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All results from a given calculation for F2CCCF2 (tetrafluoroallene)

using model chemistry: mPW1PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at mPW1PW91/TZVP
 hartrees
Energy at 0K-513.670145
Energy at 298.15K-513.670628
HF Energy-513.670145
Nuclear repulsion energy285.144270
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 mPW1PW91/TZVP
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 1611 1537 0.00      
2 A1 753 718 0.00      
3 A1 401 382 0.00      
4 B1 158 151 0.00      
5 B2 2164 2064 1060.27      
6 B2 1070 1021 594.66      
7 B2 595 568 20.71      
8 E 1277 1218 328.06      
8 E 1277 1218 328.06      
9 E 665 634 28.92      
9 E 665 634 28.92      
10 E 566 540 1.02      
10 E 566 540 1.02      
11 E 97 92 0.04      
11 E 97 92 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 5980.3 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 5705.2 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 mPW1PW91/TZVP
ABC
0.19291 0.04186 0.04186

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

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 1.291
C3 0.000 0.000 -1.291
F4 0.000 1.072 2.049
F5 0.000 -1.072 2.049
F6 1.072 0.000 -2.049
F7 -1.072 0.000 -2.049

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7
C11.29081.29082.31272.31272.31272.3127
C21.29082.58151.31341.31343.50783.5078
C31.29082.58153.50783.50781.31341.3134
F42.31271.31343.50782.14474.36984.3698
F52.31271.31343.50782.14474.36984.3698
F62.31273.50781.31344.36984.36982.1447
F72.31273.50781.31344.36984.36982.1447

picture of tetrafluoroallene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 125.267 C1 C2 F5 125.267
C1 C3 F6 125.267 C1 C3 F7 125.267
C2 C1 C3 180.000 F4 C2 F5 109.467
F6 C3 F7 109.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C 0.361      
3 C 0.361      
4 F -0.125      
5 F -0.125      
6 F -0.125      
7 F -0.125      


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 -36.293 0.000 0.000
y 0.000 -36.293 0.000
z 0.000 0.000 -38.230
Traceless
 xyz
x 0.968 0.000 0.000
y 0.000 0.968 0.000
z 0.000 0.000 -1.936
Polar
3z2-r2-3.873
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 3.604 0.000 0.000
y 0.000 3.604 0.000
z 0.000 0.000 8.906


<r2> (average value of r2) Å2
<r2> 235.616
(<r2>)1/2 15.350