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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-505.783283
Energy at 298.15K-505.783160
HF Energy-505.686092
Nuclear repulsion energy274.741186
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 B2PLYP/STO-3G
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 1621 1621 0.00      
2 A1 721 721 0.00      
3 A1 361 361 0.00      
4 B1 153 153 0.00      
5 B2 2153 2153 730.99      
6 B2 1107 1107 148.17      
7 B2 519 519 15.48      
8 E 1392 1392 97.47      
8 E 1392 1392 97.47      
9 E 590 590 20.11      
9 E 590 590 20.11      
10 E 532 532 0.01      
10 E 532 532 0.01      
11 E 94 94 0.23      
11 E 94 94 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 5924.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5924.7 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 B2PLYP/STO-3G
ABC
0.17618 0.03923 0.03923

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

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 1.323
C3 0.000 0.000 -1.323
F4 0.000 1.122 2.115
F5 0.000 -1.122 2.115
F6 1.122 0.000 -2.115
F7 -1.122 0.000 -2.115

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.32311.32312.39402.39402.39402.3940
C21.32312.64631.37321.37323.61633.6163
C31.32312.64633.61633.61631.37321.3732
F42.39401.37323.61632.24424.51734.5173
F52.39401.37323.61632.24424.51734.5173
F62.39403.61631.37324.51734.51732.2442
F72.39403.61631.37324.51734.51732.2442

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.200 C1 C2 F5 125.200
C1 C3 F6 125.200 C1 C3 F7 125.200
C2 C1 C3 180.000 F4 C2 F5 109.600
F6 C3 F7 109.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.143      
2 C 0.205      
3 C 0.205      
4 F -0.067      
5 F -0.067      
6 F -0.067      
7 F -0.067      


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 -31.399 0.000 0.000
y 0.000 -31.399 0.000
z 0.000 0.000 -31.295
Traceless
 xyz
x -0.052 0.000 0.000
y 0.000 -0.052 0.000
z 0.000 0.000 0.104
Polar
3z2-r20.208
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 1.546 0.000 0.000
y 0.000 1.546 0.000
z 0.000 0.000 7.164


<r2> (average value of r2) Å2
<r2> 246.914
(<r2>)1/2 15.714