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

using model chemistry: QCISD(T)/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(T)/cc-pVDZ
 hartrees
Energy at 0K-1195.756748
Energy at 298.15K-1195.760234
HF Energy-1194.776143
Nuclear repulsion energy375.196121
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)/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 3131 2984        
2 A 1405 1339        
3 A 1293 1232        
4 A 1150 1096        
5 A 1083 1033        
6 A 839 799        
7 A 458 437        
8 A 312 297        
9 A 165 158        
10 A 80 77        
11 B 3141 2994        
12 B 1342 1279        
13 B 1223 1165        
14 B 1103 1052        
15 B 830 791        
16 B 431 411        
17 B 389 370        
18 B 333 318        

Unscaled Zero Point Vibrational Energy (zpe) 9353.8 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 8915.1 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)/cc-pVDZ
ABC
0.09664 0.05998 0.03848

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.226 0.733 0.404
C2 0.226 -0.733 0.404
H3 -1.325 0.809 0.359
H4 1.325 -0.809 0.359
F5 0.226 1.301 1.563
F6 -0.226 -1.301 1.563
Cl7 0.464 1.608 -0.991
Cl8 -0.464 -1.608 -0.991

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53441.10292.18821.36792.34171.78502.7353
C21.53442.18821.10292.34171.36792.73531.7850
H31.10292.18823.10592.02442.66702.37952.8997
H42.18821.10293.10592.66702.02442.89972.3795
F51.36792.34172.02442.66702.64182.58363.9323
F62.34171.36792.66702.02442.64183.93232.5836
Cl71.78502.73532.37952.89972.58363.93233.3462
Cl82.73531.78502.89972.37953.93232.58363.3462

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 111.076 C1 C2 F6 107.437
C1 C2 Cl8 110.751 C2 C1 H3 111.076
C2 C1 F5 107.437 C2 C1 Cl7 110.751
H3 C1 F5 109.562 H3 C1 Cl7 108.650
H4 C2 F6 109.562 H4 C2 Cl8 108.650
F5 C1 Cl7 109.342 F6 C2 Cl8 109.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability