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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-13934.859122
Energy at 298.15K 
HF Energy-13934.859122
Nuclear repulsion energy964.328849
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/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 1300 1062 157.40 25.21 0.48 0.64
2 A1 616 503 22.90 6.20 0.03 0.06
3 A1 320 262 0.56 13.19 0.18 0.31
4 A1 133 109 0.26 5.08 0.54 0.70
5 A2 280 228 0.00 1.74 0.75 0.86
6 B1 876 715 336.98 18.72 0.75 0.86
7 B1 320 261 0.66 4.79 0.75 0.86
8 B2 1426 1165 83.05 0.64 0.75 0.86
9 B2 350 286 6.50 2.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2810.1 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 2294.5 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 HF/STO-3G
ABC
0.08902 0.01874 0.01690

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.857
F2 0.000 1.098 1.678
F3 0.000 -1.098 1.678
I4 1.834 0.000 -0.333
I5 -1.834 0.000 -0.333

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.37031.37032.18692.1869
F21.37032.19532.93492.9349
F31.37032.19532.93492.9349
I42.18692.93492.93493.6687
I52.18692.93492.93493.6687

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 106.451 F2 C1 I4 109.023
F2 C1 I5 109.023 F3 C1 I4 109.023
F3 C1 I5 109.023 I4 C1 I5 114.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.142      
2 F -0.118      
3 F -0.118      
4 I 0.048      
5 I 0.048      


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 0.279 0.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.069 0.000 0.000
y 0.000 -67.530 0.000
z 0.000 0.000 -67.249
Traceless
 xyz
x -0.679 0.000 0.000
y 0.000 0.129 0.000
z 0.000 0.000 0.551
Polar
3z2-r21.101
x2-y2-0.539
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.955 0.000 0.000
y 0.000 1.349 0.000
z 0.000 0.000 2.986


<r2> (average value of r2) Å2
<r2> 487.434
(<r2>)1/2 22.078