A bis(arylphosphinito)amide pincer ligand that binds nickel forming six-membered metallacycles
作者: Quinton J. BruchAlexander J.M. Miller
作者单位: 1Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3290, United States
刊名: Polyhedron, 2020, Vol.179
来源数据库: Elsevier Journal
DOI: 10.1016/j.poly.2020.114380
关键词: Pincer ligandNickelCoordination chemistryHydridePNPPONOPPhosphine
英文摘要: Abstract(#br)The synthesis of a bis(arylphosphinito)amide pincer ligand P 2 ONO − designed to form two six-membered rings upon metallation is reported. Phosphination of a known bis(phenolato)amide ONO 3− scaffold led to isolation of two isomers: the intended H(P 2 ONO) preligand with an amine moiety is formed as a kinetic product, which isomerizes via net oxidative addition of the amine N−H to phosphorous to yield a benzoxazaphosphole-containing thermodynamic product. Both isomers undergo productive metallation with NiBr 2 (dimethoxyethane) to produce the same complex, (P 2 ONO)NiBr. Treatment with triethylborohydride furnished the terminal hydride complex (P 2 ONO)NiH. The bromide and hydride complexes enabled comparisons of the steric and electronic properties of the P 2 ONO − ligand...
全文获取路径: Elsevier  (合作)
影响因子:1.813 (2012)

  • membered 有肢的
  • amide 酰胺
  • forming 成形
  • ligand 配合体
  • pincer 
  • chemistry 化学
  • nickel