An Anionic Metal-Organic Framework based on 3,3′,5,5′-tetracarboxylic acid with magnetic refrigeration and ion exchange properties
作者单位：School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology
会议名称：《中国化学会2019年中西部地区无机化学化工学术研讨会》
会议日期：2019年
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
关 键 词：Ln-MOFs Gd(Ⅲ) magnetic refrigeration ion exchange
摘 要：Lanthanide-metal-organic-frameworks (Ln-MOFs) have attracted considerable attations due to combining diversiform structural networks of MOFs with the unique luminescent and magnetic properties of rare earth *** for suitable rare earth ions and ligands is a suitable strategy towards preparation of multifunctional materials.[Gd(bptc)]·[CHNH]·nHO was synthesized through the action between of the 3,3′,5,5′-tetracarboxylic acid ligand (Hbptc) and Gd(NO)·*** crystallizes in the chiral trigonal space group P321/P321 and has a three-dimensional (3D) anionic framework structure with a[(CH)NH]originating from the decomposition of *** crystallographically asymmetric unit consists of one eight-coordinated Gd ion,one bptcand one lattice[(CH)NH].The magnetic study reveals that it displays cryogenic magnetic refrigeration properties with maximum-ΔSm values of 26.36 J kg K at 2.0 K and 7.0 *** was also found that this MOF could adsorb cationic dyes rhodamine B (RHB) via a cation exchange process.