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/STO-3G

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/STO-3G
 hartrees
Energy at 0K-1182.957485
Energy at 298.15K-1182.960428
HF Energy-1182.897056
Nuclear repulsion energy361.584906
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/STO-3G
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 3337 3337 0.00      
2 Ag 1499 1499 0.00      
3 Ag 1345 1345 0.00      
4 Ag 1240 1240 0.00      
5 Ag 1067 1067 0.00      
6 Ag 846 846 0.00      
7 Ag 510 510 0.00      
8 Ag 359 359 0.00      
9 Ag 240 240 0.00      
10 Au 3343 3343 2.12      
11 Au 1400 1400 45.26      
12 Au 1268 1268 34.59      
13 Au 1256 1256 99.65      
14 Au 806 806 140.43      
15 Au 382 382 6.83      
16 Au 359 359 21.05      
17 Au 141 141 3.68      
18 Au 44 44 2.73      

Unscaled Zero Point Vibrational Energy (zpe) 9721.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9721.1 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 B2PLYP=FULL/STO-3G
ABC
0.12307 0.04568 0.03438

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.802
C2 0.000 0.000 0.802
H3 1.050 0.000 -1.189
H4 -1.050 0.000 1.189
F5 -0.736 -1.048 -1.306
F6 0.736 1.048 1.306
Cl7 -0.738 1.639 -1.334
Cl8 0.738 -1.639 1.334

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.60321.11932.25091.37672.46671.87492.7915
C21.60322.25091.11932.46671.37672.79151.8749
H31.11932.25093.17302.07412.72522.43003.0252
H42.25091.11933.17302.72522.07413.02522.4300
F51.37672.46672.07412.72523.65912.68783.0811
F62.46671.37672.72522.07413.65913.08112.6878
Cl71.87492.79152.43003.02522.68783.08114.4773
Cl82.79151.87493.02522.43003.08112.68784.4773

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 110.269 C1 C2 F6 111.512
C1 C2 Cl8 106.495 C2 C1 H3 110.269
C2 C1 F5 111.512 C2 C1 Cl7 106.495
H3 C1 F5 111.984 H3 C1 Cl7 105.717
H4 C2 F6 111.984 H4 C2 Cl8 105.717
F5 C1 Cl7 110.566 F6 C2 Cl8 110.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability