Open AccessThree-Dimensional Tetrathiafulvalene-Based Covalent Organic Frameworks for Tunable Electrical Conductivity
Author(s) -
Hui Li,
Jianhong Chang,
Shanshan Li,
Xinyu Guan,
Daohao Li,
Cuiyan Li,
Lingxue Tang,
Ming Xue,
Yushan Yan,
Valentin Valtchev,
Shilun Qiu,
Qianrong Fang
Publication year - 2019
Publication title -
journal of the american chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.115
H-Index - 612
eISSN - 1520-5126
pISSN - 0002-7863
DOI - 10.1021/jacs.9b06908
Subject(s) - tetrathiafulvalene , chemistry , covalent bond , electrical resistivity and conductivity , conductivity , nanotechnology , organic chemistry , molecule , electrical engineering , materials science , engineering
The functionalization of three-dimensional (3D) covalent organic frameworks (COFs) is essential to broaden their applications. However, the introduction of organic groups with electroactive abilities into 3D COFs is still very limited. Herein we report the first case of 3D tetrathiafulvalene-based COFs (3D-TTF-COFs) with non- or 2-fold interpenetrated pts opology and tunable electrochemical activity. The obtained COFs show high crystallinity, permanent porosity, and large specific surface area (up to 3000 m 2 /g). Furthermore, these TTF-based COFs are redox active to form organic salts that exhibit tunable electric conductivity (as high as 1.4 × 10 -2 S cm -1 at 120 °C) by iodine doping . These results open a way toward designing 3D electroactive COF materials and promote their applications in molecular electronics and energy storage.
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