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All results from a given calculation for CHFClCHClF (ethane, 1,2-dichloro-1,2-difluoro-)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-1195.912646
Energy at 298.15K-1195.916175
HF Energy-1194.748019
Nuclear repulsion energy377.093382
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/6-31G(2df,p)
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 3164 2998 0.00      
2 Ag 1443 1367 0.00      
3 Ag 1348 1277 0.00      
4 Ag 1179 1117 0.00      
5 Ag 1123 1064 0.00      
6 Ag 856 811 0.00      
7 Ag 529 502 0.00      
8 Ag 383 363 0.00      
9 Ag 275 260 0.00      
10 Au 3176 3009 9.66      
11 Au 1365 1293 24.76      
12 Au 1257 1191 38.47      
13 Au 1188 1126 218.98      
14 Au 806 764 194.22      
15 Au 408 386 3.01      
16 Au 369 349 25.77      
17 Au 173 164 1.10      
18 Au 78 74 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 9559.2 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 9056.3 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/6-31G(2df,p)
ABC
0.13574 0.04939 0.03742

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.762
C2 0.000 0.000 0.762
H3 1.017 0.000 -1.155
H4 -1.017 0.000 1.155
F5 -0.670 -1.083 -1.200
F6 0.670 1.083 1.200
Cl7 -0.814 1.468 -1.342
Cl8 0.814 -1.468 1.342

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52471.09002.17001.34632.33901.77592.6918
C21.52472.17001.09002.33901.34632.69181.7759
H31.09002.17003.07732.00512.61452.35422.9034
H42.17001.09003.07732.61452.00512.90342.3542
F51.34632.33902.00512.61453.49892.55882.9683
F62.33901.34632.61452.00513.49892.96832.5588
Cl71.77592.69182.35422.90342.55882.96834.2982
Cl82.69181.77592.90342.35422.96832.55884.2982

picture of ethane, 1,2-dichloro-1,2-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 111.099 C1 C2 F6 108.955
C1 C2 Cl8 109.050 C2 C1 H3 111.099
C2 C1 F5 108.955 C2 C1 Cl7 109.050
H3 C1 F5 110.329 H3 C1 Cl7 108.069
H4 C2 F6 110.329 H4 C2 Cl8 108.069
F5 C1 Cl7 109.309 F6 C2 Cl8 109.309
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability