return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CF2I2 (difluorodiiodomethane)

using model chemistry: wB97X-D/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 wB97X-D/STO-3G
 hartrees
Energy at 0K-13940.508754
Energy at 298.15K 
HF Energy-13940.508754
Nuclear repulsion energy948.858097
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 wB97X-D/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 1188 1188 191.57 7.83 0.54 0.70
2 A1 581 581 20.22 3.16 0.00 0.00
3 A1 290 290 2.28 10.38 0.17 0.29
4 A1 120 120 0.14 5.09 0.54 0.70
5 A2 256 256 0.00 1.77 0.75 0.86
6 B1 742 742 333.36 9.44 0.75 0.86
7 B1 287 287 2.24 5.80 0.75 0.86
8 B2 1305 1305 118.76 0.08 0.75 0.86
9 B2 332 332 4.55 2.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2549.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2549.7 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 wB97X-D/STO-3G
ABC
0.08490 0.01826 0.01641

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.903
F2 0.000 1.114 1.718
F3 0.000 -1.114 1.718
I4 1.858 0.000 -0.343
I5 -1.858 0.000 -0.343

Atom - Atom Distances (Å)
  C1 F2 F3 I4 I5
C11.38061.38062.23662.2366
F21.38062.22782.99012.9901
F31.38062.22782.99012.9901
I42.23662.99012.99013.7155
I52.23662.99012.99013.7155

picture of difluorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 F3 107.573 F2 C1 I4 109.209
F2 C1 I5 109.209 F3 C1 I4 109.209
F3 C1 I5 109.209 I4 C1 I5 112.318
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.092      
2 F -0.050      
3 F -0.050      
4 I 0.004      
5 I 0.004      


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 1.107 1.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -68.660 0.000 0.000
y 0.000 -66.798 0.000
z 0.000 0.000 -65.616
Traceless
 xyz
x -2.453 0.000 0.000
y 0.000 0.339 0.000
z 0.000 0.000 2.113
Polar
3z2-r24.227
x2-y2-1.861
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.223 0.000 0.000
y 0.000 1.513 0.000
z 0.000 0.000 3.394


<r2> (average value of r2) Å2
<r2> 500.518
(<r2>)1/2 22.372