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Paper | Regular issue | Vol 48, No. 10, 1998, pp.2133-2139
Published online, 1st January, 1970
DOI: 10.3987/COM-98-8285
Synthesis, Complexation and Fluorescence Behavior of Diaza-12-crown-4 Carrying Two Naphthyl Pendants

Kanji Kubo,* Emi Yamamoto, and Tadamitsu Sakurai

*Instituete of Advanced Material Study, Kyushu University, 6-1, Kasuga-koen, Kasuga 816-8580, Japan


N,N’-Bis(1-naphthylmethyl)-4,10-diaza-12-crown-4 (2) was found to display unique photophysical properties in the presence of the guest metal salts. The diazacrown (2) exhibited high Zn2+ enhancement selectivity and in the presence of this cation the host fluorescence intensities were increased by a factor of 43. The guest cation-induced fluorescence recovery of 2 was higher than N,N’-bis(1-naphthylmethyl)-4,13-diaza-18-crown-6 (1).