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

using model chemistry: CCD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-1189.767049
Energy at 298.15K-1189.770436
HF Energy-1189.050314
Nuclear repulsion energy372.667277
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/3-21G*
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 3152 3015 1.73      
2 A 1437 1375 0.49      
3 A 1350 1291 25.01      
4 A 1128 1079 98.31      
5 A 1061 1014 28.72      
6 A 821 786 66.11      
7 A 439 420 1.68      
8 A 292 279 1.34      
9 A 163 156 1.25      
10 A 80 76 0.87      
11 B 3166 3029 7.81      
12 B 1379 1319 5.20      
13 B 1302 1245 20.71      
14 B 1105 1057 7.37      
15 B 802 767 100.04      
16 B 407 390 7.82      
17 B 372 356 19.13      
18 B 344 329 14.09      

Unscaled Zero Point Vibrational Energy (zpe) 9400.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 8991.3 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/3-21G*
ABC
0.09463 0.05984 0.03801

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.246 0.727 0.405
C2 0.246 -0.727 0.405
H3 -1.336 0.767 0.386
H4 1.336 -0.767 0.386
F5 0.246 1.313 1.583
F6 -0.246 -1.313 1.583
Cl7 0.396 1.622 -1.004
Cl8 -0.396 -1.622 -1.004

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53441.09052.17561.40562.35551.78832.7428
C21.53442.17561.09052.35551.40562.74281.7883
H31.09052.17563.08052.05802.63532.37952.9193
H42.17561.09053.08052.63532.05802.91932.3795
F51.40562.35552.05802.63532.67132.60983.9648
F62.35551.40562.63532.05802.67133.96482.6098
Cl71.78832.74282.37952.91932.60983.96483.3398
Cl82.74281.78832.91932.37953.96482.60983.3398

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 110.830 C1 C2 F6 106.405
C1 C2 Cl8 111.044 C2 C1 H3 110.830
C2 C1 F5 106.405 C2 C1 Cl7 111.044
H3 C1 F5 110.441 H3 C1 Cl7 109.076
H4 C2 F6 110.441 H4 C2 Cl8 109.076
F5 C1 Cl7 109.009 F6 C2 Cl8 109.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability