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

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/6-31+G**
 hartrees
Energy at 0K-1195.728357
Energy at 298.15K-1195.731872
HF Energy-1194.734098
Nuclear repulsion energy376.380097
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 QCISD(T)=FULL/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 3186 3186        
2 A 1420 1420        
3 A 1328 1328        
4 A 1148 1148        
5 A 1076 1076        
6 A 858 858        
7 A 466 466        
8 A 314 314        
9 A 167 167        
10 A 83 83        
11 B 3197 3197        
12 B 1356 1356        
13 B 1273 1273        
14 B 1075 1075        
15 B 851 851        
16 B 431 431        
17 B 392 392        
18 B 341 341        

Unscaled Zero Point Vibrational Energy (zpe) 9481.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9481.0 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 QCISD(T)=FULL/6-31+G**
ABC
0.09768 0.06026 0.03867

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.236 0.725 0.394
C2 0.236 -0.725 0.394
H3 -1.322 0.792 0.389
H4 1.322 -0.792 0.389
F5 0.236 1.300 1.558
F6 -0.236 -1.300 1.558
Cl7 0.415 1.616 -0.987
Cl8 -0.415 -1.616 -0.987

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52521.08822.17451.38152.33611.76752.7239
C21.52522.17451.08822.33611.38152.72391.7675
H31.08822.17453.08212.01312.63102.36432.9179
H42.17451.08823.08212.63102.01312.91792.3643
F51.38152.33612.01312.63102.64312.57083.9250
F62.33611.38152.63102.01312.64313.92502.5708
Cl71.76752.72392.36432.91792.57083.92503.3366
Cl82.72391.76752.91792.36433.92502.57083.3366

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 111.533 C1 C2 F6 106.866
C1 C2 Cl8 111.426 C2 C1 H3 111.533
C2 C1 F5 106.866 C2 C1 Cl7 111.426
H3 C1 F5 108.619 H3 C1 Cl7 109.463
H4 C2 F6 108.619 H4 C2 Cl8 109.463
F5 C1 Cl7 108.829 F6 C2 Cl8 108.829
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability