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All results from a given calculation for CHFClCHClF (ethane, 1,2-dichloro-1,2-difluoro-)

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 CI 1AG
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-1195.735519
Energy at 298.15K-1195.739026
HF Energy-1194.777883
Nuclear repulsion energy374.282429
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
(Å4/u)
Dep P Dep U
1 Ag 3155 3027 0.00      
2 Ag 1425 1367 0.00      
3 Ag 1325 1272 0.00      
4 Ag 1162 1115 0.00      
5 Ag 1107 1062 0.00      
6 Ag 848 813 0.00      
7 Ag 522 501 0.00      
8 Ag 380 364 0.00      
9 Ag 274 263 0.00      
10 Au 3164 3036 17.04      
11 Au 1335 1281 29.33      
12 Au 1242 1192 43.29      
13 Au 1155 1108 258.16      
14 Au 795 763 190.17      
15 Au 406 390 3.25      
16 Au 370 355 28.85      
17 Au 174 167 1.38      
18 Au 75 72 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 9456.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9072.7 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
0.13340 0.04873 0.03687

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

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.765
C2 0.000 0.000 0.765
H3 1.028 0.000 -1.158
H4 -1.028 0.000 1.158
F5 -0.669 -1.100 -1.208
F6 0.669 1.100 1.208
Cl7 -0.821 1.470 -1.358
Cl8 0.821 -1.470 1.358

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53091.10092.18151.36162.35661.78532.7104
C21.53092.18151.10092.35661.36162.71041.7853
H31.10092.18153.09812.02332.63462.37112.9222
H42.18151.10093.09812.63462.02332.92222.3711
F51.36162.35662.02332.63463.53162.57932.9909
F62.35661.36162.63462.02333.53162.99092.5793
Cl71.78532.71042.37112.92222.57932.99094.3271
Cl82.71041.78532.92222.37112.99092.57934.3271

picture of ethane, 1,2-dichloro-1,2-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.919 C1 C2 F6 108.983
C1 C2 Cl8 109.396 C2 C1 H3 110.919
C2 C1 F5 108.983 C2 C1 Cl7 109.396
H3 C1 F5 110.047 H3 C1 Cl7 108.121
H4 C2 F6 110.047 H4 C2 Cl8 108.121
F5 C1 Cl7 109.352 F6 C2 Cl8 109.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability