Triphosphamacrocycle complexes of rhodium(III), iron(II) and ruthenium(II); crystal structure of trichloro[1,5,9-tris(2-propyl)-1,5,9-triphosphacyclododecane]rhodium( III)

Abstract

The free macrocyclic 1,5,9-tris(2-propyl)-1,5,9-triphosphacyclododecane (Pr ⁱ ₃ [12]aneP ₃ , L) has been used for the first time to prepare a range of metal complexes. Reaction of L with RhCl ₃ ·3H ₂ O yields the six-co-ordinate fac-octahedral complex [RhCl ₃ (L)], which has been structurally characterised and is also used to prepare the analogous rhodium(III)–trihydrido and –triiodo complexes. The half-sandwich complex, [Fe(η ⁵ -C ₅ H ₅ )(L)]PF ₆ was prepared from [Fe(η ⁵ -C ₅ H ₅ )(η ⁶ -C ₆ H ₅ )]PF ₆ and L. The ruthenium complexes [RuCl ₂ (dmso)(L)] (dmso = dimethyl sulfoxide) and [Ru ₂ (µ-Cl) ₃ (L) ₂ ]Cl were also formed from the reaction of L with [RuCl ₂ (dmso) ₄ ] and [RuCl ₂ (η ⁶ -C ₆ H ₄ Me-4-Pr ⁱ -1)] ₂ respectively.