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 CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: wB97X-D/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at wB97X-D/6-31G
 hartrees
Energy at 0K-1197.254133
Energy at 298.15K-1197.257496
HF Energy-1197.254133
Nuclear repulsion energy369.073033
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 wB97X-D/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 A 3213 3213 0.68      
2 A 1419 1419 1.41      
3 A 1311 1311 15.22      
4 A 1150 1150 49.18      
5 A 1063 1063 161.29      
6 A 811 811 84.85      
7 A 439 439 2.48      
8 A 301 301 1.62      
9 A 161 161 1.41      
10 A 75 75 1.10      
11 B 3225 3225 2.72      
12 B 1348 1348 6.40      
13 B 1266 1266 23.70      
14 B 1066 1066 15.61      
15 B 794 794 115.01      
16 B 415 415 18.59      
17 B 372 372 12.58      
18 B 331 331 16.37      

Unscaled Zero Point Vibrational Energy (zpe) 9378.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9378.6 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 wB97X-D/6-31G
ABC
0.09310 0.05826 0.03720

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.239 0.720 0.417
C2 0.239 -0.720 0.417
H3 -1.322 0.806 0.382
H4 1.322 -0.806 0.382
F5 0.239 1.314 1.592
F6 -0.239 -1.314 1.592
Cl7 0.453 1.642 -1.013
Cl8 -0.453 -1.642 -1.013

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.51691.08692.18351.40132.34901.83662.7688
C21.51692.18351.08692.34901.40132.76881.8366
H31.08692.18353.09712.03992.67062.40732.9484
H42.18351.08693.09712.67062.03992.94842.4073
F51.40132.34902.03992.67062.67192.63374.0003
F62.34901.40132.67062.03992.67194.00032.6337
Cl71.83662.76882.40732.94842.63374.00033.4063
Cl82.76881.83662.94842.40734.00032.63373.4063

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 112.942 C1 C2 F6 107.146
C1 C2 Cl8 110.946 C2 C1 H3 112.942
C2 C1 F5 107.146 C2 C1 Cl7 110.946
H3 C1 F5 109.487 H3 C1 Cl7 108.103
H4 C2 F6 109.487 H4 C2 Cl8 108.103
F5 C1 Cl7 108.110 F6 C2 Cl8 108.110
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.039      
2 C -0.039      
3 H 0.261      
4 H 0.261      
5 F -0.291      
6 F -0.291      
7 Cl 0.069      
8 Cl 0.069      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.403 0.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -44.178 -3.267 0.000
y -3.267 -51.629 0.000
z 0.000 0.000 -51.980
Traceless
 xyz
x 7.627 -3.267 0.000
y -3.267 -3.550 0.000
z 0.000 0.000 -4.077
Polar
3z2-r2-8.153
x2-y27.452
xy-3.267
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.259 0.943 0.000
y 0.943 5.755 0.000
z 0.000 0.000 6.881


<r2> (average value of r2) Å2
<r2> 256.078
(<r2>)1/2 16.002