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All results from a given calculation for I2 (Iodine diatomic)

using model chemistry: BLYP/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at BLYP/cc-pVTZ-PP
 hartrees
Energy at 0K-591.335505
Energy at 298.15K 
HF Energy-591.335505
Nuclear repulsion energy120.749480
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 BLYP/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 198 198 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 98.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 98.9 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 BLYP/cc-pVTZ-PP
B
0.03541

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 1.370
I2 0.000 0.000 -1.370

Atom - Atom Distances (Å)
  I1 I2
I12.7390
I22.7390

picture of Iodine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 I 0.000      
2 I 0.000      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -55.188 0.000 0.000
y 0.000 -55.188 0.000
z 0.000 0.000 -47.885
Traceless
 xyz
x -3.651 0.000 0.000
y 0.000 -3.651 0.000
z 0.000 0.000 7.303
Polar
3z2-r214.606
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.743 0.000 0.000
y 0.000 6.743 0.000
z 0.000 0.000 13.570


<r2> (average value of r2) Å2
<r2> 126.727
(<r2>)1/2 11.257