College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, China.
Dalton Trans. 2012 Feb 21;41(7):2078-83. doi: 10.1039/c1dt11206f. Epub 2011 Dec 21.
Two novel 3-D coordination polymers with different Cu(II) subunits as nodes and mixed bridging ligands as linkers, namely Cu(5)(μ(3)-OH)(2)(1,3-bip)(2)(CH(3)O-ip)(4) (1) and {[Cu(4)(1,3-btp)(2)(CH(3)O-p)(4)(H(2)O)(2)]·2H(2)O}(n) (2) (CH(3)O-H(2)ip = 5-methoxyisophthalate, 1,3-bip = 1,3-bis(imidazol)propane, 1,3-btp = 1,3-bis(1,2,4-triazol-1-yl)propane), were prepared under hydrothermal conditions. Complex 1 exhibits a CsCl-type network with Cu(5)(μ(3)-OH)(2) clusters acting as nodes, which represents the first 3-D network based on pentanuclear Cu(II) clusters. Complex 2 features a 3-D pillared-layer network with (4,6)-connected (4(4).6(2))(4(4).6(8).8(3))-fsc topology, which is a rare example of homometallic coordination polymers constructed by alternate binuclear metal clusters and single metal centres. Variable-temperature magnetic susceptibility measurements show dominant ferromagnetic interactions in the pentanuclear clusters of 1 and strong antiferromagnetic interactions in the dinuclear paddle-wheel units of 2.
两个具有不同 Cu(II)亚基作为节点和混合桥联配体作为连接体的新型 3-D 配位聚合物，即 Cu(5)(μ(3)-OH)(2)(1,3-bip)(2)(CH(3)O-ip)(4) (1) 和 {[Cu(4)(1,3-btp)(2)(CH(3)O-p)(4)(H(2)O)(2)]·2H(2)O}(n) (2) (CH(3)O-H(2)ip = 5-甲氧基异酞酸，1,3-bip = 1,3-双(咪唑)丙烷，1,3-btp = 1,3-双(1,2,4-三唑-1-基)丙烷)，是在水热条件下制备的。配合物 1 呈现出 CsCl 型网络结构，其中 Cu(5)(μ(3)-OH)(2) 簇作为节点，这代表了第一个基于五核 Cu(II)簇的 3-D 网络。配合物 2 具有 3-D 支柱层网络结构，具有 (4,6)-连接 (4(4).6(2))(4(4).6(8).8(3))-fsc 拓扑结构，这是由交替双核金属簇和单金属中心构建的同金属配位聚合物的罕见例子。变温磁化率测量表明，1 中的五核簇中存在主导的铁磁相互作用，而 2 中的双核桨轮单元中存在强反铁磁相互作用。
