00      
4 Ag 465 421 0.00      
5 Ag 315 285 0.00      
6 Au 421 381 3.26      
7 Au 152 137 0.25      
8 Bg 664 600 0.00      
9 Bu 1353 1223 394.80      
10 Bu 956 864 216.70      
11 Bu 463 419 4.06      
12 Bu 194 175 3.19      

Unscaled Zero Point Vibrational Energy (zpe) 4492.7 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 4063.2 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 HF/6-311G*
ABC
0.14763 0.05081 0.03780

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.067 0.650 0.000
C2 0.067 -0.650 0.000
F3 -1.241 1.219 0.000
F4 1.241 -1.219 0.000
Cl5 1.241 1.745 0.000
Cl6 -1.241 -1.745 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 Cl5 Cl6
C11.30781.30482.28181.70562.6676
C21.30782.28181.30482.66761.7056
F31.30482.28183.47972.53752.9639
F42.28181.30483.47972.96392.5375
Cl51.70562.66762.53752.96394.2825
Cl62.66761.70562.96392.53754.2825

picture of trans-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 121.717 C1 C2 Cl6 124.037
C2 C1 F3 121.717 C2 C1 Cl5 124.037
F3 C1 Cl5 114.246 F4 C2 Cl6 114.246
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.245      
2 C 0.245      
3 F -0.238      
4 F -0.238      
5 Cl -0.007      
6 Cl -0.007      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.067 2.433 0.000
y 2.433 -46.885 0.000
z 0.000 0.000 -45.903
Traceless
 xyz
x -0.673 2.433 0.000
y 2.433 -0.400 0.000
z 0.000 0.000 1.073
Polar
3z2-r22.147
x2-y2-0.182
xy2.433
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.203 2.258 0.000
y 2.258 8.324 0.000
z 0.000 0.000 2.811


<r2> (average value of r2) Å2
<r2> 244.623
(<r2>)1/2 15.640