Covalent organic frameworks from a monomer with reduced symmetry: polymorphism and Sierpiński triangles. Issue 90 (28th October 2019)

• Record Type: Journal Article
• Authors: Cui, Daling; Fang, Yuan; MacLean, Oliver; Perepichka, Dmitrii F.; Rosei, Federico; Clair, Sylvain
• Is Part Of: Chemical communications. Volume 55:Issue 90(2019)
• Page Start: 13586
• Page End: 13589
• Publication Date: 2019-10-28
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc05674b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Polymorphism in surface-supported covalent organic frameworks grown from a low-symmetry precursor. Abstract : We report on the synthesis of a covalent organic framework based on the low-symmetry 1, 3-benzenediboronic acid precursor. Two distinct polymorphs are obtained, a honeycomb network and Sierpiński triangles, as elucidated by scanning tunneling microscopy. Control over polymorph formation was achieved by varying the precursor concentration for on-surface synthesis.