Solution and surface-confined chloride anion templated redox-active ferrocene catenanes

Evans, Nicholas H. and Rahman, Habibur and Leontiev, Alexandre V. and Greenham, Neil D. and Orlowski, Grzegorz A. and Zeng, Qiang and Jacobs, Robert M. J. and Serpell, Christopher J. and Kilah, Nathan L. and Davis, Jason J. and Beer, Paul D. (2012) Solution and surface-confined chloride anion templated redox-active ferrocene catenanes. Chemical Science, 3 (4). pp. 1080-1089. ISSN 2041-6520

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The first examples of ferrocene containing catenanes, in solution and assembled on a surface are described. Chloride anion templation is exploited to synthesize redox-active [2]- and [3]-catenanes via Grubbs' ring closing metathesis, utilizing a novel ferrocene-appended isophthalamide macrocycle. X-ray crystal structures of both catenanes were determined. The ability of the [2] catenane to selectively bind and characteristically sense its chloride anion template is demonstrated by use of H-1 NMR and electrochemical voltammetric techniques. Self-assembled monolayers of analogous surface-confined catenanes have been prepared on gold. In addition to being characterized by cyclic voltammetry and ellipsometry, detailed information regarding the structure of the catenane monolayers has been provided by use of angle integrated high resolution X-ray photoelectron spectroscopy.

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Journal Article
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Chemical Science
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07 Aug 2013 10:30
Last Modified:
22 Nov 2022 00:04