Wu Meng-Meng, Wang Jiao-Yang, Sun Rui, Zhao Cui, Zhao Jiong-Peng, Che Guang-Bo, Liu Fu-Chen
School of Chemistry and Chemical Engineering, TKL of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology , Tianjin, China 300384.
Key Laboratory of Preparation of Environmental Friendly, Jilin Normal University, Ministry of Education , Changchun, 130103, China.
Inorg Chem. 2017 Aug 21;56(16):9555-9562. doi: 10.1021/acs.inorgchem.7b00939. Epub 2017 Jul 31.
Introducing another chromophore into a luminescent MOF is a potential way to assembling novel dual-emissive luminescent materials. Putting the chromophore, for which luminescence can be enhanced by Zn ion, into MOF-5 by the "bottle around ship" strategy is a simple but efficient synthesis method to realize such dual-emissive materials. According to this strategy, a novel dual-emissive luminescent composite material [Zn(HL)]@MOF-5 was constructed by loading the [La(HL)L(NO)HO] (1) (HL = 7,7'-(ethane-1,1'-diyl)8-hydro-quinoline) into MOF-5, in which the [Zn(HL)] anions were transformed from 1 with the existence of Zn. The dual-emissive composite materials show excellent luminescence with two emissions of MOF-5 at 410 nm and [Zn(HL)] at 524 nm. Furthermore, by combining characteristics of MOF-5 and the guest chromophore, the composite material is highly selectively sensitive toward Al and monoethanolamine, which makes [Zn(HL)]@MOF-5 a potential self-calibrated fluorescence sensor.
