title: A tetrathiafulvalene-based electroactive covalent organic framework.
abstract: Two-dimensional covalent organic frameworks (2D COFs) provide a unique platform for the molecular design of electronic and optoelectronic materials. Here, the synthesis and characterization of an electroactive COF containing the well-known tetrathiafulvalene (TTF) unit is reported. The TTF-COF crystallizes into 2D sheets with an eclipsed AA stacking motif, and shows high thermal stability and permanent porosity. The presence of TTF units endows the TTF-COF with electron-donating ability, which is characterized by cyclic voltammetry. In addition, the open frameworks of TTF-COF are amenable to doping with electron acceptors (e.g., iodine), and the conductivity of TTF-COF bulk samples can be improved by doping. Our results open up a reliable route for the preparation of well-ordered conjugated TTF polymers, which hold great potential for applications in fields from molecular electronics to energy storage.
authors.affiliation: Key Laboratory of Biomedical Polymers (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 (P.R. China).
authors.forename: Huimin
authors.initials: H
authors.lastname: Ding
authors.forename: Yonghai
authors.initials: Y
authors.lastname: Li
authors.forename: Hui
authors.initials: H
authors.lastname: Hu
authors.forename: Yimeng
authors.initials: Y
authors.lastname: Sun
authors.forename: Jianguo
authors.initials: J
authors.lastname: Wang
authors.forename: Caixing
authors.initials: C
authors.lastname: Wang
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: Guanxin
authors.initials: G
authors.lastname: Zhang
authors.forename: Baoshan
authors.initials: B
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Deqing
authors.initials: D
authors.lastname: Zhang
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry; D004563:Electrochemistry; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008968:Molecular Conformation; D014961:X-Ray Diffraction
chemical_list: D001547:Benzaldehydes; D006571:Heterocyclic Compounds; C063887:tetrathiafulvalene
keywords: conducting materials; covalent organic frameworks; electron donor; microporous materials; tetrathiafulvalene