Ferrocene-based electrochemical chiral sensors.

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http://eprints.org/relation/isVersionOf http://etheses.bham.ac.uk/id/document/17841 http://eprints.org/relation/isVolatileVersionOf http://etheses.bham.ac.uk/id/document/17841 http://eprints.org/relation/isIndexCodesVersionOf http://etheses.bham.ac.uk/id/document/17841 archive 4031 disk0/00/00/31/40 2012-01-26 10:32:57 2019-01-23 09:55:38 2012-01-26 10:32:57 thesis show 0 Mirri Giorgio Tucker James University of Birmingham Ferrocene-based electrochemical chiral sensors. unpub QD QH301 10col_ephy Chiral recognition, determination of enantiomeric excess and the separation of enantiomers are challenging problems for the chemist. This work has as its aim the design and syntheses of new electrochemical chiral receptors for neutral molecules. All the receptors prepared contain a ferrocene group as electroactive reporting unit. The differences among the receptors mainly relate to the binding site and the chiral group. The first type of receptor, presented in Chapter 2, consists of chiral ferrocene containing boronic acids that have been used to electrochemically sense aromatic and aliphatic chiral and achiral diols. The electrochemical determination of the enantiomeric excess of a mixture of two enantiomers of Binol performed with one of these boronic acids represents a new advance in supramolecular chiral sensing. In Chapter 3 the synthesis of ferrocene-containing chiral macrocycles of different sizes is described. The binding site is a cavity featuring a diamidopyridine moiety, with the chirality introduced through a Binol unit. These receptors showed low interaction with achiral cyclic ureas and chiral carboxylic acids. Chapter 4 describes the study of self-assembled monolayers onto gold surfaces. The monolayers are formed by ferrocene-containing amides of lipoic (thioctic) acid and, for the first time, isolipoic acid. The studies indicate that isolipoic acid could be an attractive anchor group for SAM formation when strong control over the chirality of the monolayer is required. 2011-12 graduation eng author unchecked This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. The University of Birmingham public 210 University of Birmingham School of Chemistry d_ph other 2011-12 graduation