Programmed Pore Architectures in Modular Quaternary Metal鈥揙rganic Frameworks

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• 作者：Lujia Liu ; Kristina Konstas ; Matthew R. Hill ; Shane G. Telfer
• 刊名：Journal of the American Chemical Society
• 出版年：2013
• 出版时间：November 27, 2013
• 年：2013
• 卷：135
• 期：47
• 页码：17731-17734
• 全文大小：348K
• 年卷期：v.135,no.47(November 27, 2013)
• ISSN：1520-5126

文摘

To generate metal鈥搊rganic frameworks (MOFs) that are complex and modular yet well ordered, we present a strategy employing a family of three topologically distinct linkers that codes for the assembly of a highly porous quaternary MOF. By introducing substituted analogues of the ligands, a set of eight isoreticular frameworks is delivered, with the MOF structure systematically varied while the topology is maintained. To combat randomness and disorder, the substitution patterns of the ligands are designed to be compatible with their crystallographic site symmetries. MOFs produced in this way feature 鈥減rogrammed pores鈥濃€攎ultiple functional groups compartmentalized in a predetermined array within a periodic lattice鈥攁nd are capable of complex functional behavior. In these examples unconventional CO₂ sorption trends, including capacity enhancements close to 100%, emerge from synergistic effects. Future PP-MOFs may be capable of enzyme-like heterogeneous catalysis and ultraselective adsorption.