We report the synthesis of tetrameric Cu(i) and Ag(i) homoleptic complexes supported by the tris(piperidinyl)imidophosphorane [NP(pip)3]1- and [NP(1,2-bis-tBu-diamidoethane)(NEt2)]1- ligands. These complexes demonstrate the redox stability of the imidophosphorane ligands to oxidizing salts, and the silver complexes can, in turn, serve as oxidative transmetallation reagents for the isolation of tetravalent cerium complexes from cerium metal or trivalent cerium precursors.

中文翻译：

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铸造金属三（二烷基酰胺基）亚氨基正膦配合物作为铈配合物的金属转移试剂。

我们报告了由三（哌啶子基）亚氨基正膦[NP（pip）3] 1-和[NP（1,2-双-tBu-二氨基乙烷基）（NEt2）支持的四聚体Cu（i）和Ag（i）均配配合物）] 1-配体。这些配合物证明了亚氨基磷烷配体对氧化盐的氧化还原稳定性，而银配合物又可以用作氧化性金属转移试剂，用于从铈金属或三价铈前体中分离出四价铈配合物。