Nickel(II) dithiocarbamate complexes containing sulforhodamine B as fluorescent probes for selective detection of nitrogen dioxide.

Nickel(II) dithiocarbamate complexes containing sulforhodamine B as fluorescent probes for selective detection of nitrogen dioxide.
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DOI:
10.1021/ja401555y
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发表时间:
2013-04-10
影响因子:
15
通讯作者:
Huang, Dejian
Huang, Dejian
中科院分区:
化学1区
文献类型:
--
作者:
Yan, Yan;Krishnakumar, Saarangan;Yu, Huan;Ramishetti, Srinivas;Deng, Lih-Wen;Wang, Suhua;Huang, Leaf;Huang, Dejian

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我们合成了以硫代罗丹明B的邻位和帕拉异构体为配体的二硫代氨基甲酸镍配合物,并证明了它们对二氧化氮(NO2)的反应具有高度的选择性。与帕拉异构体相比,邻位异构体在与二氧化氮反应时表现出更大的荧光增强,这导致二硫代氨基甲酸酯配体从Ni(II)氧化和脱络合。我们应用该探针进行气相中1ppm二氧化氮的视觉检测和用氮氧化物供体处理的巨噬细胞中NO2的荧光成像。
We synthesized the Ni(II) complexes with dithiocarbamate ligand derived from ortho and para isomers sulforhodamine B fluorophores and demonstrated they are highly selective in reaction with nitrogen dioxide (NO2). Comparing to the para isomer, the ortho isomer showed much greater fluorescence increase upon reaction with nitrogen dioxide, which led to oxidation and de-complexation of dithiocarbamate ligand from Ni(II). We applied this probe for visual detection of 1 ppm nitrogen dioxide in gas phase and fluorescence imaging of NO2 in macrophage cells treated with nitrogen oxide donor.
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