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: M06-2X/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at M06-2X/3-21G
 hartrees
Energy at 0K-1191.387325
Energy at 298.15K-1191.390518
HF Energy-1191.387325
Nuclear repulsion energy368.167408
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 M06-2X/3-21G
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 3161 3030 0.00      
2 Ag 1440 1380 0.00      
3 Ag 1307 1253 0.00      
4 Ag 1174 1126 0.00      
5 Ag 1090 1045 0.00      
6 Ag 765 733 0.00      
7 Ag 494 474 0.00      
8 Ag 343 328 0.00      
9 Ag 256 245 0.00      
10 Au 3175 3044 0.89      
11 Au 1339 1283 22.40      
12 Au 1253 1201 41.50      
13 Au 1201 1151 172.03      
14 Au 720 690 217.78      
15 Au 356 341 10.35      
16 Au 329 315 34.13      
17 Au 153 146 3.22      
18 Au 54 51 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 9303.7 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 8919.5 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 M06-2X/3-21G
ABC
0.12977 0.04715 0.03573

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.755
C2 0.000 0.000 0.755
H3 1.006 0.000 -1.164
H4 -1.006 0.000 1.164
F5 -0.765 -1.049 -1.214
F6 0.765 1.049 1.214
Cl7 -0.780 1.607 -1.298
Cl8 0.780 -1.607 1.298

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.50951.08602.16681.37762.35861.86742.7213
C21.50952.16681.08602.35861.37762.72131.8674
H31.08602.16683.07732.05922.61072.40642.9491
H42.16681.08603.07732.61072.05922.94912.4064
F51.37762.35862.05922.61073.55562.65803.0016
F62.35861.37762.61072.05923.55563.00162.6580
Cl71.86742.72132.40642.94912.65803.00164.4166
Cl82.72131.86742.94912.40643.00162.65804.4166

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 112.166 C1 C2 F6 109.475
C1 C2 Cl8 106.905 C2 C1 H3 112.166
C2 C1 F5 109.475 C2 C1 Cl7 106.905
H3 C1 F5 112.879 H3 C1 Cl7 106.094
H4 C2 F6 112.879 H4 C2 Cl8 106.094
F5 C1 Cl7 109.056 F6 C2 Cl8 109.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.072      
2 C -0.072      
3 H 0.302      
4 H 0.302      
5 F -0.266      
6 F -0.266      
7 Cl 0.035      
8 Cl 0.035      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.451 0.131 -4.764
y 0.131 -52.297 0.827
z -4.764 0.827 -49.453
Traceless
 xyz
x 3.424 0.131 -4.764
y 0.131 -3.845 0.827
z -4.764 0.827 0.421
Polar
3z2-r20.842
x2-y24.846
xy0.131
xz-4.764
yz0.827


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.341 -1.781 0.966
y -1.781 7.902 -1.972
z 0.966 -1.972 4.620


<r2> (average value of r2) Å2
<r2> 265.332
(<r2>)1/2 16.289