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All results from a given calculation for CCl2I2 (dichlorodiiodomethane)

using model chemistry: PBEPBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-14733.688565
Energy at 298.15K 
HF Energy-14733.688565
Nuclear repulsion energy1255.741446
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 PBEPBE/3-21G*
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 634 604 145.49 5.38 0.54 0.70
2 A1 337 321 0.21 15.86 0.03 0.05
3 A1 199 190 0.01 10.34 0.22 0.36
4 A1 102 98 0.07 4.46 0.60 0.75
5 A2 146 140 0.00 3.45 0.75 0.86
6 B1 601 573 128.92 8.00 0.75 0.86
7 B1 184 176 0.00 6.32 0.75 0.86
8 B2 628 599 130.57 1.81 0.75 0.86
9 B2 216 206 0.46 5.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1524.2 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1453.3 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 PBEPBE/3-21G*
ABC
0.03722 0.01720 0.01493

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.678
Cl2 0.000 1.474 1.724
Cl3 0.000 -1.474 1.724
I4 1.807 0.000 -0.591
I5 -1.807 0.000 -0.591

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 I4 I5
C11.80751.80752.20822.2082
Cl21.80752.94853.28633.2863
Cl31.80752.94853.28633.2863
I42.20823.28633.28633.6131
I52.20823.28633.28633.6131

picture of dichlorodiiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 Cl3 109.297 Cl2 C1 I4 109.435
Cl2 C1 I5 109.435 Cl3 C1 I4 109.435
Cl3 C1 I5 109.435 I4 C1 I5 109.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 Cl 0.106      
3 Cl 0.106      
4 I 0.181      
5 I 0.181      


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 -0.775 0.775
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -82.497 0.000 0.000
y 0.000 -87.742 0.000
z 0.000 0.000 -86.242
Traceless
 xyz
x 4.495 0.000 0.000
y 0.000 -3.373 0.000
z 0.000 0.000 -1.122
Polar
3z2-r2-2.244
x2-y25.245
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 15.473 0.000 0.000
y 0.000 11.046 0.000
z 0.000 0.000 12.599


<r2> (average value of r2) Å2
<r2> 614.172
(<r2>)1/2 24.782