Synthesis and coordination of 2-diphenylphosphinopicolinamide

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• 作者：Milton ; Heather L. ; Wheatley ; Matthew V. ; Slawin ; Alexandra M.Z. ; Woollins ; J.Derek
• 关键词：2-Diphenylphosphinopicolinamide (dpppa 1) ; Coordination chemistry ; Monodentate donors ; Bidentate donors
• 刊名：Polyhedron
• 出版年：2004
• 期刊代码：87_02775387
• 类别：ch
• 出版时间：December 2, 2004
• 卷：23
• 期：18
• 页码：3211-3220
• 文件大小：506 K

摘要

The synthesis and coordination of 2-diphenylphosphinopicolinamide (dpppa 1) is reported. Coordination complexes with Pd, Pt, Ru, Rh, Ir and Au are described. The ligand behaves as a monodentate P donor in complexes such as [PtCl₂(dpppa-P₂)], [PdCl(allyl)(dpppa-P)], [RuCl₂(p-Cymene)(dpppa-P)], cis-[PtCl₂(dpppa-P)(PR₃)] and [AuCl(dpppa-P)]. Bidentate P, O coordination was accomplished by reaction of BuLi with [RuCl₂(p-Cymene)(dpppa-P)], to give [RuCl(p-Cymene)(dpppa-P,O). P,N donor behaviour was achieved by reaction of a monodentate complex with a halide abstractor [AgBF₄] generating [RuCl(p-Cymene)(dpppa-P,N)][ClO₄] and[RhCl(脦脦⁵-C₅Me₅)(dpppa-P,N)][BF₄]. The X-ray structures of dpppa, dpppaO, dpppaS, four monodentate complexes and [RuCl(p-Cymene)(dpppa-P,O) are reported. All of the structures contain intramolecular N脦脦脦H脦脦脦N hydrogen bonding.