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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: BLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/3-21G*
 hartrees
Energy at 0K-14017.703328
Energy at 298.15K 
HF Energy-14017.703328
Nuclear repulsion energy947.712583
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 BLYP/3-21G*
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 1013 1007 210.06 7.30 0.55 0.71
2 A1 534 531 7.90 3.44 0.01 0.02
3 A1 244 243 0.39 15.87 0.14 0.24
4 A1 100 99 0.10 5.34 0.41 0.58
5 A2 216 214 0.00 0.96 0.75 0.86
6 B1 643 639 390.62 5.34 0.75 0.86
7 B1 246 244 0.62 4.81 0.75 0.86
8 B2 1104 1097 88.21 1.35 0.75 0.86
9 B2 268 266 0.02 1.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2184.3 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 2170.1 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 BLYP/3-21G*
ABC
0.08620 0.01807 0.01634

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.892
F2 0.000 1.129 1.694
F3 0.000 -1.129 1.694
I4 1.867 0.000 -0.338
I5 -1.867 0.000 -0.338

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.38411.38412.23572.2357
F21.38412.25732.98092.9809
F31.38412.25732.98092.9809
I42.23572.98092.98093.7332
I52.23572.98092.98093.7332

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 109.259 F2 C1 I4 108.578
F2 C1 I5 108.578 F3 C1 I4 108.578
F3 C1 I5 108.578 I4 C1 I5 113.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.255      
2 F -0.203      
3 F -0.203      
4 I 0.076      
5 I 0.076      


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 -0.536 0.536
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.163 0.000 0.000
y 0.000 -73.433 0.000
z 0.000 0.000 -71.399
Traceless
 xyz
x 5.253 0.000 0.000
y 0.000 -4.151 0.000
z 0.000 0.000 -1.101
Polar
3z2-r2-2.203
x2-y26.270
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 15.291 0.000 0.000
y 0.000 7.039 0.000
z 0.000 0.000 8.325


<r2> (average value of r2) Å2
<r2> 504.904
(<r2>)1/2 22.470