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Detection and Quantifiable Evaluation of Copper(II) Ions through Luminescent Sensing between Two Homologous Metal‐organic Frameworks
Author(s) -
Li Jiang,
Men ChangPeng,
Luo YuQing,
Mo ShaoJie,
Huang WenHuan,
Cui Lin
Publication year - 2018
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700406
Subject(s) - luminescence , quenching (fluorescence) , microporous material , metal organic framework , copper , materials science , ion , metal ions in aqueous solution , acceptor , luminescent measurements , crystallography , metal , chemistry , fluorescence , optoelectronics , organic chemistry , physics , metallurgy , optics , adsorption , composite material , condensed matter physics
Two luminescent metal‐organic frameworks (LMOFs), namely, [Cd 2 (DDCPB) · (DMF) 2 · H 2 O] n (CHD‐ 1 ) and [Zn 2 (DDCPB) · (DMA) 2 ] n · n(DMA) (CHD‐ 2 ), were solvothermally constructed, which present structural diversity. Single crystal X‐ray diffraction analysis indicates that they consist of [Cd 2 (μ2‐O) 2 (κ‐O) 2 ] building units (for CHD‐ 1 ), [Zn 2 (κ‐O) 6 ] building units (for CHD‐ 2 ), which are further linked by multicarboxylate H 4 DDCPB to construct microporous frameworks. Remarkably, both CHD‐ 1 and 2 exhibit highly efficient luminescent sensing for environmentally relevant Cu 2+ ions through luminescence quenching. Theoretical and experimental calculations indicate that the luminescent quenching can be attributes to the donor‐acceptor electron transfer between the MOFs and analytes. This work indicates that CHD‐ 1 and 2 could be taken as a potential candidate for developing multifunctional luminescence sensors.