title: Three-Dimensional Covalent Organic Frameworks with Dual Linkages for Bifunctional Cascade Catalysis.
abstract: Covalent organic frameworks (COFs) are an emerging class of porous crystalline polymers with broad potential applications. So far, the availability of three-dimensional (3D) COFs is limited and more importantly only one type of covalent bond has been successful used for 3D COF materials. Here, we report a new synthetic strategy based on dual linkages that leads to 3D COFs. The obtained 3D COFs show high specific surface areas and large gas uptake capacities, which makes them the top COF material for gas uptake. Furthermore, we demonstrate that the new 3D COFs comprise both acidic and basic sites, and act as excellent bifunctional catalysts for one-pot cascade reactions. The new synthetic strategy provides not only a general and versatile approach to synthesize 3D COFs with sophisticated structures but also expands the potential applications of this promising class of porous materials.
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Qinying
authors.initials: Q
authors.lastname: Pan
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Yunchao
authors.initials: Y
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Guan
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Xue
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Qianrong
authors.initials: Q
authors.lastname: Fang
authors.affiliation: Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware , Newark, Delaware 19716, United States.
authors.forename: Yushan
authors.initials: Y
authors.lastname: Yan
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.|Normandie Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Marechal Juin, 14050 Caen, France.
authors.forename: Valentin
authors.initials: V
authors.lastname: Valtchev
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University , Changchun 130012, P. R. China.
authors.forename: Shilun
authors.initials: S
authors.lastname: Qiu