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A Porous Framework as a Variable Chemosensor: From the Response of a Specific Carcinogenic Alkyl‐Aromatic to Selective Detection of Explosive Nitroaromatics
Author(s) -
Xue Hui,
Song Danhua,
Liu Caiping,
Lyu Guangxun,
Yuan Daqiang,
Jiang Feilong,
Chen Qihui,
Hong Maochun
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201802502
Subject(s) - explosive material , alkyl , carcinogen , chemistry , photochemistry , organic chemistry
Selective probing of one molecule from one class of similar molecules is highly challenging due to their similar chemical and physical properties. Herein, a novel metal–organic framework FJI ‐ H15 with flexible porous cages has been designed and synthesized, which can specifically recognize ethylbenzene with ultrahigh enhancement efficiency from a series of alkyl‐aromatics, in which an unusual size‐dependent interaction has been found and proved. It can also selectively detect phenolic‐nitroaromatics among a series of nitroaromatics based on energy transfer and electrostatic interactions. Such unusual specificity and variable mechanisms responding to different types of molecules have not yet been reported, which will provide a new strategy for the development of more effective chemosensors based on MOFs for probing small structural differences in molecules.