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All results from a given calculation for CF2ClCF2Cl (1,2-Dichloro-1,1,2,2-tetrafluoroethane)

using model chemistry: QCISD(T)/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 QCISD(T)/6-31G*
 hartrees
Energy at 0K-1393.699820
Energy at 298.15K-1393.701967
HF Energy-1392.428249
Nuclear repulsion energy611.709171
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 QCISD(T)/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 1345 1290        
2 Ag 1118 1072        
3 Ag 705 677        
4 Ag 449 431        
5 Ag 358 344        
6 Ag 261 250        
7 Au 1257 1206        
8 Au 381 365        
9 Au 222 213        
10 Au 72 69        
11 Bg 1248 1198        
12 Bg 552 529        
13 Bg 329 316        
14 Bu 1180 1132        
15 Bu 874 838        
16 Bu 598 573        
17 Bu 439 421        
18 Bu 173 166        

Unscaled Zero Point Vibrational Energy (zpe) 5780.2 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 5544.9 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 QCISD(T)/6-31G*
ABC
0.07329 0.03867 0.03485

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.243 0.732 0.000
C2 0.243 -0.732 0.000
Cl3 -2.003 0.811 0.000
Cl4 2.003 -0.811 0.000
F5 0.243 1.350 1.095
F6 0.243 1.350 -1.095
F7 -0.243 -1.350 1.095
F8 -0.243 -1.350 -1.095

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 F5 F6 F7 F8
C11.54271.76132.72451.34811.34812.35272.3527
C21.54272.72451.76132.35272.35271.34811.3481
Cl31.76132.72454.32092.55592.55592.99412.9941
Cl42.72451.76134.32092.99412.99412.55592.5559
F51.34812.35272.55592.99412.19012.74373.5106
F61.34812.35272.55592.99412.19013.51062.7437
F72.35271.34812.99412.55592.74373.51062.1901
F82.35271.34812.99412.55593.51062.74372.1901

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 110.918 C1 C2 F7 108.759
C1 C2 F8 108.759 C2 C1 Cl3 110.918
C2 C1 F5 108.759 C2 C1 F6 108.759
Cl3 C1 F5 109.856 Cl3 C1 F6 109.856
Cl4 C2 F7 109.856 Cl4 C2 F8 109.856
F5 C1 F6 108.645 F7 C2 F8 108.645
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability