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All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: B3PW91/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 B3PW91/STO-3G
 hartrees
Energy at 0K-13940.355789
Energy at 298.15K 
HF Energy-13940.355789
Nuclear repulsion energy943.659778
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 B3PW91/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 1185 1049 192.12 5.37 0.63 0.77
2 A1 576 510 20.32 2.95 0.01 0.01
3 A1 282 249 2.50 10.68 0.17 0.28
4 A1 114 101 0.15 5.74 0.53 0.69
5 A2 249 220 0.00 1.76 0.75 0.86
6 B1 713 631 343.94 7.59 0.75 0.86
7 B1 279 247 3.54 5.99 0.75 0.86
8 B2 1309 1159 121.22 0.15 0.75 0.86
9 B2 324 286 4.17 2.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2515.2 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 2225.9 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 B3PW91/STO-3G
ABC
0.08438 0.01803 0.01620

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.912
F2 0.000 1.115 1.724
F3 0.000 -1.115 1.724
I4 1.870 0.000 -0.344
I5 -1.870 0.000 -0.344

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.37871.37872.25332.2533
F21.37872.22983.00283.0028
F31.37872.22983.00283.0028
I42.25333.00283.00283.7406
I52.25333.00283.00283.7406

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 107.925 F2 C1 I4 109.155
F2 C1 I5 109.155 F3 C1 I4 109.155
F3 C1 I5 109.155 I4 C1 I5 112.203
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.092      
2 F -0.038      
3 F -0.038      
4 I -0.008      
5 I -0.008      


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 1.264 1.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.556 0.000 0.000
y 0.000 -66.668 0.000
z 0.000 0.000 -65.217
Traceless
 xyz
x -2.614 0.000 0.000
y 0.000 0.219 0.000
z 0.000 0.000 2.395
Polar
3z2-r24.790
x2-y2-1.888
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.662 0.000 0.000
y 0.000 1.533 0.000
z 0.000 0.000 3.483


<r2> (average value of r2) Å2
<r2> 505.927
(<r2>)1/2 22.493