Synthesis of η6-arene complexes of molybdenum containing β-ketophosphine and related P,O mixed donor ligands

Neale G. Jones, Malcolm L.H. Green, Ino C. Vei, Leigh H. Rees, Sofia I. Pascu, David Watkin, Andrew Cowley, Xavier Morise, Pierre Braunstein

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10 Citations (Scopus)

Abstract

The reactions of the ligands Ph2PCH2C(O)R (R = Ph, NPh2) with the η6-arene molybdenum complexes [Mo(η3-C3H5)(μ-Cl)(η 6-C6H5R)]2 (R = H, Me) have been investigated. A series of complexes in which the keto- or amidophosphine acts as a monodentate P ligand or as a neutral or anionic P,O chelating ligand have been synthesised and characterised. The crystal structures of the compounds [Mo(η3-C3H5)Cl(η6-C 6H5Me){Ph2PCH2C(O)Ph}], [Mo(η3-C3H5){Ph2PCH 2C(O)NPh22P,O}(η6-C 6H5Me)][PF6] and [Mo{Ph2PCH···C(···O)Ph- κ2P,O}26-C6H 5R)] (R = H, Me) have been determined. Interesting di3erences in the reactivity of the ketophosphine ligandversus the amidophosphine ligand were discovered and an unprecedented hydrogen-deuterium exchange of methylene and olefinic protons has been observed for the coordinated neutral or anionic ketophosphine ligands.

Original languageEnglish
Pages (from-to)2491-2500
Number of pages10
JournalJournal of the Chemical Society, Dalton Transactions
Issue number12
Publication statusPublished - 25 Jun 2002

ASJC Scopus subject areas

  • Chemistry(all)

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