Octahedral Iridium Clusters: Synthesis, Electrochemical Mechanisms of Formation, and Solid-State Structures of [Ir6(CO)14(μ-TePh)]- and [Ir6(CO)13(μ-TePh)2]

Autor:	Arnaldo Cinquantini, M. Sansoni, Luigi Garlaschelli, M. Manassero, R. Piacentini, Fabrizia Fabrizi de Biani, R. Della Pergola, Alessandro Ceriotti, P. Zanello
Rok vydání:	1998
Předmět:	Organic Chemistry Solid-state Diphenyl ditelluride chemistry.chemical_element Electrochemistry Photochemistry Toluene Inorganic Chemistry chemistry.chemical_compound Crystallography Octahedron chemistry Reactivity (chemistry) Iridium Physical and Theoretical Chemistry Tetrahydrofuran
Zdroj:	Organometallics. 17:802-806
ISSN:	1520-6041 0276-7333
Popis:	The diphenyl ditelluride PhTeTePh reacts with [Ir6(CO)15]2- (in refluxing tetrahydrofuran) or Ir6(CO)16 (in toluene) yielding [Ir6(CO)14(μ-TePh)]- or [Ir6(CO)13(μ-TePh)2], respectively. Analogous mono- and disubstituted iridium compounds were prepared with other diaryl disulfides or diselenides. Electrochemical experiments confirm the different reactivity of PhTeTePh and PhSSPh showing that the ditelluride adds to the electrogenerated transient radical [Ir6(CO)15]-• and the disulfide to [Ir6(CO)15]0. The two clusters consists of octahedra of iridium atoms with one or two edges bridged by phenyltellurolate ligands. The Ir−Ir bonds trans to the TePh unit are remarkably short.
Databáze:	OpenAIRE
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