February 6, 1996Organometallics135 citations
View Full PaperCombining Ferrocenes and Molecular Squares: Self-Assembly of Heterobimetallic Macrocyclic Squares Incorporating Mixed Transition Metal Systems and a Main Group Element. Single-Crystal X-ray Structure of Pt(dppf)(H2O)2OTf2
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Abstract
The preparation of the reactive diaqua complexes of (bis(diphenylphosphino)ferrocene)palladium(II) and -platinum(II) bis(triflates) and the X-ray crystal structure of Pt(dppf)(H2O)2OTf2 (dppf = 1,1‘-bis(diphenylphosphino)ferrocene) are reported. Interaction of these complexes with 2,7-diazapyrene produced novel octanuclear square-shaped metallomacrocycles. Modular self-assembly of Pd(dppf)(H2O)2OTf2 and Pt(dppf)(H2O)2OTf2 with bis4-(4‘-pyridyl)phenyliodonium triflate results in the facile formation of hexanuclear macrocyclic squares with alternating iodonium−late transition metals (Pd(II) or Pt(II)) at the corners and ferrocene complex as the chelating unit.