Heterodinuclear Zinc(II)−Iron(III) Complexes and Dinuclear Zinc Complexes as Models for Zinc-Containing Phosphatases
作者:Sabine Albedyhl、David Schnieders、Attila Jancsó、Tamás Gajda、Bernt Krebs
DOI:10.1002/1099-0682(200206)2002:6<1400::aid-ejic1400>3.0.co;2-q
日期:2002.6
Five new dinuclear model complexes for zinc-containing phosphatases with dinucleating ligands have been prepared and characterized by single-crystal X-ray crystallography. The heterodinuclear, μ-alkoxo-bridged zinc(II)−iron(III) complexes 1−3 contain the symmetric ligands N,N,N′,N′-tetrakis[2-(5,6-dimethyl)benzimidazolylmethyl]-1,3-diamino-2propanol (Htdmbpo) and N,N,N′,N′-tetrakis2-[N′′-(2hydrox
已经制备了五种具有双核配体的含锌磷酸酶双核模型复合物,并通过单晶 X 射线晶体学表征。异双核、μ-烷氧桥联锌(II)-铁(III)配合物1-3含有对称配体N,N,N',N'-四[2-(5,6-二甲基)苯并咪唑基甲基]-1 ,3-二氨基-2丙醇 (Htdmbpo) 和 N,N,N',N'-四2-[N''-(2羟乙基)]苯并咪唑基甲基}-1,3-二氨基-2-丙醇 (Hthebpo),和分别为不对称配体 N,N-双[2-(4,5-二甲基)苯并咪唑基甲基]-N',N'-双(2-吡啶基甲基)-1,3-二氨基-2-丙醇 (Hbdmbbppo)。X射线晶体学表明,锌中心呈现三角-双锥配位,而铁中心的八面体配位球由溶剂分子完成。相比之下,锌配合物 4 和 5,它还具有 (alkoxo) (cacodylato) dimetal cores 和 dinucleating 配体在 1 和 3 中使用,在三角