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| Syntheses, crystal structures, and diametrically opposed mechanically-stimulated luminescence response of two Mg(Ⅱ) metal-organic frameworks |
| Author Name | Affiliation | E-mail | | CHEN Yukun | School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China | | | FENG Kexin | School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China | | | ZHANG Bolun | School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China | | | SONG Wentao | School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China | | | ZHANG Jianjun | School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China | zhangjj@dlut.edu.cn |
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| Abstract: The reaction of Mg2+ and 5-{1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl}terephthalic acid (H2L) leads to two metal-organic frameworks, [Mg(L) (DMF)2(H2O)2]2·5DMF·2H2O (1) with a 1D structure and [Mg2(L)2(DMSO)3 (H2O)] (2) with a 2D (4,4)-net structure. Interestingly, the two compounds exhibit distinct luminescent responses to external mechanical stimuli. 1 exhibited exceptional resistance mechanical chromic luminescence (RMCL), which can be attributed to the predominant hydrogen bonds and the presence of high-boiling-point solvent molecules with-in its structure. 2 had a reversible MCL property, which can be attributed to the dominant π-π weak interactions, coupled with the reversible destruction/restoration of its crystallinity under grinding/fumigation. |
| Keywords: metal-organic framework crystal structure mechanical chromic luminescence resistance mechanical chromic luminescence weak interaction |
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| CHEN Yukun,FENG Kexin,ZHANG Bolun,SONG Wentao,ZHANG Jianjun.Syntheses, crystal structures, and diametrically opposed mechanically-stimulated luminescence response of two Mg(Ⅱ) metal-organic frameworks[J].Chinese Journal of Inorganic Chemistry,2025,41(6):1227-1234. |
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