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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/Def2TZVPP
 hartrees
Energy at 0K-1553.496615
Energy at 298.15K 
HF Energy-1553.496615
Nuclear repulsion energy556.071268
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 PBEPBEultrafine/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 662 662 133.93 13.54 0.32 0.49
2 A1 343 343 0.07 13.79 0.01 0.02
3 A1 195 195 0.30 10.59 0.18 0.31
4 A1 103 103 0.08 4.08 0.58 0.73
5 A2 146 146 0.00 2.75 0.75 0.86
6 B1 568 568 127.73 14.32 0.75 0.86
7 B1 181 181 0.38 5.75 0.75 0.86
8 B2 701 701 117.70 0.96 0.75 0.86
9 B2 218 218 0.45 3.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1558.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1558.1 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 PBEPBEultrafine/Def2TZVPP
ABC
0.03825 0.01762 0.01528

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.685
Cl2 0.000 1.450 1.702
Cl3 0.000 -1.450 1.702
I4 1.786 0.000 -0.585
I5 -1.786 0.000 -0.585

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.77121.77122.19122.1912
Cl21.77122.90003.24373.2437
Cl31.77122.90003.24373.2437
I42.19123.24373.24373.5717
I52.19123.24373.24373.5717

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.905 Cl2 C1 I4 109.437
Cl2 C1 I5 109.437 Cl3 C1 I4 109.437
Cl3 C1 I5 109.437 I4 C1 I5 109.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 Cl -0.016      
3 Cl -0.016      
4 I 0.025      
5 I 0.025      


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 -0.273 0.273
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -80.714 0.000 0.000
y 0.000 -83.756 0.000
z 0.000 0.000 -82.511
Traceless
 xyz
x 2.420 0.000 0.000
y 0.000 -2.143 0.000
z 0.000 0.000 -0.277
Polar
3z2-r2-0.553
x2-y23.042
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 18.085 0.000 0.000
y 0.000 12.896 0.000
z 0.000 0.000 14.813


<r2> (average value of r2) Å2
<r2> 400.786
(<r2>)1/2 20.020