return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at B2PLYP=FULL/6-31G
 hartrees
Energy at 0K-1196.686995
Energy at 298.15K-1196.690248
HF Energy-1196.509579
Nuclear repulsion energy364.701459
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 B2PLYP=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3222 3222 0.00      
2 Ag 1418 1418 0.00      
3 Ag 1324 1324 0.00      
4 Ag 1145 1145 0.00      
5 Ag 1040 1040 0.00      
6 Ag 771 771 0.00      
7 Ag 494 494 0.00      
8 Ag 346 346 0.00      
9 Ag 257 257 0.00      
10 Au 3234 3234 2.73      
11 Au 1326 1326 14.75      
12 Au 1261 1261 38.40      
13 Au 1075 1075 184.75      
14 Au 710 710 211.14      
15 Au 368 368 8.04      
16 Au 354 354 38.66      
17 Au 164 164 2.50      
18 Au 72 72 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 9289.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9289.4 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 B2PLYP=FULL/6-31G
ABC
0.12810 0.04601 0.03495

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.757
C2 0.000 0.000 0.757
H3 0.997 0.000 -1.187
H4 -0.997 0.000 1.187
F5 -0.723 -1.124 -1.207
F6 0.723 1.124 1.207
Cl7 -0.866 1.530 -1.376
Cl8 0.866 -1.530 1.376

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51431.08552.18451.40992.37541.86322.7637
C21.51432.18451.08552.37541.40992.76371.8632
H31.08552.18453.09962.05482.65812.41762.9870
H42.18451.08553.09962.65812.05482.98702.4176
F51.40992.37542.05482.65813.60112.66263.0590
F62.37541.40992.65812.05483.60113.05902.6626
Cl71.86322.76372.41762.98702.66263.05904.4638
Cl82.76371.86322.98702.41763.05902.66264.4638

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 113.300 C1 C2 F6 108.594
C1 C2 Cl8 109.389 C2 C1 H3 113.300
C2 C1 F5 108.594 C2 C1 Cl7 109.389
H3 C1 F5 110.175 H3 C1 Cl7 107.179
H4 C2 F6 110.175 H4 C2 Cl8 107.179
F5 C1 Cl7 108.076 F6 C2 Cl8 108.076
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability