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

using model chemistry: MP2=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-1195.973730
Energy at 298.15K-1195.977313
HF Energy-1194.876155
Nuclear repulsion energy377.626028
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/TZVP
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 3183 3033 0.13      
2 A 1437 1369 7.78      
3 A 1339 1276 15.40      
4 A 1157 1102 113.38      
5 A 1091 1039 156.91      
6 A 866 825 85.17      
7 A 472 450 0.52      
8 A 317 302 1.32      
9 A 172 164 0.71      
10 A 83 79 0.60      
11 B 3195 3044 9.68      
12 B 1386 1320 6.65      
13 B 1277 1217 29.22      
14 B 1101 1049 26.87      
15 B 857 817 93.44      
16 B 444 423 13.86      
17 B 400 381 8.49      
18 B 342 325 11.08      

Unscaled Zero Point Vibrational Energy (zpe) 9560.1 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 9107.9 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/TZVP
ABC
0.09790 0.06070 0.03898

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.220 0.729 0.396
C2 0.220 -0.729 0.396
H3 -1.302 0.813 0.347
H4 1.302 -0.813 0.347
F5 0.220 1.298 1.554
F6 -0.220 -1.298 1.554
Cl7 0.479 1.592 -0.983
Cl8 -0.479 -1.592 -0.983

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52221.08632.16711.36362.33391.77152.7117
C21.52222.16711.08632.33391.36362.71171.7715
H31.08632.16713.07022.00272.66132.35612.8685
H42.16711.08633.07022.66132.00272.86852.3561
F51.36362.33392.00272.66132.63292.56783.9088
F62.33391.36362.66132.00272.63293.90882.5678
Cl71.77152.71172.35612.86852.56783.90883.3244
Cl82.71171.77152.86852.35613.90882.56783.3244

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 111.262 C1 C2 F6 107.821
C1 C2 Cl8 110.607 C2 C1 H3 111.262
C2 C1 F5 107.821 C2 C1 Cl7 110.607
H3 C1 F5 109.141 H3 C1 Cl7 108.689
H4 C2 F6 109.141 H4 C2 Cl8 108.689
F5 C1 Cl7 109.289 F6 C2 Cl8 109.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability