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ChemInform Abstract: New Azobenzene Crown p-tert-Butylcalix[4]arenes as Switchable Receptors for Na+ and K+ Ions: Synthesis and Isomerization Studies.

✍ Scribed by Bongkot Pipoosananakaton; Mongkol Sukwattanasinitt; Nongnuj Jaiboon; Narongsak Chaichit; Thawatchai Tuntulani

Book ID: 101906951
Publisher: John Wiley and Sons
Year: 2001
Weight: 29 KB
Volume: 32
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200111158

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Abstract

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Preparation of new azobenzene crown ethe

Preparation of new azobenzene crown ether p-tert-butylcalix[4]arenes and their roles as switchable ionophores for Na+ and K+ ions

✍ Bongkot Pipoosananakaton; Mongkol Sukwattanasinitt; Nongnuj Jaiboon; Narongsak C 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 110 KB

New azobenzene crown ether p-tert-butylcalix [4]arenes (6 and 7) have been synthesized by reductive coupling reactions between two nitrobenzene groups. Their isomerization and switchable binding properties towards Na + and K + were studied by 1 H NMR spectroscopy. The results showed that Na + prefer