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 C2F6 (hexafluoroethane)

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3D 1A1g
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-675.262244
Energy at 298.15K-675.264501
Nuclear repulsion energy447.279250
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 B3LYP/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 1300 1249 0.00      
2 A1g 728 700 0.00      
3 A1g 323 311 0.00      
4 A1u 52 50 0.00      
5 A2u 1027 987 245.37      
6 A2u 630 606 47.06      
7 Eg 1113 1070 0.00      
7 Eg 1113 1070 0.00      
8 Eg 558 537 0.00      
8 Eg 558 537 0.00      
9 Eg 337 324 0.00      
9 Eg 337 324 0.00      
10 Eu 1134 1090 467.79      
10 Eu 1134 1090 467.82      
11 Eu 459 441 8.92      
11 Eu 459 441 8.92      
12 Eu 200 192 5.04      
12 Eu 200 192 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 5831.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 5604.8 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 B3LYP/LANL2DZ
ABC
0.08741 0.05782 0.05782

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is D3d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
C2 0.000 0.000 -0.780
F3 0.000 1.301 1.258
F4 -1.126 -0.650 1.258
F5 1.126 -0.650 1.258
F6 0.000 -1.301 -1.258
F7 -1.126 0.650 -1.258
F8 1.126 0.650 -1.258

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 F8
C11.56091.38581.38581.38582.41842.41842.4184
C21.56092.41842.41842.41841.38581.38581.3858
F31.38582.41842.25302.25303.61972.83302.8330
F41.38582.41842.25302.25302.83302.83303.6197
F51.38582.41842.25302.25302.83303.61972.8330
F62.41841.38583.61972.83302.83302.25302.2530
F72.41841.38582.83302.83303.61972.25302.2530
F82.41841.38582.83303.61972.83302.25302.2530

picture of hexafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 110.175 C1 C2 F7 110.175
C1 C2 F8 110.175 C2 C1 F3 110.175
C2 C1 F4 110.175 C2 C1 F5 110.175
F3 C1 F4 108.759 F3 C1 F5 108.759
F4 C1 F5 108.759 F6 C2 F7 108.759
F6 C2 F8 108.759 F7 C2 F8 108.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.474      
2 C 0.474      
3 F -0.158      
4 F -0.158      
5 F -0.158      
6 F -0.158      
7 F -0.158      
8 F -0.158      


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 -43.975 0.000 0.000
y 0.000 -43.975 0.000
z 0.000 0.000 -43.986
Traceless
 xyz
x 0.005 0.000 0.000
y 0.000 0.005 0.000
z 0.000 0.000 -0.011
Polar
3z2-r2-0.021
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.733 0.000 0.000
y 0.000 3.732 0.000
z 0.000 0.000 3.263


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000