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

using model chemistry: QCISD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-1195.835162
Energy at 298.15K-1195.838662
HF Energy-1194.806292
Nuclear repulsion energy374.729097
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/aug-cc-pVDZ
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 3153 3055 0.09      
2 A 1404 1360 5.93      
3 A 1292 1251 11.56      
4 A 1150 1114 72.55      
5 A 1068 1034 186.25      
6 A 843 816 76.30      
7 A 461 447 0.24      
8 A 312 302 1.23      
9 A 167 161 0.36      
10 A 79 76 0.61      
11 B 3163 3064 7.04      
12 B 1335 1293 5.81      
13 B 1233 1194 23.35      
14 B 1073 1040 24.63      
15 B 836 810 89.91      
16 B 434 420 10.65      
17 B 390 378 7.92      
18 B 334 324 10.70      

Unscaled Zero Point Vibrational Energy (zpe) 9362.4 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 9069.4 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 QCISD/aug-cc-pVDZ
ABC
0.09694 0.05958 0.03840

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.227 0.732 0.396
C2 0.227 -0.732 0.396
H3 -1.321 0.822 0.351
H4 1.321 -0.822 0.351
F5 0.227 1.310 1.563
F6 -0.227 -1.310 1.563
Cl7 0.480 1.607 -0.987
Cl8 -0.480 -1.607 -0.987

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53241.09882.19361.37922.35201.78282.7292
C21.53242.19361.09882.35201.37922.72921.7828
H31.09882.19363.11172.02542.68532.37742.8983
H42.19361.09883.11172.68532.02542.89832.3774
F51.37922.35202.02542.68532.65952.57973.9388
F62.35201.37922.68532.02542.65953.93882.5797
Cl71.78282.72922.37742.89832.57973.93883.3547
Cl82.72921.78282.89832.37743.93882.57973.3547

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 111.902 C1 C2 F6 107.649
C1 C2 Cl8 110.588 C2 C1 H3 111.902
C2 C1 F5 107.649 C2 C1 Cl7 110.588
H3 C1 F5 109.114 H3 C1 Cl7 108.854
H4 C2 F6 109.114 H4 C2 Cl8 108.854
F5 C1 Cl7 108.668 F6 C2 Cl8 108.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability