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Template‐Directed Approach Towards the Realization of Ordered Heterogeneity in Bimetallic Metal–Organic Frameworks
Author(s) -
Kim Daeok,
Coskun Ali
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201702501
Subject(s) - bimetallic strip , metal organic framework , metal , metal ions in aqueous solution , materials science , stoichiometry , ion , realization (probability) , hydrothermal reaction , hydrothermal circulation , nanotechnology , chemistry , chemical engineering , organic chemistry , metallurgy , adsorption , engineering , statistics , mathematics
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 Ni 2+ and Mg 2+ 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.