A New Ligand for Europium(III) That Forms a Stable Fluorescent Complex in Aqueous Solution

Daikichi Horiguchi, Yoshiki Katayama, Kazumi Sasamoto, Hideyuki Terasawa, Naofumi Sato, M. Mochizuki, Yosuke Ohkura

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A new macrocyclic ligand for Eu3 +, 24,30-diphenyl-8,19-(l,21:4,6:10,12:15,17-tetraetheno-8,9,19,20-tetrahydro-7AT,18^r-dibenzo[A,^][l,4,7,10,13,16]hexaazacyclooctadecine)diacetic acid (1), was synthesized and its fluorescence characteristics were examined, particularly to compare with 4,7-bis(chlorosulfophenyl)-l,10-phenanthroline-2,9-dicarboxylic acid (BCPDA) that has proved to be useful as a label in time-resolved fluoroimmunoassays. The complex of macrocycle 1 with Eu3+ was found to have a higher fluorescence intensity as well as a longer fluorescence lifetime than that of BCPDA.

Original languageEnglish
Pages (from-to)3334-3337
Number of pages4
JournalChemical and Pharmaceutical Bulletin
Volume40
Issue number12
DOIs
Publication statusPublished - Jan 1 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Drug Discovery

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