Novel Pyrene-armed Calix[4]arenes through Triazole Connection: Ratiometric Fluorescent Chemosensor for Zn2+ and Promising Structure for Integrated Logic Gates

✍ Scribed by Lin-Na ZHU; Shao-Long GONG; Shu-Ling GONG; Chu-Luo YANG; Jin-Gui QIN

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 270 KB
• Volume: 26
• Category: Article
• ISSN: 0256-7660
• DOI: 10.1002/cjoc.200890259

✦ Synopsis

Abstract

Two novel pyrene‐armed calix[4]arenes by triazole connection were synthesized using "click" chemistry. Compound 1 with two pyrene subunits appended to the lower rims of the calix[4]arene shows ratiometric fluorescence response toward Zn^2+^, and selective fluorescence quenching toward heavy metal ions such as Cu^2+^, Hg^2+^ and Pb^2+^; while compound 2 with one pyrene subunit exhibits significant fluorescence quenching toward Cu^2+^ and moderate quenching behaviour toward Hg^2+^. By utilizing the different fluorescence behavior of 1 toward Zn^2+^ and Cu^2+^, inhibition (INH) and not or (NOR) logic gates were established.