Anomalous fluorescent responses of 9-fluorenecarboxamide derivatives possessing benzo-15-crown-5.

نویسندگان

  • Hiroya Hama
  • Tatsuya Morozumi
  • Hiroshi Nakamura
چکیده

A new fluorescent ionophore for alkaline earth metal ions, 4'-(9-fluorenecarboxamido)benzo-15-crown-5 (3), was synthesized; its photochemical behavior was investigated using UV, fluorescence, (1)H NMR, and (13)C NMR spectrometry. In the absence of a metal ion, the fluorene moiety showed weak fluorescence emission (fluorescence "Off" state). However, complexation with metal ions greatly enhanced the fluorescence intensity (fluorescence "On" state).

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عنوان ژورنال:
  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

دوره 23 11  شماره 

صفحات  -

تاریخ انتشار 2007