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All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CBS-Q
 hartrees
Energy at 0K-1196.274050
Energy at 298.15K-1196.266984
HF Energy-1194.712315
Nuclear repulsion energy379.209023
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3343 3343 1.68      
2 A 1559 1559 13.50      
3 A 1440 1440 28.33      
4 A 1252 1252 242.44      
5 A 1174 1174 85.74      
6 A 913 913 97.68      
7 A 496 496 1.19      
8 A 340 340 1.82      
9 A 177 177 0.90      
10 A 86 86 0.92      
11 B 3354 3354 16.50      
12 B 1490 1490 11.07      
13 B 1358 1358 45.25      
14 B 1218 1218 31.53      
15 B 905 905 149.70      
16 B 471 471 16.18      
17 B 426 426 9.25      
18 B 361 361 15.73      

Unscaled Zero Point Vibrational Energy (zpe) 10180.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10180.7 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 CBS-Q
ABC
0.09818 0.06049 0.03889

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.243 0.721 0.408
C2 0.243 -0.721 0.408
H3 -1.314 0.802 0.428
H4 1.314 -0.802 0.428
F5 0.243 1.297 1.520
F6 -0.243 -1.297 1.520
Cl7 0.351 1.664 -0.974
Cl8 -0.351 -1.664 -0.974

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52101.07452.17741.34272.30341.77572.7587
C21.52102.17741.07452.30341.34272.75871.7757
H31.07452.17743.07841.96492.59692.34112.9952
H42.17741.07453.07842.59691.96492.99522.3411
F51.34272.30341.96492.59692.63842.52293.9164
F62.30341.34272.59691.96492.63843.91642.5229
Cl71.77572.75872.34112.99522.52293.91643.4020
Cl82.75871.77572.99522.34113.91642.52293.4020

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 112.926 C1 C2 F6 106.931
C1 C2 Cl8 113.382 C2 C1 H3 112.926
C2 C1 F5 106.931 C2 C1 Cl7 113.382
H3 C1 F5 108.250 H3 C1 Cl7 107.904
H4 C2 F6 108.250 H4 C2 Cl8 107.904
F5 C1 Cl7 107.186 F6 C2 Cl8 107.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability