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 CF2ClCF2Cl (1,2-Dichloro-1,1,2,2-tetrafluoroethane)

using model chemistry: CCD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at CCD/6-31G*
 hartrees
Energy at 0K-1393.653515
Energy at 298.15K-1393.655760
HF Energy-1392.429709
Nuclear repulsion energy613.642991
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 CCD/6-31G*
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 1374 1300 0.00      
2 Ag 1150 1089 0.00      
3 Ag 721 682 0.00      
4 Ag 460 435 0.00      
5 Ag 365 345 0.00      
6 Ag 266 251 0.00      
7 Au 1291 1222 353.39      
8 Au 388 367 0.94      
9 Au 226 214 1.85      
10 Au 74 70 0.29      
11 Bg 1285 1217 0.00      
12 Bg 562 532 0.00      
13 Bg 336 318 0.00      
14 Bu 1211 1146 362.74      
15 Bu 895 848 338.94      
16 Bu 611 578 15.96      
17 Bu 449 425 3.61      
18 Bu 176 167 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 5918.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 5602.0 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 CCD/6-31G*
ABC
0.07387 0.03886 0.03503

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.243 0.731 0.000
C2 0.243 -0.731 0.000
Cl3 -1.996 0.814 0.000
Cl4 1.996 -0.814 0.000
F5 0.243 1.346 1.090
F6 0.243 1.346 -1.090
F7 -0.243 -1.346 1.090
F8 -0.243 -1.346 -1.090

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 F5 F6 F7 F8
C11.54121.75502.71961.34251.34252.34642.3464
C21.54122.71961.75502.34642.34641.34251.3425
Cl31.75502.71964.31022.54602.54602.98782.9878
Cl42.71961.75504.31022.98782.98782.54602.5460
F51.34252.34642.54602.98782.18082.73593.4987
F61.34252.34642.54602.98782.18083.49872.7359
F72.34641.34252.98782.54602.73593.49872.1808
F82.34641.34252.98782.54603.49872.73592.1808

picture of 1,2-Dichloro-1,1,2,2-tetrafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl4 111.026 C1 C2 F7 108.723
C1 C2 F8 108.723 C2 C1 Cl3 111.026
C2 C1 F5 108.723 C2 C1 F6 108.723
Cl3 C1 F5 109.846 Cl3 C1 F6 109.846
Cl4 C2 F7 109.846 Cl4 C2 F8 109.846
F5 C1 F6 108.626 F7 C2 F8 108.626
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability