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

using model chemistry: MP3/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 MP3/cc-pVTZ-PP
 hartrees
Energy at 0K-589.763417
Energy at 298.15K 
HF Energy-589.344935
Nuclear repulsion energy123.474434
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 MP3/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 Σg 225 225 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 112.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 112.3 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 MP3/cc-pVTZ-PP
B
0.03703

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVTZ-PP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 1.339
I2 0.000 0.000 -1.339

Atom - Atom Distances (Å)
  I1 I2
I12.6786
I22.6786

picture of Iodine diatomic state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability