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

using model chemistry: CCSD=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-1195.973452
Energy at 298.15K-1195.977050
HF Energy-1194.746540
Nuclear repulsion energy380.083471
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=FULL/6-31G(2df,p)
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 3175 2990 0.62      
2 A 1453 1368 10.98      
3 A 1339 1261 13.68      
4 A 1199 1129 168.31      
5 A 1127 1061 74.60      
6 A 871 820 66.39      
7 A 475 447 0.74      
8 A 320 302 1.21      
9 A 169 159 0.51      
10 A 85 80 0.63      
11 B 3187 3001 9.79      
12 B 1393 1312 6.43      
13 B 1269 1195 28.05      
14 B 1165 1097 19.37      
15 B 866 815 95.79      
16 B 445 419 10.31      
17 B 401 378 6.93      
18 B 343 323 11.06      

Unscaled Zero Point Vibrational Energy (zpe) 9640.4 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 9077.4 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=FULL/6-31G(2df,p)
ABC
0.09958 0.06123 0.03946

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.221 0.727 0.394
C2 0.221 -0.727 0.394
H3 -1.305 0.803 0.342
H4 1.305 -0.803 0.342
F5 0.221 1.277 1.541
F6 -0.221 -1.277 1.541
Cl7 0.476 1.591 -0.975
Cl8 -0.476 -1.591 -0.975

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52051.08772.16201.34632.30951.76222.7044
C21.52052.16201.08772.30951.34632.70441.7622
H31.08772.16203.06461.99762.63482.35022.8553
H42.16201.08773.06462.63481.99762.85532.3502
F51.34632.30951.99762.63482.59272.54783.8782
F62.30951.34632.63481.99762.59273.87822.5478
Cl71.76222.70442.35022.85532.54783.87823.3211
Cl82.70441.76222.85532.35023.87822.54783.3211

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 110.885 C1 C2 F6 107.182
C1 C2 Cl8 110.725 C2 C1 H3 110.885
C2 C1 F5 107.182 C2 C1 Cl7 110.725
H3 C1 F5 109.863 H3 C1 Cl7 108.798
H4 C2 F6 109.863 H4 C2 Cl8 108.798
F5 C1 Cl7 109.368 F6 C2 Cl8 109.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability