Metal‐Ion Metathesis and Properties of Triarylboron‐Functionalized Metal–Organic Frameworks |
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| Authors: | Xiaoqing Wang Liangliang Zhang Jie Yang Fangna Dai Prof Rongming Wang Prof Daofeng Sun |
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| Institution: | 1. Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, P.R. China;2. State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao, Shandong, P.R. China |
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| Abstract: | An anionic metal–organic framework, H3(Mn4Cl)3 L 8]?30 H2O?2.5 DMF?5 Diox ( UPC‐15 ), was successfully prepared by the reaction of MnCl2 with tris(p‐carboxylic acid)tridurylborane (H3 L ) under solvothermal conditions. UPC‐15 with wide‐open pores (～18.8 Å) is constructed by packing of octahedral and cuboctahedral cages, and exhibits high gas‐sorption capabilities. Notably, UPC‐15 shows selective adsorption of cationic dyes due to the anion framework. Moreover, the catalytic and magnetic properties were investigated, and UPC‐15 can highly catalyze the cyanosilylation of aromatic aldehydes. UPC‐15 exhibits the exchange of metal ions from Mn to Cu in a single‐crystal‐to‐single‐crystal manner to generate UPC‐16 , which could not be obtained by the direct solvothermal reaction of CuCl2 and H3 L. UPC‐16 exhibits similar properties for gas sorption, dye separation, and catalytic activity. However, the magnetic behaviors for UPC‐15 and UPC‐16 are distinct due to the metal‐specific properties. Below 47 K, UPC‐15 exhibits a ferromagnetic coupling but UPC‐16 shows a dominant antiferromagnetic behavior. |
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| Keywords: | catalytic gas adsorption magnetic propterties metal-ions exchange metal– organic frameworks selective dye adsorption |
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