Tripodal Tris-tacn and Tris-dpa Platforms for Assembling Phosphate-Templated Trimetallic Centers
作者:Rui Cao、Peter Müller、Stephen J. Lippard
DOI:10.1021/ja108212v
日期:2010.12.15
phosphate-metabolizing trimetallic centers in biology were prepared. Four such compounds, [(Cu(II)Cl)3(HPO4)L1](PF6) (1), [(Cu(II)Cl)3(HAsO4)L1](PF6) (2), Na2[Mn(III)6Mn(II)2(H2O)2(HPO4)6(PO4)4(L1)2] (3), and [Co(II)3(H2PO4)Cl2(MeCN)L2](PF6)3 (4), all containing three metal centers bound to a central phosphate or arsenate unit bridging oxygen atoms, have been synthesized and structurally characterized. These
多齿三足配体 N(CH2-m-C6H4-CH2tacn)3 (L1) 和 N(CH2-o-C6H4-CH2N(CH2py)2)3 (L2) 已被设计用于组装高核金属簇。通过使用具有不同配体附件(三氮杂环壬烷或二吡啶胺)的相同三足平台,并功能化三(二甲苯基)连接臂上的邻位或间位,制备了与生物学中磷酸盐代谢三金属中心相关的离散三金属磷酸盐单元. 四种这样的化合物,[(Cu(II)Cl)3(HPO4)L1](PF6) (1), [(Cu(II)Cl)3(HAsO4)L1](PF6) (2), Na2[Mn( III)6Mn(II)2(H2O)2(HPO4)6(PO4)4(L1)2] (3) 和 [Co(II)3(H2PO4)Cl2(MeCN)L2](PF6)3 (4) ),所有金属中心都包含与桥接氧原子的中心磷酸盐或砷酸盐单元结合的三个金属中心,已被合成并在结构上进行了表征。这些结果证明了这种新