title: Template-Directed Approach Towards the Realization of Ordered Heterogeneity in Bimetallic Metal-Organic Frameworks.
abstract: Controlling the arrangement of different metal ions to achieve ordered heterogeneity in metal-organic frameworks (MOFs) has been a great challenge. Herein, we introduce a template-directed approach, in which a 1D metal-organic polymer incorporating well-defined binding pockets for the secondary metal ions used as a structural template and starting material for the preparation of well-ordered bimetallic MOF-74s under heterogeneous-phase hydrothermal reaction conditions in the presence of secondary metal ions such as Ni2+and Mg2+in 3 h. The resulting bimetallic MOF-74s were found to possess a nearly 1:1 metal ratio regardless of their initial stoichiometry in the reaction mixture, thus demonstrating the possibility of controlling the arrangement of metal ions within the secondary building blocks in MOFs to tune their intrinsic properties such as gas affinity.
authors.affiliation: Graduated School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.
authors.forename: Daeok
authors.initials: D
authors.lastname: Kim
authors.affiliation: Graduated School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.|KAIST Institute NanoCentury, Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.
authors.forename: Ali
authors.identifier: 0000-0002-4760-1546
authors.initials: A
authors.lastname: Coskun
keywords: CO2 capture; metal-organic frameworks; microporous materials; supramolecular chemistry