A linear homocatenated compound containing six indium centers

Michael S. Hill; Peter B. Hitchcock; Ruti Pongtavornpinyo

doi:10.1126/science.1123945

A linear homocatenated compound containing six indium centers

Michael S. Hill, Peter B. Hitchcock, Ruti Pongtavornpinyo

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110 Citations (SciVal)

Abstract

In contrast to carbon and its heavier congeners, group 13 elements are rarely observed to catenate into linear chains. Here, we find that treatment of indium(I) iodide with a protonated N-xylyl β-diketiminate and a strong potassium base in tetrahydrofuran yields a hexa-indium chain. X-ray crystallography revealed one β-diketiminate ligand bound to each indium center with no bridging ligands supporting the five indium-indium single bonds. The terminal indium centers were capped with iodine. Electronic spectroscopy and computations on a model compound offer preliminary support for σ delocalization along the chain.

Original language	English
Pages (from-to)	1904-1907
Number of pages	4
Journal	Science
Volume	311
Issue number	5769
DOIs	https://doi.org/10.1126/science.1123945
Publication status	Published - 31 Mar 2006

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N2 - In contrast to carbon and its heavier congeners, group 13 elements are rarely observed to catenate into linear chains. Here, we find that treatment of indium(I) iodide with a protonated N-xylyl β-diketiminate and a strong potassium base in tetrahydrofuran yields a hexa-indium chain. X-ray crystallography revealed one β-diketiminate ligand bound to each indium center with no bridging ligands supporting the five indium-indium single bonds. The terminal indium centers were capped with iodine. Electronic spectroscopy and computations on a model compound offer preliminary support for σ delocalization along the chain.

AB - In contrast to carbon and its heavier congeners, group 13 elements are rarely observed to catenate into linear chains. Here, we find that treatment of indium(I) iodide with a protonated N-xylyl β-diketiminate and a strong potassium base in tetrahydrofuran yields a hexa-indium chain. X-ray crystallography revealed one β-diketiminate ligand bound to each indium center with no bridging ligands supporting the five indium-indium single bonds. The terminal indium centers were capped with iodine. Electronic spectroscopy and computations on a model compound offer preliminary support for σ delocalization along the chain.

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VL - 311

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JO - Science

JF - Science

IS - 5769

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A linear homocatenated compound containing six indium centers

Abstract

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