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: PBEPBE/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CI 1AG
Energy calculated at PBEPBE/6-311G**
 hartrees
Energy at 0K-1196.926660
Energy at 298.15K-1196.929949
HF Energy-1196.926660
Nuclear repulsion energy372.214287
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 PBEPBE/6-311G**
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 3042 3014 0.00      
2 Ag 1348 1335 0.00      
3 Ag 1259 1248 0.00      
4 Ag 1074 1065 0.00      
5 Ag 1036 1026 0.00      
6 Ag 776 769 0.00      
7 Ag 500 495 0.00      
8 Ag 355 352 0.00      
9 Ag 259 257 0.00      
10 Au 3053 3026 13.86      
11 Au 1276 1265 14.87      
12 Au 1186 1175 38.80      
13 Au 1080 1070 265.61      
14 Au 723 716 258.32      
15 Au 387 383 1.62      
16 Au 355 352 28.13      
17 Au 166 165 1.41      
18 Au 67 67 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 8970.9 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 8889.3 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 PBEPBE/6-311G**
ABC
0.13197 0.04816 0.03644

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is Ci

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.767
C2 0.000 0.000 0.767
H3 1.022 0.000 -1.169
H4 -1.022 0.000 1.169
F5 -0.684 -1.094 -1.220
F6 0.684 1.094 1.220
Cl7 -0.815 1.493 -1.358
Cl8 0.815 -1.493 1.358

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.53351.09852.18941.36742.36891.80102.7220
C21.53352.18941.09852.36891.36742.72201.8010
H31.09852.18943.10622.02712.64962.37512.9429
H42.18941.09853.10622.64962.02712.94292.3751
F51.36742.36892.02712.64963.55122.59403.0090
F62.36891.36742.64962.02713.55123.00902.5940
Cl71.80102.72202.37512.94292.59403.00904.3537
Cl82.72201.80102.94292.37513.00902.59404.3537

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 111.499 C1 C2 F6 109.361
C1 C2 Cl8 109.170 C2 C1 H3 111.499
C2 C1 F5 109.361 C2 C1 Cl7 109.170
H3 C1 F5 110.107 H3 C1 Cl7 107.509
H4 C2 F6 110.107 H4 C2 Cl8 107.509
F5 C1 Cl7 109.146 F6 C2 Cl8 109.146
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 C 0.005      
3 H 0.201      
4 H 0.201      
5 F -0.168      
6 F -0.168      
7 Cl -0.038      
8 Cl -0.038      


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 -47.091 -0.537 -3.542
y -0.537 -50.077 -0.259
z -3.542 -0.259 -49.001
Traceless
 xyz
x 2.448 -0.537 -3.542
y -0.537 -2.032 -0.259
z -3.542 -0.259 -0.417
Polar
3z2-r2-0.833
x2-y22.987
xy-0.537
xz-3.542
yz-0.259


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.529 -1.736 1.040
y -1.736 8.430 -1.988
z 1.040 -1.988 6.422


<r2> (average value of r2) Å2
<r2> 260.172
(<r2>)1/2 16.130