基于氮杂二烯-芘衍生物的 Hg2+-选择性比率和“关-开”型化学传感器。
Hg2+-selective ratiometric and "off-on" chemosensor based on the azadiene-pyrene derivative.
机构信息
College of Science, Nanjing University of Technology, Nanjing 210009, P. R. China.
出版信息
Org Lett. 2010 Jun 4;12(11):2566-9. doi: 10.1021/ol1007636.
PMID:20450147
Abstract
A new pyrene-based derivative bearing an azadiene group was synthesized as a ratiometric chemosensor for Hg(2+) in aqueous acetonitrile solution. The "off-on" type signaling behavior of the fluoroionophore is due to the metal ion induced conformational changes from the weak pyrene monomer emissions to strong pyrene excimer emission.
摘要
一种新型的基于芘的衍生物被合成出来，它带有一个氮杂二烯基团，作为一种比率型化学传感器，用于在含水乙腈溶液中检测 Hg(2+)。荧光团的“关-开”型信号行为是由于金属离子诱导的构象变化，从弱的芘单体发射到强的芘激基缔合物发射。
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