A New Ligand for Europium(III) That Forms a Stable Fluorescent Complex in Aqueous Solution.
作者:Daikichi HORIGUCHI、Yoshiki KATAYAMA、Kazumi SASAMOTO、Hideyuki TERASAWA、Naofumi SATO、Hiroshi MOCHIZUKI、Yosuke OHKURA
DOI:10.1248/cpb.40.3334
日期:——
A new macrocyclic ligand for Eu3+, 24, 30-diphenyl-8, 19-(1, 21 : 4, 6 : 10, 12 : 15, 17-tetraetheno-8, 9, 19, 20-tetrahydro-7H, 18H-dibenzo[b, k][1, 4, 7, 10, 13, 16]hexaazacyclooctadecine)diacetic acid (1), was synthesized and its fluorescence characteristics were examined, particulary to compare with 4, 7-bis(chlorosulfophenyl)-1, 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.
一种新的 Eu3+ 大环配体,24, 30-二苯基-8, 19-(1, 21 : 4, 6 : 10, 12 :合成了 24, 30-二苯基-8, 19-(1, 21 : 4, 6 : 10, 12 : 15, 17-四苯并-8, 9, 19, 20-四氢-7H, 18H-二苯并[b, k][1, 4, 7, 10, 13, 16]六氮杂环十八烷)二乙酸(1),并研究了其荧光特性、特别是与 4,7-双(氯磺苯基)-1,10-菲罗啉-2,9-二羧酸(BCPDA)进行了比较,后者已被证明可用作时间分辨荧光免疫测定的标记。与 BCPDA 相比,大环 1 与 Eu3+ 的复合物具有更高的荧光强度和更长的荧光寿命。