Stoddart Mechanostereochemistry Group





Stoddart Mechanostereochemistry Group

05 Aug 2010

Cornering a Ring–in–Ring Complex - A Pd(II)–templated ring–in–ring complex assembles on the front cover of Issue 32 of Chemical Communications. Control of the five component self–assembly process is achieved through subtle modification of the 'corner' ligands of the Pd(II) cation. Previously thought to have little effect on complex formation, the group has shown that, by changing an NH2 moiety to an NMe2 group on the 'corner' ligands, intracomplex H–bonding is affected and a ring–in–ring complex is favored over a [3]catenane. The ability to direct self-assembly processes by such a simple modification has implications in the construction of more complex topological entities, such as molecular Borromean Rings.


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