

Author: Kwon O.-S. Kim H.-S.
Publisher: Taylor & Francis Ltd
ISSN: 1061-0278
Source: Supramolecular Chemistry, Vol.19, Iss.4-5, 2007-06, pp. : 277-281
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The binding properties of dibenzo-18-crown-6 ether (BTB, 1) and napthobenzo-18-crown-6 ether (NTB, 2), containing two thiazole units toward mono, and divalent cations, are outlined. The ion-selective properties of 1 and 2 were studied by measuring their fluorescent emission responses to alkali, alkaline earth, and transition metal ions. BTB (1) showed the highest binding constant toward Ag+ over Pb2+, Hg2+, and Cu2+. NTB (2) revealed a high selectivity toward Ag+ over Pb2+, Hg2+, and Cu2+.
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