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Simultaneous observation of ligand-based fluorescence and phosphorescence within a magnesium-based CP/MOF at room
Lu Zhai1, Wen-Wei Zhang2, Jing-Lin Zuo2
1State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry & Molecular Engineering, Nanjing Tech University, Nanjing 210009, P. R. China. xmren@njtech.edu.cn and State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China. wwzhang@nju.edu.cn.
Abstract:
A highly thermally stable CP/MOF, comprised of Mg(2+) and H2EBTC(2-) with the formula of [Mg(H2EBTC)(DMF)2], emits dual band luminescence centered at 376 and 555 nm. The former is assigned to the fluorescence of H2EBTC(2-) and the latter with 1.63 μs decay lifetime and large Stokes shifts corresponds to the phosphorescence of H2EBTC(2-). To the best of our knowledge, this is the first time the ligand-based phosphorescence in a CP/MOF without any heavy atom at room temperature has been observed.
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