Mehrfachbindungen zwischen hauptgruppenelementen und übergangsmetallen. XXXII. Insertions- und metathesereaktionen von metallorganischen eisen-selen-komplexen

Wolfgang A. Herrmann, Jürgen Rohrmann, Eberhardt Herdtweck, Christian Hecht, Manfred L. Ziegler, Orhan Serhadli

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The compound (μ-Se)[η5-C5H5)Fe(CO)2]2 (1) has labile metalselenium bonds and therefore undergoes insertion and metathesis reactions. Thus, reaction with elemental selenium gives the novel FeSeSeFe chain-type complex (μ,η11-Se2)[(η5-C5H5)Fe(CO)2]2 (2). Both compounds 1 and 2 react with the homodinuclear chromium complex [(η5-C5H5)Cr(CO)3]2 with formation of the heterodinuclear derivatives of composition (η5-C5H5)2CrFe(CO)5. (3; single-crystal X-ray structure: d(CrFe) 290.1(1) pm) and (μ-Se2)[(η5-C5H5)2CrFe(CO)4] (4). The latter compound exhibits a diselenido bridge ligand in η12-coordination (single-crystal X-ray structure: d(CrSe) 249.5(2) and 255.5(2) pm, d(FeSe) 238.9(2), d(SeSe) 229.7(1) pm) and can also be obtained by treatment of the chromium complex 3 with elemental selenium.

Original languageGerman
Pages (from-to)295-305
Number of pages11
JournalJournal of Organometallic Chemistry
Issue number3
StatePublished - 28 Oct 1986

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