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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-75.517215
Energy at 298.15K 
HF Energy-75.517215
Nuclear repulsion energy89.446133
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 HF/CEP-121G
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 1107 1010 329.83 47.78 0.53 0.69
2 A1 584 533 8.82 6.52 0.01 0.01
3 A1 285 260 0.74 24.72 0.23 0.38
4 A1 123 112 0.13 9.46 0.58 0.74
5 A2 264 241 0.00 3.02 0.75 0.86
6 B1 810 740 308.55 23.34 0.75 0.86
7 B1 292 266 6.52 6.95 0.75 0.86
8 B2 1146 1046 210.30 2.81 0.75 0.86
9 B2 320 292 0.45 4.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2465.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 2249.3 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 HF/CEP-121G
ABC
0.09126 0.01865 0.01692

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.814
F2 0.000 1.102 1.653
F3 0.000 -1.102 1.653
I4 1.838 0.000 -0.327
I5 -1.838 0.000 -0.327

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.38511.38512.16382.1638
F21.38512.20492.91802.9180
F31.38512.20492.91802.9180
I42.16382.91802.91803.6768
I52.16382.91802.91803.6768

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 105.484 F2 C1 I4 108.621
F2 C1 I5 108.621 F3 C1 I4 108.621
F3 C1 I5 108.621 I4 C1 I5 116.338
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 F -0.217      
3 F -0.217      
4 I 0.341      
5 I 0.341      


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 -2.547 2.547
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.954 0.000 0.000
y 0.000 -59.951 0.000
z 0.000 0.000 -59.596
Traceless
 xyz
x 9.819 0.000 0.000
y 0.000 -5.176 0.000
z 0.000 0.000 -4.644
Polar
3z2-r2-9.288
x2-y29.997
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.356 0.000 0.000
y 0.000 2.928 0.000
z 0.000 0.000 5.316


<r2> (average value of r2) Å2
<r2> 142.023
(<r2>)1/2 11.917