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

using model chemistry: QCISD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-1394.412865
Energy at 298.15K-1394.415130
HF Energy-1392.692771
Nuclear repulsion energy614.466708
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/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 Ag 1344 1284 0.00      
2 Ag 1107 1058 0.00      
3 Ag 723 690 0.00      
4 Ag 454 434 0.00      
5 Ag 369 353 0.00      
6 Ag 258 247 0.00      
7 Au 1266 1210 358.06      
8 Au 384 367 0.56      
9 Au 228 218 1.44      
10 Au 73 70 0.21      
11 Bg 1255 1199 0.00      
12 Bg 557 533 0.00      
13 Bg 330 315 0.00      
14 Bu 1192 1139 355.52      
15 Bu 873 834 352.45      
16 Bu 623 595 11.64      
17 Bu 447 427 1.73      
18 Bu 171 163 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 5827.2 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 5567.9 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/cc-pVTZ
ABC
0.07435 0.03887 0.03491

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.238 0.737 0.000
C2 0.238 -0.737 0.000
Cl3 -1.998 0.816 0.000
Cl4 1.998 -0.816 0.000
F5 0.238 1.349 1.081
F6 0.238 1.349 -1.081
F7 -0.238 -1.349 1.081
F8 -0.238 -1.349 -1.081

Atom - Atom Distances (Å)
  C1 C2 Cl3 Cl4 F5 F6 F7 F8
C11.54921.76202.72241.32991.32992.35002.3500
C21.54922.72241.76202.35002.35001.32991.3299
Cl31.76202.72244.31652.53952.53952.99302.9930
Cl42.72241.76204.31652.99302.99302.53952.5395
F51.32992.35002.53952.99302.16162.74033.4903
F61.32992.35002.53952.99302.16163.49032.7403
F72.35001.32992.99302.53952.74033.49032.1616
F82.35001.32992.99302.53953.49032.74032.1616

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 110.440 C1 C2 F7 109.179
C1 C2 F8 109.179 C2 C1 Cl3 110.440
C2 C1 F5 109.179 C2 C1 F6 109.179
Cl3 C1 F5 109.647 Cl3 C1 F6 109.647
Cl4 C2 F7 109.647 Cl4 C2 F8 109.647
F5 C1 F6 108.719 F7 C2 F8 108.719
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability