Unique microporous NbO-type Co^II/Zn^II MOFs from double helical chains: Sorption and luminescent properties

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• 作者：Wen-Wen Dong^a ; Liang Xia^a ; Zhen Peng^a ; Jun Zhao^a ; Ya-Pan Wu^a ; Jian Zhang^b ; Dong-Sheng Li^a ; ^{lidongsheng1@126.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：CoII/ZnII-MOFs ; NbO topology ; Luminescence ; Adsorption ; Two-fold interpenetration
• 刊名：Journal of Solid State Chemistry
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：238
• 期：Complete
• 页码：170-174
• 全文大小：1427 K

文摘

Under solvothermal conditions, the reactions of Co^II/Zn^II ions with bent ligand 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole (4-Hpzpt) afford two compounds {[M(4-pzpt)₂] guest}_n (guest=H₂O, M=Co^II (1), Zn^II (2)). Both compounds are the thermally and hydrolytically robust 4-connected 3D NbO framework, which formed by double helical chains to give rise to 1D hollow nanochannel with uncoordinated nitrogens completely exposed on the pore surface. Compound 1 exhibits improved N₂, CO₂ and H₂ uptake capacities, while compound 2 displays the strong luminescent emission with obvious red shift.