Characterization of an agostic bond on the basis of the electron density

P. L A Popelier, G. Logothetis

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Several conformations of CH3TiCl2+, C2H5TiCl2+and C3H7TiCl2+were selected for a case study on agostic bonds. Ab initio wavefunctions have been generated at Hartree-Fock, BLYP and MP2 level. Criteria solely based on a topological analysis of the electron density are proposed in order to characterize the agostic bond. These criteria are drawn from the theory of 'atoms in molecules' (AIM) and form an independent complement to conventional methods like IR, NMR and structural crystallography. The observed features systematically violate the criteria that have been proposed for hydrogen bonding. As a consequence the agostic bond is not a special type of hydrogen bond.
    Original languageEnglish
    Pages (from-to)101-111
    Number of pages10
    JournalJournal of Organometallic Chemistry
    Volume555
    Issue number1
    DOIs
    Publication statusPublished - 25 Mar 1998

    Keywords

    • Ab initio
    • Agostic
    • Charge density
    • Ti-alkyl
    • Topological analysis

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