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

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-1195.042282
Energy at 298.15K-1195.045701
HF Energy-1194.577097
Nuclear repulsion energy367.390896
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 CISD/6-31G
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 3276 3072 0.90      
2 A 1462 1371 1.37      
3 A 1351 1267 24.64      
4 A 1186 1112 34.33      
5 A 1086 1018 153.29      
6 A 817 766 75.49      
7 A 440 412 1.58      
8 A 309 289 2.02      
9 A 164 153 1.41      
10 A 78 73 1.21      
11 B 3286 3082 1.98      
12 B 1383 1297 8.43      
13 B 1303 1222 29.17      
14 B 1088 1021 12.38      
15 B 802 752 117.51      
16 B 419 392 20.00      
17 B 376 353 13.46      
18 B 336 315 18.40      

Unscaled Zero Point Vibrational Energy (zpe) 9579.2 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 8983.4 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 CISD/6-31G
ABC
0.09290 0.05733 0.03675

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.245 0.717 0.414
C2 0.245 -0.717 0.414
H3 -1.325 0.798 0.395
H4 1.325 -0.798 0.395
F5 0.245 1.314 1.595
F6 -0.245 -1.314 1.595
Cl7 0.434 1.667 -1.014
Cl8 -0.434 -1.667 -1.014

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51611.08342.18221.41072.34951.84482.7862
C21.51612.18221.08342.34951.41072.78621.8448
H31.08342.18223.09382.04242.65842.41562.9762
H42.18221.08343.09382.65842.04242.97622.4156
F51.41072.34952.04242.65842.67292.64004.0195
F62.34951.41072.65842.04242.67294.01952.6400
Cl71.84482.78622.41562.97622.64004.01953.4455
Cl82.78621.84482.97622.41564.01952.64003.4455

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 113.116 C1 C2 F6 106.731
C1 C2 Cl8 111.615 C2 C1 H3 113.116
C2 C1 F5 106.731 C2 C1 Cl7 111.615
H3 C1 F5 109.248 H3 C1 Cl7 108.346
H4 C2 F6 109.248 H4 C2 Cl8 108.346
F5 C1 Cl7 107.623 F6 C2 Cl8 107.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability