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Anion complexation by calix[4]arene–TTF conjugates
- 1.0367786 - ÚACH 2013 RIV GB eng J - Journal Article
Flídrová, K. - Tkadlecová, M. - Lang, Kamil - Lhoták, P.
Anion complexation by calix[4]arene–TTF conjugates.
Dyes and Pigments. Roč. 92, č. 1 (2012), s. 668-673. ISSN 0143-7208. E-ISSN 1873-3743
R&D Projects: GA ČR GA203/09/0691
Institutional research plan: CEZ:AV0Z40320502
Keywords : calix[4]arene * tetrathiafulvalene * anion recognition * receptor * NMR titration * UV/vis spectroscopy
Subject RIV: CA - Inorganic Chemistry
Impact factor: 3.532, year: 2012
Calix[4]arenes bearing tetrathiafulvalene (TTF) moieties appended to the upper rim via the amidic functions were synthesized and used for 1H NMR and UV/Vis complexation studies towards selected anions. It was found that the complexation affinity towards H2PO4− dramatically depends on the substitution pattern of the calixarene moiety. As a result, the proximally disubstituted derivative has a complexation constant by two orders of magnitude higher than the distally disubstituted analogue. The differences between proximal and distal receptors were also documented by their behaviour during the oxidation of the attached TTF units.
Permanent Link: http://hdl.handle.net/11104/0006686
Number of the records: 1