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

using model chemistry: QCISD/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/cc-pVDZ
 hartrees
Energy at 0K-1195.734644
Energy at 298.15K-1195.738176
HF Energy-1194.776663
Nuclear repulsion energy375.872863
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/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 3025 0.81      
2 A 1421 1364 13.64      
3 A 1307 1254 16.37      
4 A 1164 1117 146.46      
5 A 1097 1053 124.45      
6 A 852 817 71.40      
7 A 465 446 0.72      
8 A 315 302 1.30      
9 A 167 161 0.80      
10 A 81 78 0.59      
11 B 3163 3035 16.92      
12 B 1355 1300 5.77      
13 B 1237 1187 34.44      
14 B 1120 1075 25.88      
15 B 844 810 102.06      
16 B 436 418 12.06      
17 B 394 378 7.88      
18 B 337 323 12.12      

Unscaled Zero Point Vibrational Energy (zpe) 9454.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9071.0 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/cc-pVDZ
ABC
0.09719 0.06007 0.03859

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.226 0.732 0.402
C2 0.226 -0.732 0.402
H3 -1.323 0.808 0.360
H4 1.323 -0.808 0.360
F5 0.226 1.299 1.559
F6 -0.226 -1.299 1.559
Cl7 0.460 1.608 -0.988
Cl8 -0.460 -1.608 -0.988

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53251.10102.18481.36522.33771.78062.7321
C21.53252.18481.10102.33771.36522.73211.7806
H31.10102.18483.10082.01972.66102.37482.8979
H42.18481.10103.10082.66102.01972.89792.3748
F51.36522.33772.01972.66102.63712.57673.9256
F62.33771.36522.66102.01972.63713.92562.5767
Cl71.78062.73212.37482.89792.57673.92563.3449
Cl82.73211.78062.89792.37483.92562.57673.3449

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 111.054 C1 C2 F6 107.417
C1 C2 Cl8 110.878 C2 C1 H3 111.054
C2 C1 F5 107.417 C2 C1 Cl7 110.878
H3 C1 F5 109.493 H3 C1 Cl7 108.694
H4 C2 F6 109.493 H4 C2 Cl8 108.694
F5 C1 Cl7 109.278 F6 C2 Cl8 109.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability