Marquis Annie, Smith Virginia, Harrowfield Jack, Lehn Jean-Marie, Herschbach Haiko, Sanvito Rossella, Leize-Wagner Emmanuelle, Van Dorsselaer Alain
Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard-Monge, BP 70028, 67083 Strasbourg cedex, France.
Chemistry. 2006 Jul 17;12(21):5632-41. doi: 10.1002/chem.200600143.
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.
已知双螺旋体表现出由所涉及金属的配位几何结构以及配体的拓扑性所决定的自识别特性。在一个三齿链中结合三齿（三联吡啶，T）或双齿（联吡啶，B）亚基，可得到一组能够成对组装形成双螺旋体的配体，这些双螺旋体可以是同链或异链、同位或异位的，这取决于所涉及金属的配位性质。四条配体链，BBB、TTT、BBT和TBT与金属离子Cu(I)、Cu(II)和Zn(II)形成了结构动态的双螺旋体集合；这些螺旋体分别对应于四配位、五配位和六配位的Cu(I)、Cu(II)和Zn(II)阳离子的BB、BT和TT对的正确编码。
