Dinuclear Copper(II) Phosphonates Containing Chelating Nitrogen Ligands: Synthesis, Structure, Magnetism and Nuclease Activity
作者:Vadapalli Chandrasekhar、Tapas Senapati、Rodolphe Clérac
DOI:10.1002/ejic.200900035
日期:2009.4
The reaction of Cu(ClO4)2*6H2O with RPO3H2 (R = cyclopentyl, isopropyl, trichloromethyl) in the presence of chelating nitrogen ligands bpya or bpy afforded dinuclear copper phosphonates [Cu2(μ2-C5H9PO3)2(bpya)2(H2O)2] (H2O)4 (1), [Cu2(μ2-C3H7PO3)2(bpya)2(H2O)2] (H2O)2 (2) and [Cu2(μ2-CCl3PO3)2(bpy)2(MeOH)2] (H2O) (3) [bpya = 2,2′-bipyridylamine, bpy = 2,2′-bipyridine]. The molecular structures of these
在螯合氮配体 bpya 或 bpy 存在下,Cu(ClO4)2*6H2O 与 RPO3H2(R = 环戊基、异丙基、三氯甲基)反应得到双核膦酸铜 [Cu2(μ2-C5H9PO3)2(bpya)2(H2O) 2] (H2O)4 (1), [Cu2(μ2-C3H7PO3)2(bpya)2(H2O)2] (H2O)2 (2) 和 [Cu2(μ2-CCl3PO3)2(bpy)2(MeOH) 2] (H2O) (3) [bpya = 2,2'-联吡啶胺,bpy = 2,2'-联吡啶]。这些配合物的分子结构表明它们是同构的并且具有两个铜中心,这些铜中心通过两个异二齿膦酸酯配体相互桥接,产生一个八元 Cu2O4P2 环。对 2 的磁性研究揭示了低温下的反铁磁行为。