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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-1195.835443
Energy at 298.15K-1195.839033
HF Energy-1194.839487
Nuclear repulsion energy377.504871
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/6-311G*
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 3151 3017 0.66      
2 A 1449 1387 9.95      
3 A 1356 1298 19.35      
4 A 1168 1119 134.77      
5 A 1108 1061 129.36      
6 A 870 833 83.12      
7 A 473 453 0.61      
8 A 322 308 1.53      
9 A 172 165 0.78      
10 A 84 81 0.64      
11 B 3162 3027 16.63      
12 B 1391 1332 12.24      
13 B 1282 1228 31.02      
14 B 1125 1077 23.80      
15 B 862 825 108.47      
16 B 444 425 13.23      
17 B 403 386 8.52      
18 B 342 327 11.66      

Unscaled Zero Point Vibrational Energy (zpe) 9582.2 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 9174.0 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 QCISD/6-311G*
ABC
0.09831 0.06042 0.03889

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.224 0.730 0.396
C2 0.224 -0.730 0.396
H3 -1.313 0.806 0.362
H4 1.313 -0.806 0.362
F5 0.224 1.293 1.551
F6 -0.224 -1.293 1.551
Cl7 0.457 1.605 -0.982
Cl8 -0.457 -1.605 -0.982

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52661.09172.17341.36102.32891.76982.7217
C21.52662.17341.09172.32891.36102.72171.7698
H31.09172.17343.08152.00372.64692.36152.8909
H42.17341.09173.08152.64692.00372.89092.3615
F51.36102.32892.00372.64692.62432.56353.9094
F62.32891.36102.64692.00372.62433.90942.5635
Cl71.76982.72172.36152.89092.56353.90943.3382
Cl82.72171.76982.89092.36153.90942.56353.3382

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 111.121 C1 C2 F6 107.373
C1 C2 Cl8 111.092 C2 C1 H3 111.121
C2 C1 F5 107.373 C2 C1 Cl7 111.092
H3 C1 F5 109.062 H3 C1 Cl7 108.914
H4 C2 F6 109.062 H4 C2 Cl8 108.914
F5 C1 Cl7 109.233 F6 C2 Cl8 109.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability