Thallium(I) as a Coordination Site Protection Agent: Preparation of an Isolable Zero-Valent Nickel Tris-Isocyanide

Authors

  • Brian J. Fox,

    1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193 (USA), Fax: (+1) 858-822-4442
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  • Matthew D. Millard,

    1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193 (USA), Fax: (+1) 858-822-4442
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  • Antonio G. DiPasquale Dr.,

    1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193 (USA), Fax: (+1) 858-822-4442
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  • Arnold L. Rheingold Prof. Dr.,

    1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193 (USA), Fax: (+1) 858-822-4442
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  • Joshua S. Figueroa Prof. Dr.

    1. Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive MC 0358, La Jolla, CA 92193 (USA), Fax: (+1) 858-822-4442
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  • We gratefully acknowledge the UCSD Department of Chemistry and Biochemistry and the Camille and Henry Dreyfus New Faculty Awards Program for support. We thank Dr. Eric Paulson and Dr. Christopher D. Incarvito for acquiring 205Tl NMR spectroscopic data and Prof. Adam R. Johnson for helpful comments.

Abstract

Blocking the pass: Low-valent Ni centers readily bind TlI ions in a synthetically reversible fashion. The Tl units, in turn, serve as coordination site protection agents for Ni with respect to incoming Lewis basic ligands. This synthetic sequence allows for the isolation of a reactive zero-valent Ni tris-isocyanide complex.

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