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

using model chemistry: MP4=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-1195.894624
Energy at 298.15K-1195.898052
HF Energy-1194.805282
Nuclear repulsion energy374.073106
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 MP4=FULL/aug-cc-pVDZ
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 3133 3055        
2 A 1377 1343        
3 A 1269 1237        
4 A 1132 1104        
5 A 1036 1011        
6 A 826 806        
7 A 452 441        
8 A 306 299        
9 A 164 160        
10 A 77 75        
11 B 3143 3065        
12 B 1312 1280        
13 B 1213 1183        
14 B 1033 1007        
15 B 816 796        
16 B 427 417        
17 B 382 372        
18 B 328 320        

Unscaled Zero Point Vibrational Energy (zpe) 9213.6 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 8985.1 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 MP4=FULL/aug-cc-pVDZ
ABC
0.09624 0.05962 0.03833

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.227 0.732 0.395
C2 0.227 -0.732 0.395
H3 -1.322 0.825 0.347
H4 1.322 -0.825 0.347
F5 0.227 1.314 1.569
F6 -0.227 -1.314 1.569
Cl7 0.490 1.602 -0.990
Cl8 -0.490 -1.602 -0.990

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53191.10032.19651.38652.35811.78612.7265
C21.53192.19651.10032.35811.38652.72651.7861
H31.10032.19653.11692.03252.69562.38222.8934
H42.19651.10033.11692.69562.03252.89342.3822
F51.38652.35812.03252.69562.66642.58863.9451
F62.35811.38652.69562.03252.66643.94512.5886
Cl71.78612.72652.38222.89342.58863.94513.3503
Cl82.72651.78612.89342.38223.94512.58863.3503

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 112.081 C1 C2 F6 107.705
C1 C2 Cl8 110.283 C2 C1 H3 112.081
C2 C1 F5 107.705 C2 C1 Cl7 110.283
H3 C1 F5 109.092 H3 C1 Cl7 108.910
H4 C2 F6 109.092 H4 C2 Cl8 108.910
F5 C1 Cl7 108.703 F6 C2 Cl8 108.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability