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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-113.471013
Energy at 298.15K-113.470980
HF Energy-113.471013
Nuclear repulsion energy145.623955
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/CEP-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 1526 1478 0.00      
2 A1 674 652 0.00      
3 A1 351 340 0.00      
4 B1 145 140 0.00      
5 B2 2153 2085 882.94      
6 B2 954 924 424.64      
7 B2 510 494 26.15      
8 E 1147 1111 266.41      
8 E 1147 1111 266.41      
9 E 548 531 34.97      
9 E 548 531 34.97      
10 E 494 479 0.32      
10 E 494 479 0.32      
11 E 85 82 0.20      
11 E 85 82 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 5430.9 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 5259.2 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/CEP-31G
ABC
0.17526 0.03874 0.03874

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-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 1.330
C3 0.000 0.000 -1.330
F4 0.000 1.125 2.129
F5 0.000 -1.125 2.129
F6 1.125 0.000 -2.129
F7 -1.125 0.000 -2.129

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.32981.32982.40832.40832.40832.4083
C21.32982.65961.38021.38023.63753.6375
C31.32982.65963.63753.63751.38021.3802
F42.40831.38023.63752.25014.54624.5462
F52.40831.38023.63752.25014.54624.5462
F62.40833.63751.38024.54624.54622.2501
F72.40833.63751.38024.54624.54622.2501

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.401 C1 C2 F5 125.401
C1 C3 F6 125.401 C1 C3 F7 125.401
C2 C1 C3 180.000 F4 C2 F5 109.197
F6 C3 F7 109.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.332      
2 C 0.063      
3 C 0.063      
4 F -0.114      
5 F -0.114      
6 F -0.114      
7 F -0.114      


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 -37.585 0.000 0.000
y 0.000 -37.585 0.000
z 0.000 0.000 -42.723
Traceless
 xyz
x 2.569 0.000 0.000
y 0.000 2.569 0.000
z 0.000 0.000 -5.138
Polar
3z2-r2-10.275
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 3.028 0.000 0.000
y 0.000 3.028 0.000
z 0.000 0.000 9.539


<r2> (average value of r2) Å2
<r2> 201.090
(<r2>)1/2 14.181