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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-1195.626055
Energy at 298.15K-1195.629611
HF Energy-1194.734098
Nuclear repulsion energy377.343583
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 MP2/6-31+G**
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 3214 3023 0.12      
2 A 1425 1341 2.49      
3 A 1339 1259 23.55      
4 A 1157 1089 46.22      
5 A 1080 1016 216.50      
6 A 875 823 87.99      
7 A 474 445 0.11      
8 A 316 297 1.28      
9 A 169 159 0.56      
10 A 86 80 0.62      
11 B 3225 3034 7.37      
12 B 1363 1282 10.87      
13 B 1283 1207 21.50      
14 B 1076 1012 25.96      
15 B 868 817 97.60      
16 B 436 410 11.23      
17 B 396 373 9.78      
18 B 344 324 12.37      

Unscaled Zero Point Vibrational Energy (zpe) 9563.0 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 8994.9 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 MP2/6-31+G**
ABC
0.09800 0.06071 0.03889

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.235 0.724 0.391
C2 0.235 -0.724 0.391
H3 -1.320 0.791 0.387
H4 1.320 -0.791 0.387
F5 0.235 1.300 1.557
F6 -0.235 -1.300 1.557
Cl7 0.413 1.608 -0.985
Cl8 -0.413 -1.608 -0.985

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52221.08772.17091.38242.33541.75892.7132
C21.52222.17091.08772.33541.38242.71321.7589
H31.08772.17093.07812.01162.62992.35702.9080
H42.17091.08773.07812.62992.01162.90802.3570
F51.38242.33542.01162.62992.64142.56643.9157
F62.33541.38242.62992.01162.64143.91572.5664
Cl71.75892.71322.35702.90802.56643.91573.3199
Cl82.71321.75892.90802.35703.91572.56643.3199

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 111.483 C1 C2 F6 106.934
C1 C2 Cl8 111.360 C2 C1 H3 111.483
C2 C1 F5 106.934 C2 C1 Cl7 111.360
H3 C1 F5 108.466 H3 C1 Cl7 109.519
H4 C2 F6 108.466 H4 C2 Cl8 109.519
F5 C1 Cl7 108.977 F6 C2 Cl8 108.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability