A New Highly Selective, Ratiometric and Colorimetric Fluorescence Sensor for Cu2+ with a Remarkable Red Shift in Absorption and Emission Spectra Based on Internal Charge Transfer
A New Highly Selective, Ratiometric and Colorimetric Fluorescence Sensor for Cu2+ with a Remarkable Red Shift in Absorption and Emission Spectra Based on Internal Charge Transfer
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DOI：
10.1021/ol9029066
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发表时间：
2010-02-19
期刊：
影响因子：
5.2
通讯作者：
Das, Nirmal Kumar
中科院分区：
文献类型：
--
作者：
Goswami, Shyamaprosad;Sen, Debabrata;Das, Nirmal Kumar
设计并合成了一种新的基于1，8-二氨基萘的比率和高选择性比色的“关-开”型荧光探针--受体2，在基于内部电荷转移(ICT)检测的其他重金属离子和过渡金属离子中，它仅能感应Cu2+。受体2的视觉灵敏度是显著的，表现出从无色(受体)到紫色再到蓝色的双重颜色变化，以及Cu2+络合时发射的大红移。
A new 1,8-diaminonaphthalene based ratiometric and highly selective colorimetric "off-on" type of fluorescent probe, receptor 2 has been designed and synthesized that senses only Cu2+ among the other heavy and transition metal ions examined on the basis of Internal charge transfer (ICT). The visual sensitivity of the receptor 2 Is remarkable, showing dual color changes from colorless (receptor) to purple followed by blue and a large red shift in emission upon Cu2+ complexation.