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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

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 D2D 1A1
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-513.238072
Energy at 298.15K-513.238290
HF Energy-513.238072
Nuclear repulsion energy281.616667
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 A1 1532 1516 0.00      
2 A1 714 707 0.00      
3 A1 382 378 0.00      
4 B1 144 142 0.00      
5 B2 2081 2060 934.68      
6 B2 1010 999 527.50      
7 B2 565 559 18.87      
8 E 1190 1178 293.69      
8 E 1190 1178 293.69      
9 E 619 613 21.86      
9 E 619 613 21.86      
10 E 533 527 1.52      
10 E 533 527 1.52      
11 E 82 81 0.09      
11 E 82 81 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 5638.0 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 5579.4 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
0.18838 0.04083 0.04083

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.000 1.303
C3 0.000 0.000 -1.303
F4 0.000 1.085 2.076
F5 0.000 -1.085 2.076
F6 1.085 0.000 -2.076
F7 -1.085 0.000 -2.076

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.30281.30282.34212.34212.34212.3421
C21.30282.60571.33211.33213.54833.5483
C31.30282.60573.54833.54831.33211.3321
F42.34211.33213.54832.17034.42564.4256
F52.34211.33213.54832.17034.42564.4256
F62.34213.54831.33214.42564.42562.1703
F72.34213.54831.33214.42564.42562.1703

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.453 C1 C2 F5 125.453
C1 C3 F6 125.453 C1 C3 F7 125.453
C2 C1 C3 180.000 F4 C2 F5 109.095
F6 C3 F7 109.095
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 -0.066      
2 C 0.289      
3 C 0.289      
4 F -0.128      
5 F -0.128      
6 F -0.128      
7 F -0.128      


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 -35.857 0.000 0.000
y 0.000 -35.857 0.000
z 0.000 0.000 -37.215
Traceless
 xyz
x 0.679 0.000 0.000
y 0.000 0.679 0.000
z 0.000 0.000 -1.358
Polar
3z2-r2-2.716
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 3.274 0.000 0.000
y 0.000 3.274 0.000
z 0.000 0.000 8.900


<r2> (average value of r2) Å2
<r2> 240.518
(<r2>)1/2 15.509