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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-1196.197326
Energy at 298.15K-1196.200841
HF Energy-1194.903908
Nuclear repulsion energy377.668293
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 CCSD(T)/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 3132 3053        
2 A 1412 1376        
3 A 1301 1268        
4 A 1156 1127        
5 A 1087 1060        
6 A 843 822        
7 A 462 450        
8 A 312 305        
9 A 167 162        
10 A 80 78        
11 B 3144 3065        
12 B 1351 1317        
13 B 1237 1206        
14 B 1111 1083        
15 B 837 816        
16 B 437 426        
17 B 391 381        
18 B 332 324        

Unscaled Zero Point Vibrational Energy (zpe) 9396.1 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 9159.4 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 CCSD(T)/cc-pVTZ
ABC
0.09790 0.06076 0.03901

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.223 0.730 0.402
C2 0.223 -0.730 0.402
H3 -1.306 0.812 0.351
H4 1.306 -0.812 0.351
F5 0.223 1.300 1.552
F6 -0.223 -1.300 1.552
Cl7 0.476 1.590 -0.984
Cl8 -0.476 -1.590 -0.984

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52601.08782.17211.35952.33341.77432.7139
C21.52602.17211.08782.33341.35952.71391.7743
H31.08782.17213.07632.00482.66072.35862.8710
H42.17211.08783.07632.66072.00482.87102.3586
F51.35952.33342.00482.66072.63802.56573.9082
F62.33341.35952.66072.00482.63803.90822.5657
Cl71.77432.71392.35862.87102.56573.90823.3191
Cl82.71391.77432.87102.35863.90822.56573.3191

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 111.301 C1 C2 F6 107.791
C1 C2 Cl8 110.410 C2 C1 H3 111.301
C2 C1 F5 107.791 C2 C1 Cl7 110.410
H3 C1 F5 109.509 H3 C1 Cl7 108.605
H4 C2 F6 109.509 H4 C2 Cl8 108.605
F5 C1 Cl7 109.200 F6 C2 Cl8 109.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability