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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-1189.345717
Energy at 298.15K-1189.348915
HF Energy-1188.831184
Nuclear repulsion energy364.898275
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 MP2/3-21G
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 3220 3073 1.33      
2 A 1447 1381 2.85      
3 A 1316 1256 23.12      
4 A 1143 1091 125.45      
5 A 1063 1014 52.57      
6 A 758 723 66.81      
7 A 397 379 5.76      
8 A 280 267 0.89      
9 A 154 147 1.74      
10 A 76 72 0.92      
11 B 3233 3086 3.21      
12 B 1377 1314 2.09      
13 B 1259 1202 35.13      
14 B 1104 1054 4.48      
15 B 735 701 105.27      
16 B 396 378 17.27      
17 B 346 331 15.61      
18 B 313 299 10.32      

Unscaled Zero Point Vibrational Energy (zpe) 9307.5 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 8884.0 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 MP2/3-21G
ABC
0.08925 0.05777 0.03650

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.235 0.723 0.446
C2 0.235 -0.723 0.446
H3 -1.314 0.814 0.358
H4 1.314 -0.814 0.358
F5 0.235 1.324 1.618
F6 -0.235 -1.324 1.618
Cl7 0.517 1.629 -1.035
Cl8 -0.517 -1.629 -1.035

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52001.08562.18341.39912.35891.89292.7939
C21.52002.18341.08562.35891.39912.79391.8929
H31.08562.18343.09032.06132.70592.44072.9230
H42.18341.08563.09032.70592.06132.92302.4407
F51.39912.35892.06132.70592.69052.68574.0413
F62.35891.39912.70592.06132.69054.04132.6857
Cl71.89292.79392.44072.92302.68574.04133.4189
Cl82.79391.89292.92302.44074.04132.68573.4189

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 112.790 C1 C2 F6 107.740
C1 C2 Cl8 109.411 C2 C1 H3 112.790
C2 C1 F5 107.740 C2 C1 Cl7 109.411
H3 C1 F5 111.493 H3 C1 Cl7 106.914
H4 C2 F6 111.493 H4 C2 Cl8 106.914
F5 C1 Cl7 108.406 F6 C2 Cl8 108.406
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability