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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: PBE1PBE/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/cc-pVTZ-PP
 hartrees
Energy at 0K-1549.630526
Energy at 298.15K 
HF Energy-1549.630526
Nuclear repulsion energy561.122070
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 PBE1PBE/cc-pVTZ-PP
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 724 724 114.41 15.07 0.31 0.48
2 A1 361 361 0.01 14.02 0.01 0.02
3 A1 208 208 0.02 9.51 0.18 0.30
4 A1 109 109 0.06 3.36 0.58 0.73
5 A2 154 154 0.00 2.40 0.75 0.86
6 B1 637 637 99.40 16.71 0.75 0.86
7 B1 193 193 0.00 4.58 0.75 0.86
8 B2 763 763 102.38 1.23 0.75 0.86
9 B2 228 228 0.35 3.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1688.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1688.4 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 PBE1PBE/cc-pVTZ-PP
ABC
0.03897 0.01794 0.01557

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVTZ-PP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.670
Cl2 0.000 1.439 1.686
Cl3 0.000 -1.439 1.686
I4 1.770 0.000 -0.579
I5 -1.770 0.000 -0.579

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.76111.76112.16582.1658
Cl21.76112.87773.21373.2137
Cl31.76112.87773.21373.2137
I42.16583.21373.21373.5390
I52.16583.21373.21373.5390

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.580 Cl2 C1 I4 109.417
Cl2 C1 I5 109.417 Cl3 C1 I4 109.417
Cl3 C1 I5 109.417 I4 C1 I5 109.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.245      
2 Cl -0.002      
3 Cl -0.002      
4 I 0.124      
5 I 0.124      


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 -0.415 0.415
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -80.560 0.000 0.000
y 0.000 -84.210 0.000
z 0.000 0.000 -82.993
Traceless
 xyz
x 3.041 0.000 0.000
y 0.000 -2.434 0.000
z 0.000 0.000 -0.608
Polar
3z2-r2-1.215
x2-y23.650
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 16.725 0.000 0.000
y 0.000 12.394 0.000
z 0.000 0.000 13.942


<r2> (average value of r2) Å2
<r2> 394.567
(<r2>)1/2 19.864