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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: PBE1PBE/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 PBE1PBE/STO-3G
 hartrees
Energy at 0K-13939.351633
Energy at 298.15K 
HF Energy-13939.351633
Nuclear repulsion energy948.877352
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 PBE1PBE/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 1201 1059 194.55 6.10 0.59 0.74
2 A1 582 514 21.09 3.05 0.00 0.01
3 A1 288 254 2.36 10.48 0.17 0.29
4 A1 116 103 0.18 5.46 0.54 0.70
5 A2 251 222 0.00 1.76 0.75 0.86
6 B1 731 644 345.41 8.32 0.75 0.86
7 B1 285 252 2.53 5.78 0.75 0.86
8 B2 1328 1171 122.18 0.10 0.75 0.86
9 B2 327 288 4.58 2.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2554.2 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 2253.1 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 PBE1PBE/STO-3G
ABC
0.08509 0.01825 0.01640

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.907
F2 0.000 1.111 1.716
F3 0.000 -1.111 1.716
I4 1.859 0.000 -0.343
I5 -1.859 0.000 -0.343

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.37471.37472.23982.2398
F21.37472.22292.98812.9881
F31.37472.22292.98812.9881
I42.23982.98812.98813.7175
I52.23982.98812.98813.7175

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 107.899 F2 C1 I4 109.169
F2 C1 I5 109.169 F3 C1 I4 109.169
F3 C1 I5 109.169 I4 C1 I5 112.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.094      
2 F -0.042      
3 F -0.042      
4 I -0.005      
5 I -0.005      


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 1.226 1.226
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.617 0.000 0.000
y 0.000 -66.716 0.000
z 0.000 0.000 -65.346
Traceless
 xyz
x -2.586 0.000 0.000
y 0.000 0.265 0.000
z 0.000 0.000 2.320
Polar
3z2-r24.641
x2-y2-1.901
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.422 0.000 0.000
y 0.000 1.510 0.000
z 0.000 0.000 3.417


<r2> (average value of r2) Å2
<r2> 500.624
(<r2>)1/2 22.375