Coordination behavior of the 1,2,3-Triphosphaferrocene [Cp Fe(η5-P3C2(H)Ph)] with organometallic moieties

Shining Deng, Christoph Schwarzmaier, Manfred Zabel, John F. Nixon, Alexey Y. Timoshkin, Manfred Scheer

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7 Citations (Scopus)

Abstract

The reaction of the 1,2,3-triphosphaferrocene [Cp Fe(η5- P3C2(H)Ph)] (1) with the Lewis acidic complex [PtCl 2(PEt3)]2 yields the monosubstituted derivative [Cp Fe(η5-P3C2(H)Ph){PtCl 2(PEt3)}] (2), in which the Pt moiety is located at the P atom adjacent to the C(H) group of the cyclo-P3C2 ring. Using an excess of the Pt complex no multiple substitution occurs. In contrast, using [W(CO)5] units as Lewis acids results in mono-, di-, and tricoordination at the cyclo-P3C2 ring. The products, [Cp Fe(η3-P3C2(H)Ph){W(CO)5} n] (n = 1 (3), 2 (4), 3 (5)), have all been spectroscopically characterized, and the substitution patterns of the experimentally found (mono- and disubstituted) isomers are found to be in accordance with the energetically favored derivatives calculated by DFT methods. For these structures the energetically favored rotational conformers have also been calculated. The energetically favored 2,3-coordinated isomer 4b could be crystallized, and its structure and that of the tricoordinated derivative 5 were determined by X-ray diffraction methods.

Original languageEnglish
Pages (from-to)1075-1081
Number of pages7
JournalOrganometallics
Volume28
Issue number4
DOIs
Publication statusPublished - 23 Feb 2009

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Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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