Syntheses and structures of highly hindered N-functionalised alkyl and amido group 12 complexes MR2 (M=Zn, Cd, and Hg), [MRCl]2 (M=Zn and Hg)
作者:Tania R van den Ancker、Lutz M Engelhardt、Mark J Henderson、Geraldine E Jacobsen、Colin L Raston、Brian W Skelton、Allan H White
DOI:10.1016/j.jorganchem.2004.03.023
日期:2004.6
Abstract The reaction of MCl2 (M=Zn, Cd and Hg) with Li(2-(C(SiMe3)2)(6-Me–C5H3N)), [Li(MeR)], affords mononuclear metal(II) alkyls. These, in the solid state, show intramolecular M–N interactions in their four-membered chelate rings, which progressively weaken down the series, the C–M–C angles becoming more open (〈M–N〉= 2.30(2), 2.52(2), 2.913(4) A, C–M–C=160.7(2), 168.5(2), 180(-)°). Alkylmercury
摘要 MCl2 (M=Zn, Cd 和 Hg) 与 Li(2-(C(SiMe3)2)(6-Me–C5H3N)), [Li(MeR)] 反应生成单核金属 (II) 烷基。这些在固态下,在它们的四元螯合环中显示出分子内 M-N 相互作用,逐渐减弱系列,C-M-C 角变得更加开放(= 2.30(2), 2.52(2), 2.913(4) A, C–M–C=160.7(2), 168.5(2), 180(-)°)。通过 HgCl2 与 [Li(MeR)]、Li(2-(C(SiMe3)2)(C5H4N))、[Li(HR)] 或 Li(2-(NSiMe3) 反应制备烷基氯化汞络合物(6-Me–C5H3N))、[Li(mpsa)],或来自二烷基(或氨基)汞络合物与 HgCl2 的再分配反应。烷基氯化汞络合物本质上是二聚体或聚合体,具有近线性的 2-配位;(Hg–Cl=2.329(5), 2.318(4)