期刊
CHEMICAL SCIENCE
卷 4, 期 4, 页码 1793-1801出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sc00016h
关键词
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资金
- National Basic Research Program of China (973 Program) [2012CB821706, 2013CB834803]
- National Natural Science Foundation for Distinguished Young Scholars of China [20825102]
- National Natural Science Foundation of China [21171114, 91222202]
A new luminescent entangled (srs nets with two-fold interpenetration, linked via short Cu center dot center dot center dot Cu distances of ca. 2.8 angstrom) MOF, namely, [(CuCN)(3)L center dot(guest)(x)](n) (L = 2,6-bis((3,5-dimethyl-1H-pyrazol-4-yl)methyl)pyridine; x = 1 or 2), which contains microporous channels, is synthesized. This MOF material shows structural dynamics upon adsorption of various volatile organic solvent molecules, accompanied by reversible guest responsive colour changes of the fluorescence emission that are discernible by the naked eyes. The vacuated form of this material can also exhibit qualitative solvate-optical sensing behaviours toward various mixed solvents. Moreover, a quantitative real-time monitoring device is constructed that implements the determination of acetonitrile vapour pressure through optical response, which causes a drastic emission change from blue to yellow. The detailed structural elucidation provides structure-property understanding for the host-guest responsive dynamics.
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