Bis(Dpa-ZnII) appended xanthone:: Excitation ratiometric chemosensor for phosphate anions

Bis(Dpa-ZnII) appended xanthone:: Excitation ratiometric chemosensor for phosphate anions
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DOI:
10.1002/anie.200601315
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发表时间:
2006-01-01
影响因子:
16.6
通讯作者:
Hamachi, Itaru
Hamachi, Itaru
中科院分区:
化学1区
文献类型:
--
作者:
Ojida, Akio;Nonaka, Hiroshi;Hamachi, Itaru

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基于氧杂蒽酮的化学传感器具有两个2,2′-吡啶二甲基胺-锌(II)位点,并在结合磷酸盐时在三个波长处显示激发光谱的变化(见图)。这些信号的变化是由于氧杂蒽酮荧光团在锌中心周围的配位重排引起的,这调节了化学传感器的物理化学性质,从而使比率荧光分析成为可能。(图为介绍)。
A xanthone-based chemosensor bears two 2, 2′-dipicolylamine-zinc (II) sites and displays changes in the excitation spectrum at three wavelengths upon binding phosphates (see picture). These changes in the signals arise from the coordination rearrangement of the xanthone fluorophore around the zinc centers, which modulates the photophysical property of the chemosensor, thus enabling ratiometric fluorescent analysis.(Graph Presented).