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A 1,2,3,4,5‐Pentaphenylferrocene‐Stoppered Rotaxane Capable of Electrochemical Anion Recognition
Author(s) -
Evans Nicholas H.,
Serpell Christopher J.,
White Nicholas G.,
Beer Paul D.
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201101811
Subject(s) - rotaxane , electrochemistry , chloride , ion , titration , molecule , chemistry , molecular machine , molecular recognition , combinatorial chemistry , catenane , supramolecular chemistry , materials science , inorganic chemistry , electrode , nanotechnology , organic chemistry
The chloride anion templated synthesis of an electrochemical anion sensory interlocked host system, prepared by the integration of redox‐active 1,2,3,4,5‐pentaphenylferrocene stopper groups into the structure of a rotaxane capable of binding anionic guests is described. Extensive 1 H NMR and electrochemical titration investigations were used to probe the anion recognition and sensing properties of the rotaxane, compared to the axle and model system components. A characteristic electrochemical response was observed for chloride binding by the rotaxane, which was attributed to the topologically constrained cavity of the interlocked host molecule.