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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-1550.172768
Energy at 298.15K 
HF Energy-1550.172768
Nuclear repulsion energy562.371461
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/Def2TZVPP
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 802 727 86.75 42.68 0.45 0.62
2 A1 381 345 0.09 16.54 0.00 0.01
3 A1 224 203 0.13 10.58 0.19 0.31
4 A1 121 110 0.06 3.07 0.57 0.72
5 A2 171 155 0.00 2.03 0.75 0.86
6 B1 723 655 64.08 43.65 0.75 0.86
7 B1 209 189 0.38 4.72 0.75 0.86
8 B2 838 760 82.52 8.31 0.75 0.86
9 B2 248 225 0.39 2.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1858.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 1684.1 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 HF/Def2TZVPP
ABC
0.03928 0.01797 0.01563

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.654
Cl2 0.000 1.436 1.678
Cl3 0.000 -1.436 1.678
I4 1.768 0.000 -0.575
I5 -1.768 0.000 -0.575

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.76461.76462.15342.1534
Cl21.76462.87303.20463.2046
Cl31.76462.87303.20463.2046
I42.15343.20463.20463.5365
I52.15343.20463.20463.5365

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 108.990 Cl2 C1 I4 109.357
Cl2 C1 I5 109.357 Cl3 C1 I4 109.357
Cl3 C1 I5 109.357 I4 C1 I5 110.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.013      
2 Cl -0.049      
3 Cl -0.049      
4 I 0.042      
5 I 0.042      


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 -0.642 0.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -80.963 0.000 0.000
y 0.000 -85.275 0.000
z 0.000 0.000 -84.082
Traceless
 xyz
x 3.716 0.000 0.000
y 0.000 -2.752 0.000
z 0.000 0.000 -0.964
Polar
3z2-r2-1.927
x2-y24.312
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 16.430 0.000 0.000
y 0.000 11.875 0.000
z 0.000 0.000 13.487


<r2> (average value of r2) Å2
<r2> 393.504
(<r2>)1/2 19.837