Mechanically interlocked architectures such as rotaxanes and catenanes are prime candidates for the construction of molecular machines and the fabrication of molecular electronic devices.
In this NJC paper, Kathleen Mullen and co-workers (Queensland University of Technology, Brisbane, Australia) report a “click” methodology towards bipyridinium porphyrin [2]rotaxanes. An X-ray study of the strapped zinc metalloporphyrin revealed that the wheel adopts a 1-dimensional coordination polymer arrangement in the solid state, in which an oxygen atom in the strap of one macrocycle is coordinated to the zinc metal center in an adjacent porphyrin ring.
“New approaches to the synthesis of strapped porphyrin containing bipyridinium [2]rotaxanes”
Victoria Raymont, Hannah Wilson, Michael Pfrunder, John C. McMurtrie and Kathleen M. Mullen
New J. Chem., 2013, Advance Article, DOI:10.1039/c2nj40762k.
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