Emissive Platinum(II) Cages with Reverse Fluorescence Resonance Energy Transfer for Multiple Sensing

被引：196

作者：

Zhang, Zeyuan ^{[2
]}

Zhao, Zhengqing ^{[2
]}

Wu, Lianwei ^{[1
]}

Lu, Shuai ^{[3
,4
]}

Ling, Sanliang ^{[5
]}

Li, Guoping ^{[6
]}

Xu, Letian ^{[6
]}

Ma, Lingzhi ^{[2
]}

Hou, Yali ^{[2
]}

Wang, Xingchen ^{[2
]}

Li, Xiaopeng ^{[3
]}

He, Gang ^{[6
]}

Wang, Kai ^{[1
]}

Zou, Bo ^{[1
]}

Zhang, Mingming ^{[2
]}

机构：

[1] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Shaanxi Int Res Ctr Soft Matter, Sch Mat Sci & Engn, Xian 710049, Peoples R China

[3] Univ S Florida, Dept Chem, Tampa, FL 33620 USA

[4] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China

[5] Univ Nottingham, Adv Mat Res Grp, Fac Engn, Nottingham NG7 2RD, England

[6] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2020年 / 142卷 / 05期

基金：

美国国家卫生研究院; 中国国家自然科学基金;

关键词：

TURN-ON FLUORESCENCE; SUPRAMOLECULAR ASSEMBLIES; LIGHT; TETRAPHENYLETHENE; CHEMISTRY; CATALYSIS; STRATEGY;

D O I：

10.1021/jacs.9b12689

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

It is quite challenging to realize fluorescence resonance energy transfer (FRET) between two chromophores with specific positions and directions. Herein, through the self-assembly of two carefully selected fluorescent ligands via metal-coordination interactions, we prepared two tetragonal prismatic platinum(II) cages with a reverse FRET process between their faces and pillars. Bearing different responses to external stimuli, these two emissive ligands are able to tune the FRET process, thus making the cages sensitive to solvents, pressure, and temperature. First, these cages could distinguish structurally similar alcohols such as n-butanol, t-butanol, and i-butanol. Furthermore, they showed decreased emission with bathochromic shifts under high pressure. Finally, they exhibited a remarkable ratiometric response to temperature over a wide range (223-353 K) with high sensitivity. For example, by plotting the ratio of the maximum emission (I-600/I-480) of metallacage 4b against the temperature, the slope reaches 0.072, which is among the highest values for ratiometric fluorescent thermometers reported so far. This work not only offers a strategy to manipulate the FRET efficiency in emissive supramolecular coordination complexes but also paves the way for the future design and preparation of smart emissive materials with external stimuli responsiveness.

引用

页码：2592 / 2600

页数：9

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