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

using model chemistry: CCSD=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD=FULL/TZVP
 hartrees
Energy at 0K-1196.009357
Energy at 298.15K-1196.012949
HF Energy-1194.876510
Nuclear repulsion energy377.064878
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 CCSD=FULL/TZVP
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 3176 3009 0.17      
2 A 1451 1375 10.28      
3 A 1348 1277 17.16      
4 A 1170 1108 155.49      
5 A 1101 1044 113.03      
6 A 864 819 76.30      
7 A 472 447 0.44      
8 A 318 302 1.43      
9 A 171 162 0.69      
10 A 82 78 0.64      
11 B 3188 3020 10.96      
12 B 1396 1323 6.69      
13 B 1282 1215 31.85      
14 B 1127 1068 26.52      
15 B 859 814 94.07      
16 B 446 423 14.50      
17 B 401 380 8.53      
18 B 342 324 11.16      

Unscaled Zero Point Vibrational Energy (zpe) 9597.4 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 9093.6 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 CCSD=FULL/TZVP
ABC
0.09806 0.06019 0.03880

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.220 0.730 0.398
C2 0.220 -0.730 0.398
H3 -1.302 0.816 0.347
H4 1.302 -0.816 0.347
F5 0.220 1.297 1.552
F6 -0.220 -1.297 1.552
Cl7 0.483 1.601 -0.983
Cl8 -0.483 -1.601 -0.983

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52551.08632.16971.35932.33301.77712.7223
C21.52552.16971.08632.33301.35932.72231.7771
H31.08632.16973.07211.99992.66182.36032.8772
H42.16971.08633.07212.66181.99992.87722.3603
F51.35932.33301.99992.66182.63072.56683.9140
F62.33301.35932.66181.99992.63073.91402.5668
Cl71.77712.72232.36032.87722.56683.91403.3448
Cl82.72231.77712.87722.36033.91402.56683.3448

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 111.236 C1 C2 F6 107.802
C1 C2 Cl8 110.797 C2 C1 H3 111.236
C2 C1 F5 107.802 C2 C1 Cl7 110.797
H3 C1 F5 109.220 H3 C1 Cl7 108.624
H4 C2 F6 109.220 H4 C2 Cl8 108.624
F5 C1 Cl7 109.126 F6 C2 Cl8 109.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability