Simultaneous construction of two linkages for the on-surface synthesis of imine–boroxine hybrid covalent organic frameworks. Issue 3 (12th December 2016)

• Record Type: Journal Article
• Authors: Yue, Jie-Yu; Mo, Yi-Ping; Li, Shu-Ying; Dong, Wei-Long; Chen, Ting; Wang, Dong
• Is Part Of: Chemical science. Volume 8:Issue 3(2017)
• Page Start: 2169
• Page End: 2174
• Publication Date: 2016-12-12
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6sc03590f
• Languages: English
• ISSNs: 2041-6520

Abstract

Abstract : The orthogonality between the Schiff base reaction and the boronic acid dehydration reaction is explored during the on-surface synthesis process. Abstract : The orthogonality between the Schiff base reaction and the boronic acid dehydration reaction is explored during the on-surface synthesis process. By activating the above two reactions in one-step and employing asymmetrical substituted monomers and the 3-fold symmetric monomer 1, 3, 5-tris(4-aminophenyl)benzene (TAPB), highly ordered imine–boroxine hybrid single-layered covalent organic frameworks (sCOFs) have been successfully constructed on HOPG by a gas–solid interface reaction method and characterized by scanning tunnelling microscopy (STM). In particular, the reaction between the meta -substituted monomer and TAPB generates sCOFB with a windmill structure, which is the first sCOF with surface chirality so far reported. The demonstration of the one-step synthesis of multiple linkages to form sCOFs can further enlarge the sCOF family and expand the design routes for functional 2D organic nanomaterials.