title: Thiophene-based covalent organic frameworks.
abstract: We report the synthesis and characterization of covalent organic frameworks (COFs) incorporating thiophene-based building blocks. We show that these are amenable to reticular synthesis, and that bent ditopic monomers, such as 2,5-thiophenediboronic acid, are defect-prone building blocks that are susceptible to synthetic variations during COF synthesis. The synthesis and characterization of an unusual charge transfer complex between thieno[3,2-b]thiophene-2,5-diboronic acid and tetracyanoquinodimethane enabled by the unique COF architecture is also presented. Together, these results delineate important synthetic advances toward the implementation of COFs in electronic devices.
authors.affiliation: Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
authors.forename: Guillaume H V
authors.initials: GH
authors.lastname: Bertrand
authors.forename: Vladimir K
authors.initials: VK
authors.lastname: Michaelis
authors.forename: Ta-Chung
authors.initials: TC
authors.lastname: Ong
authors.forename: Robert G
authors.initials: RG
authors.lastname: Griffin
authors.forename: Mircea
authors.initials: M
authors.lastname: Dincă
mesh_terms: D015394:Molecular Structure; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D011108:Polymers; D013876:Thiophenes