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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-1195.901808
Energy at 298.15K-1195.905384
HF Energy-1194.746458
Nuclear repulsion energy378.938047
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 CCD/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 A 3173 3005 0.59      
2 A 1448 1371 13.00      
3 A 1337 1266 13.23      
4 A 1195 1132 186.39      
5 A 1121 1061 53.56      
6 A 869 823 66.34      
7 A 472 447 0.69      
8 A 318 301 1.22      
9 A 167 158 0.48      
10 A 83 79 0.67      
11 B 3185 3016 8.97      
12 B 1392 1319 7.00      
13 B 1262 1195 27.72      
14 B 1167 1106 20.83      
15 B 864 819 95.93      
16 B 443 419 10.50      
17 B 399 378 6.95      
18 B 339 321 11.41      

Unscaled Zero Point Vibrational Energy (zpe) 9616.1 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 9108.3 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 CCD/6-31G(2df,p)
ABC
0.09922 0.06070 0.03918

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.222 0.730 0.396
C2 0.222 -0.730 0.396
H3 -1.307 0.809 0.344
H4 1.307 -0.809 0.344
F5 0.222 1.281 1.543
F6 -0.222 -1.281 1.543
Cl7 0.475 1.600 -0.977
Cl8 -0.475 -1.600 -0.977

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52641.08952.17051.34742.31501.76842.7164
C21.52642.17051.08952.31501.34742.71641.7684
H31.08952.17053.07501.99992.64262.35492.8708
H42.17051.08953.07502.64261.99992.87082.3549
F51.34742.31501.99992.64262.59982.55273.8903
F62.31501.34742.64261.99992.59983.89032.5527
Cl71.76842.71642.35492.87082.55273.89033.3375
Cl82.71641.76842.87082.35493.89032.55273.3375

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 111.046 C1 C2 F6 107.165
C1 C2 Cl8 110.849 C2 C1 H3 111.046
C2 C1 F5 107.165 C2 C1 Cl7 110.849
H3 C1 F5 109.850 H3 C1 Cl7 108.635
H4 C2 F6 109.850 H4 C2 Cl8 108.635
F5 C1 Cl7 109.276 F6 C2 Cl8 109.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability