Electrochemical anion recognition with ferrocene functionalised macrocycles

Bernhardt, Paul V. and Creevey, Nicole L. (2004) Electrochemical anion recognition with ferrocene functionalised macrocycles. Dalton Transactions, 6 6: 914-920. doi:10.1039/b400538d

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Author Bernhardt, Paul V.
Creevey, Nicole L.
Title Electrochemical anion recognition with ferrocene functionalised macrocycles
Journal name Dalton Transactions   Check publisher's open access policy
ISSN 1477-9226
Publication date 2004
Sub-type Article (original research)
DOI 10.1039/b400538d
Open Access Status File (Publisher version)
Volume 6
Issue 6
Start page 914
End page 920
Total pages 7
Place of publication Cambridge
Publisher Royal Society of Chemistry
Collection year 2004
Language eng
Subject C1
250201 Transition Metal Chemistry
780103 Chemical sciences
Abstract The syntheses and characterization of two new redox active cyclam ligands ferrocenylmethyl-(6-methyl-1,4,8,11-tetraazacyclotetradec-6-yl)-amine(L-3) and 1, 1'-ferrocenylmethyl-bis(6-methyl-1,4,8,11-tetraazacyclotetradec-6-yl)-amine (L-4) are reported. The compounds each possess a ferrocenyl group bearing one (L-3) or two (L-4) appended macrocycles linked by their exocyclic amino groups and the crystal structures of both compounds have been determined. Anion binding of L-3 and L-4 was investigated by electrochemical titrations where H-bonding to each macrocycle causing a shift in the Fc(+/0) redox potential was used as a reporter of guest binding. The Zn-II complex of L-3 has also been isolated and characterized structurally. These compounds were analysed for their capacity to electrochemically recognize anions in both aqueous and non-aqueous solution. We have found that L-3, L-4 and [ZnL3-](2+) sense Cl- and AcO- anions in MeCN-CH2Cl2, a function that is lost in aqueous solution.
Keyword Chemistry, Inorganic & Nuclear
Electronic-energy Transfer
Crystal-structure
Transition-metal
Coordination
Complexes
Zinc(ii)
6,13-dimethyl-1,4,8,11-tetraazacyclotetradecane-6,13-diamine
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 04:04:26 EST