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

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-1196.235413
Energy at 298.15K-1196.238996
HF Energy-1194.904256
Nuclear repulsion energy380.393921
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 MP2=FULL/cc-pVTZ
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 3174 3013 0.19      
2 A 1422 1350 8.28      
3 A 1318 1251 8.50      
4 A 1169 1110 119.91      
5 A 1100 1045 142.33      
6 A 865 821 76.35      
7 A 473 449 0.52      
8 A 318 302 1.19      
9 A 171 162 0.51      
10 A 85 81 0.52      
11 B 3187 3026 9.01      
12 B 1366 1297 5.68      
13 B 1254 1191 23.80      
14 B 1114 1058 24.83      
15 B 860 816 89.60      
16 B 441 419 10.07      
17 B 399 379 7.17      
18 B 337 320 11.03      

Unscaled Zero Point Vibrational Energy (zpe) 9526.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9044.2 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 MP2=FULL/cc-pVTZ
ABC
0.09884 0.06201 0.03963

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.224 0.723 0.399
C2 0.224 -0.723 0.399
H3 -1.302 0.796 0.356
H4 1.302 -0.796 0.356
F5 0.224 1.295 1.546
F6 -0.224 -1.295 1.546
Cl7 0.459 1.573 -0.980
Cl8 -0.459 -1.573 -0.980

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51401.08142.15331.35692.32101.75792.6890
C21.51402.15331.08142.32101.35692.68901.7579
H31.08142.15333.05161.99752.63592.34302.8477
H42.15331.08143.05162.63591.99752.84772.3430
F51.35692.32101.99752.63592.62792.55193.8820
F62.32101.35692.63591.99752.62793.88202.5519
Cl71.75792.68902.34302.84772.55193.88203.2773
Cl82.68901.75792.84772.34303.88202.55193.2773

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 111.022 C1 C2 F6 107.762
C1 C2 Cl8 110.318 C2 C1 H3 111.022
C2 C1 F5 107.762 C2 C1 Cl7 110.318
H3 C1 F5 109.490 H3 C1 Cl7 108.873
H4 C2 F6 109.490 H4 C2 Cl8 108.873
F5 C1 Cl7 109.353 F6 C2 Cl8 109.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability