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Experimental data for LiI (Lithium Iodide)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/HI.Li/h1H;/q;+1/p-1 HSZCZNFXUDYRKD-UHFFFAOYSA-M [Li]I
State Conformation
1Σ C*V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -91.00   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy 232.25   J K-1 mol-1 webbook
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 Σ 492 498 webbook      

Detailed diatomic data
ωe ωexe ωeye Be αe ZPE reference
498.1 3.3 0.08 0.5130686 -5.099861E-03 Webbook

vibrational zero-point energy: 245.8 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for LiI (Lithium Iodide).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.51307   NISTDiatomic Be

Calculated rotational constants for LiI (Lithium Iodide).
Product of moments of inertia moments of inertia
32.85648amu Å2   5.456033E-39gm cm2
Geometric Data
picture of Lithium Iodide

Point Group C∞v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rLiI 2.392 0.000 1 2 NISTDiatomic re

Cartesians
Atom x (Å) y (Å) z (Å)
Li1 0.0000 0.0000 0.0000
I2 0.0000 0.0000 2.3919

Atom - Atom Distances bond lengths
Distances in Å
  Li1 I2
Li1   2.3919
I2 2.3919  

Calculated geometries for LiI (Lithium Iodide).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
Li-I 1

Connectivity
Atom 1 Atom 2
Li1 I2
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1Σ

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
7.500       webbook

Electron Affinity (eV)
Electron Affinity unc. reference
0.750 0.040 webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1Σ C∞v True 0.000 0.000 7.429 7.429 NISTDiatomic   C∞v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for LiI (Lithium Iodide).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1Σ C∞v True       C∞v 1 1

Calculated electric quadrupole moments for LiI (Lithium Iodide).

References
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squib reference DOI
NISTdiatomic NIST Diatomic Spectral Database (www.physics.nist.gov/PhysRefData/MolSpec/Diatomic/index.html) 10.18434/T4T59X
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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