Messages in molecules: Ligand/cation coding and self-recognition in a constitutionally dynamic system of heterometallic double helicates
Messages in molecules: Ligand/cation coding and self-recognition in a constitutionally dynamic system of heterometallic double helicates
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DOI：
10.1002/chem.200600143
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发表时间：
2006-07-17
影响因子：
4.3
通讯作者：
Van Dorsselaer, Alain
中科院分区：
文献类型：
--
作者：
Marquis, Annie;Smith, Virginia;Van Dorsselaer, Alain
已知的双螺旋化合物具有自识别特性，它由所涉及的金属的配位几何构型以及配体的拓扑性质决定。根据金属的配位性质，将三齿(联吡啶，T)或双齿(联吡啶，B)亚基组合在三齿链中，提供了一组能够成对组装形成双螺旋、同链或异链、同位或异位的配体。四条配体链BBB、TTT、BBT和TBT与金属离子铜-I、铜-II和锌-II形成结构性的动态双螺旋结构；这些螺旋分别对应于四配位、五向和六配位的铜-I、铜-II和锌-II阳离子的BB、BT和TT对的正确编码。
Double helicates are known to exhibit self-recognition characteristics determined by the coordination geometry of the metal involved as well as by the topicity of the ligands. Combining tridentate (terpyridine, T) or bidentate (bipyridine, B) subunits in a tritopic strand affords a set of ligands able to assemble by pairs to form double helicates, homo- or heterostranded, homo- or heterotopic, depending on the coordination properties of the metals involved. The four ligand strands, BBB, TTT, BBT, and TBT form constitutionally dynamic sets of double helicates with the metal ions Cu-I, Cu-II, and Zn-II; these helicates correspond to the correct coding of the BB, BT, and TT pairs for tetra-, penta-, and hexacoordinate Cu-I, Cu-II, and Zn-II, cations, respectively.