A novel calix[4]arene-based neutral semicarbazone receptor for anion recognition
摘要:
A series of novel calix[4]arene-based neutral semicarbazone and thiosemicarbazone receptors have been synthesized and characterized. The molecular receptor 4a recognizes HSO4- in preference to other anions (C1(-), Br-, I-, ClO4-, H2PO4- and PF6-) through a 1:1 binding-stoichiometry. (C) 2007 Elsevier Ltd. All rights reserved.
A novel calix[4]arene-based neutral semicarbazone receptor for anion recognition
摘要:
A series of novel calix[4]arene-based neutral semicarbazone and thiosemicarbazone receptors have been synthesized and characterized. The molecular receptor 4a recognizes HSO4- in preference to other anions (C1(-), Br-, I-, ClO4-, H2PO4- and PF6-) through a 1:1 binding-stoichiometry. (C) 2007 Elsevier Ltd. All rights reserved.
A new class of functionalized calix[4]arenes have been synthesized and evaluated for colorimetric detection of fluoride ions. The molecular receptor 4b selectively recognizes fluoride ions via H-bonds and subsequent deprotonation to elicit a distinct colour change from yellow to dark purple.
A series of novel calix[4]arene-based neutral semicarbazone and thiosemicarbazone receptors have been synthesized and characterized. The molecular receptor 4a recognizes HSO4- in preference to other anions (C1(-), Br-, I-, ClO4-, H2PO4- and PF6-) through a 1:1 binding-stoichiometry. (C) 2007 Elsevier Ltd. All rights reserved.