A highly selective Schiff base fluorescent chemosensor for Lu3+,Analytical Methods

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A highly selective Schiff base fluorescent chemosensor for Lu3+
Analytical Methods ( IF 2.7 ) Pub Date : 2017-10-10 00:00:00 , DOI: 10.1039/c7ay01808h
Lina Wang _{1,

2,

3,

4} , Juanjuan Tang _{1,

2,

3,

4} , Ning Sui _{2,

3,

4,

5} , Xing Yang _{4,

6,

7,

8,

9} , Luyao Zhang _{1,

2,

3,

4} , Xiaojun Yao _{4,

6,

7,

8,

9} , Qinfei Zhou _{1,

2,

3,

4} , Hailian Xiao _{2,

3,

4,

5} , Shaoping Kuang _{1,

2,

3,

4} , William W. Yu _{2,

3,

4,

5,

10}

Affiliation

A Schiff base derivative, N-(3-methoxy-4-hydroxybenzylidene)salicyloylhydrazone (L), shows high selectivity to Lu³⁺ not only in abiotic systems but also in living cells with fluorescence. The presence of PVP can increase the fluorescence intensity. The fluorescence enhancement is presumably due to a combinational effect of intramolecular charge transfer (ICT) and excited-state intra/intermolecular proton transfer (ESPT) during the chelation of L to Lu³⁺ in a 2 : 1 complex mode.

中文翻译：

适用于Lu ^3+的高选择性Schiff碱型荧光化学传感器

Schiff碱衍生物N-（3-甲氧基-4-羟基亚苄基）水杨酰hydr（L）不仅对非生物系统而且对具有荧光的活细胞都显示出对Lu ^3+的高选择性。PVP的存在可以增加荧光强度。荧光增强大概是由于在L与Lu ³⁺以2：1复杂模式螯合期间分子内电荷转移（ICT）和激发态内/分子间质子转移（ESPT）的组合作用。

更新日期：2017-11-16

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