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Agostic and Hydrogen-Bonding X–H…M Interactions Involving a d8 Metal Center: Recent Advances Towards Their Understanding

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Noncovalent Forces

Part of the book series: Challenges and Advances in Computational Chemistry and Physics ((COCH,volume 19))

Abstract

The binding of d8 transition metal ions to X–H bonds (X = non-metal) has been subject of intense research in the last two decades. Two different types of orbital interactions can stabilize X–H…M bonds: (1) charge transfer from a filled orbital of the metal into the empty σ*-antibonding orbital of the X–H bond; (2) charge transfer from the filled σ-bonding orbital of the X–H bond into an empty orbital of the metal. The first type corresponds to a hydrogen bond, whereas the second is commonly designated as an agostic bond. The present article analyses experimental and theoretical approaches to the characterization of these two interaction types in d8 transition metal complexes, points out some assignment errors that occurred in the past, and summarizes recent advances towards the understanding of the structure, dynamics, and physical origin of these weak interactions.

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Notes

  1. 1.

    In contrast to “pregostic” or “remote agostic” interactions, pseudoagostic interactions share all characteristics with agostic interactions; their only particularity is being intermolecular.

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Acknowledgment

I would like to thank all students and colleagues whom I was lucky to work with. Their names figure in the correponding references. I acknowledge support with platinum chemicals from W. C. Heraeus GmbH and financial support from the Hubert-Curien program “Galileo” and from COST (Action D39/0004/06).

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  1. Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR 8601 CNRS, Université Paris Descartes, 45, rue des Saints-Pères, 75270, Paris, France

    Jiří Kozelka

  2. Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic

    Jiří Kozelka

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  1. Department of Chemistry & Biochemistry, Utah State University, Logan, Utah, USA

    Steve Scheiner

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Kozelka, J. (2015). Agostic and Hydrogen-Bonding X–H…M Interactions Involving a d8 Metal Center: Recent Advances Towards Their Understanding. In: Scheiner, S. (eds) Noncovalent Forces. Challenges and Advances in Computational Chemistry and Physics, vol 19. Springer, Cham. https://doi.org/10.1007/978-3-319-14163-3_6

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