Tetragonal versus Hexagonal: Structure-Dependent Catalytic Activity of Co/Zn Bimetallic Metal–Organic Frameworks
作者:Anand Pariyar、Hooman Yaghoobnejad Asl、Amitava Choudhury
DOI:10.1021/acs.inorgchem.6b01288
日期:2016.9.19
frameworks (MOFs), with secondary building units (SBUs) containing a M3O (M = metal) cluster, were synthesized from identical constituents using a benzenetricarboxylate (BTC3–) linker that forms decorated 3,6- and 3,5-connected networks, respectively. There exist subtle differences between the SBUs; one of the metal atoms in the M3O cluster in the tetragonal phase has one dissociable DMF solvent molecule
单金属锌和双金属Co / Zn金属有机骨架(MOF)的四方相和六方相,以及包含M 3 O(M =金属)簇的二级建筑单元(SBU),是使用三羧酸苯酯(BTC 3)从相同的成分合成的–)链接器,分别形成装饰性的3,6-和3,5-连接的网络。SBU之间存在细微的差异;M 3中的金属原子之一四方相中的O簇具有一个可分解的DMF溶剂分子,而六方相中的O簇具有三个可分解的DMF溶剂分子。SBU之间的连通性在两个MOF中形成一维通道。这些MOF催化胺向环氧化物的化学选择性加成,在非均相条件下仅生成β-羟胺。对称环氧化物的开环反应表明,六方相非对映选择性地产生反式醇,表现出依赖于结构的活性的精美模型。