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Related Experiment Videos

Synthesis of Indium Amide Compounds.

Jungsook Kim1, Simon G. Bott, David M. Hoffman

  • 1Department of Chemistry, University of Houston, Houston, Texas 77204.

Inorganic Chemistry
|October 24, 2001
PubMed
Summary

Indium trichloride reacts with lithium amides to form novel indium amide compounds. X-ray crystallography reveals planar In(amide)3 fragments and tetrahedral anions in these new indium complexes.

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Area of Science:

  • Organometallic Chemistry
  • Inorganic Synthesis
  • Crystallography

Background:

  • Indium chemistry offers unique electronic and structural properties.
  • Amide ligands are versatile in coordinating metal centers.
  • Understanding the reactivity of indium trichloride with amide bases is crucial for developing new indium compounds.

Purpose of the Study:

  • To synthesize and characterize novel indium amide complexes.
  • To investigate the reactivity of indium trichloride with various lithium amide bases.
  • To elucidate the structural features of the resulting indium compounds using X-ray crystallography.

Main Methods:

  • Reaction of indium trichloride with different lithium amide reagents in various solvents (diethyl ether, THF, pyridine).
  • Isolation and purification of synthesized indium compounds.
  • Single-crystal X-ray diffraction analysis to determine molecular and crystal structures.

Main Results:

  • Synthesis of neutral indium(III) tris(amide) complexes, such as In(NRR')(3), and anionic complexes like Li[In{NMe(SiMe(3))}(4)].
  • Formation of adducts with pyridine and p-Me2Npy, leading to neutral In(amide)3(L) compounds.
  • X-ray crystallography confirmed nearly planar In(amide)3 fragments in several neutral complexes and tetrahedral or distorted tetrahedral geometries for anionic indium complexes.

Conclusions:

  • Indium trichloride exhibits diverse reactivity with lithium amides, yielding both neutral and anionic indium complexes.
  • The structural studies highlight the coordination preferences of indium and the influence of amide substituents and solvent molecules.
  • These findings expand the scope of indium amide chemistry and provide insights into their structural diversity.

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