Selective synthesis of isomeric heterodinuclear complexes with switched metal arrangements via proton-induced reversible metal migration
作者:Christian Dubs、Akiko Inagaki、Munetaka Akita
DOI:10.1039/b409514f
日期:——
Pairs of isomeric heterodinuclear complexes, [(cod)Ir(μ-PNNN)M(L)]BF4 and [(L)M(μ-PNNN)Ir(cod)]BF4, with switched metal arrangements are prepared in a specific manner by simply changing the addition order of the reagents.
Synthesis of a Library of Iridium-Containing Dinuclear Complexes with Bridging PNNN and PNNP Ligands (BL), [LM(μ-BL)M‘L‘]BF<sub>4</sub>. 1. Specific Synthesis of Isomeric Heterodinuclear Complexes with Switched Metal Arrangements
Specific synthesis of a series of Ir-containing homo- and heterodinuclear complexes with the PNNP (3,5-bis((diphenylphosphino)methyl)pyrazolato) and PNNN ligands (3-(diphenylphosphino)methyl-5-pyridylpyrazolato) is reported. Reaction of the PNNX-H precursors (X = P, N) with [Ir(cod)2]BF4 gives pale yellow precipitates, which are characterized as the cyclic dimers of the 1:1 adduct, [(μ-κ1(P): κ2(N,X)-PN