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Indium Fluoroalkoxide Compounds.

Liliana A. Mîinea1, Seigi Suh, David M. Hoffman

  • 1Department of Chemistry and Materials Research Science and Engineering Center, University of Houston, Houston, Texas 77204.

Inorganic Chemistry
|October 24, 2001
PubMed
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Indium amide complexes react with fluorinated alcohols to form novel indium fluoroalkoxide complexes. These reactions yield diverse products, including dimers and salts, with varying ligand arrangements and coordination numbers.

Area of Science:

  • Organometallic Chemistry
  • Fluorine Chemistry
  • Coordination Chemistry

Background:

  • Indium amide complexes serve as precursors for generating indium alkoxide derivatives.
  • The reactivity of indium amides with alcohols is influenced by the acidity of the alcohol and the steric bulk of the amide ligand.

Purpose of the Study:

  • To investigate the reactions of indium amide complexes with various fluorinated alcohols.
  • To synthesize and characterize novel indium fluoroalkoxide complexes.
  • To elucidate the structural diversity and coordination behavior of these new compounds.

Main Methods:

  • Synthesis of indium amide complexes, including In[N-t-Bu(SiMe(3))](3), In(tmp)(3), and In(NEt(2))(3).
  • Reaction of indium amide complexes with fluorinated alcohols such as (CF(3))Me(2)COH and (CF(3))(2)CHOH.

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  • Isolation and characterization of products using techniques including X-ray crystallography.
  • Main Results:

    • Formation of indium fluoroalkoxide complexes, including homoleptic alkoxide dimers and salts.
    • Observation of ligand exchange and decomposition pathways, leading to the formation of t-BuNH(2) from amide ligands with more acidic alcohols.
    • Structural characterization of diverse indium fluoroalkoxide complexes, revealing varying coordination geometries (e.g., trigonal bipyramidal, octahedral) and nuclearities.

    Conclusions:

    • The reaction pathway of indium amide complexes with fluorinated alcohols is highly dependent on the alcohol's acidity and the amide ligand's nature.
    • A range of indium fluoroalkoxide complexes with distinct structural features can be accessed through these reactions.
    • This study expands the library of known indium alkoxide compounds and provides insights into their coordination chemistry.