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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-513.078558
Energy at 298.15K-513.078912
HF Energy-513.078558
Nuclear repulsion energy284.160585
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 PBE1PBE/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 A1 1630 1549 0.00      
2 A1 754 716 0.00      
3 A1 395 376 0.00      
4 B1 154 146 0.00      
5 B2 2179 2071 976.18      
6 B2 1088 1034 512.44      
7 B2 584 555 20.39      
8 E 1325 1260 284.67      
8 E 1325 1260 284.67      
9 E 642 610 30.51      
9 E 642 610 30.51      
10 E 557 530 1.86      
10 E 557 530 1.86      
11 E 83 79 0.16      
11 E 83 79 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 5999.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5701.5 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 PBE1PBE/6-31G*
ABC
0.19210 0.04150 0.04150

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

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 1.298
C3 0.000 0.000 -1.298
F4 0.000 1.075 2.058
F5 0.000 -1.075 2.058
F6 1.075 0.000 -2.058
F7 -1.075 0.000 -2.058

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.29761.29762.32182.32182.32182.3218
C21.29762.59531.31651.31653.52363.5236
C31.29762.59533.52363.52361.31651.3165
F42.32181.31653.52362.14924.38784.3878
F52.32181.31653.52362.14924.38784.3878
F62.32183.52361.31654.38784.38782.1492
F72.32183.52361.31654.38784.38782.1492

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.286 C1 C2 F5 125.286
C1 C3 F6 125.286 C1 C3 F7 125.286
C2 C1 C3 180.000 F4 C2 F5 109.428
F6 C3 F7 109.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 C 0.436      
3 C 0.436      
4 F -0.219      
5 F -0.219      
6 F -0.219      
7 F -0.219      


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 -35.001 0.000 0.000
y 0.000 -35.001 0.000
z 0.000 0.000 -36.165
Traceless
 xyz
x 0.582 0.000 0.000
y 0.000 0.582 0.000
z 0.000 0.000 -1.164
Polar
3z2-r2-2.328
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 2.999 0.000 0.000
y 0.000 2.999 0.000
z 0.000 0.000 8.441


<r2> (average value of r2) Å2
<r2> 236.370
(<r2>)1/2 15.374