Messages in Molecules: Ligand/Cation Coding and Self-Recognition in a Constitutionally Dynamic System of Heterometallic Double Helicates
作者:Annie Marquis、Virginia Smith、Jack Harrowfield、Jean-Marie Lehn、Haiko Herschbach、Rossella Sanvito、Emmanuelle Leize-Wagner、Alain Van Dorsselaer
DOI:10.1002/chem.200600143
日期:2006.7.17
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
Helicate self-assembly from heterotopic ligand strands of specific binding site sequence
作者:Virginia C. M. Smith、Jean-Marie Lehn
DOI:10.1039/cc9960002733
日期:——
Linear ligands containing a sequence of three bipyridine B and terpyridine T units form homo- or hetero-nuclear duplex helicates with CuI, CuII and FeII ions; of particular interest is the case of a [(BTB)CuIICuIICuII(TBT)] combination which amounts to the translation of one strand into the other one by virtue of the B–T correspondence established by the five-coordinate CuII ions.
含有三个联吡啶 B 单元和萜吡啶 T 单元序列的线性配体与 CuI、CuII 和 FeII 离子形成同核或异核双螺旋结构;特别有趣的是[(BTB)CuIICuIICuII(TBT)]组合,它相当于通过五配位 CuII 离子建立的 B-T 对应关系将一条链转化为另一条链。