TY - JOUR
T1 - Two-dimensional tetrathiafulvalene covalent organic frameworks
T2 - Towards latticed conductive organic salts
AU - Jin, Shangbin
AU - Sakurai, Tsuneaki
AU - Kowalczyk, Tim
AU - Dalapati, Sasanka
AU - Xu, Fei
AU - Wei, Hao
AU - Chen, Xiong
AU - Gao, Jia
AU - Seki, Shu
AU - Irle, Stephan
AU - Jiang, Donglin
N1 - Publisher Copyright:
©2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2014/11/3
Y1 - 2014/11/3
N2 - The construction of a new class of covalent TTF lattice by integrating TTF units into two-dimensional covalent organic frameworks (2D COFs) is reported. We explored a general strategy based on the C2+C2 topological diagram and applied to the synthesis of microporous and mesoporous TTF COFs. Structural resolutions revealed that both COFs consist of layered lattices with periodic TTF columns and tetragonal open nanochannels. The TTF columns offer predesigned pathways for high-rate hole transport, predominate the HOMO and LUMO levels of the COFs, and are redox active to form organic salts that exhibit enhanced electric conductivity by several orders of magnitude. On the other hand, the linkers between the TTF units play a vital role in determining the carrier mobility and conductivity through the perturbation of 2D sheet conformation and interlayer distance. These results open a way towards designing a new type of TTF materials with stable and predesignable lattice structures for functional exploration.
AB - The construction of a new class of covalent TTF lattice by integrating TTF units into two-dimensional covalent organic frameworks (2D COFs) is reported. We explored a general strategy based on the C2+C2 topological diagram and applied to the synthesis of microporous and mesoporous TTF COFs. Structural resolutions revealed that both COFs consist of layered lattices with periodic TTF columns and tetragonal open nanochannels. The TTF columns offer predesigned pathways for high-rate hole transport, predominate the HOMO and LUMO levels of the COFs, and are redox active to form organic salts that exhibit enhanced electric conductivity by several orders of magnitude. On the other hand, the linkers between the TTF units play a vital role in determining the carrier mobility and conductivity through the perturbation of 2D sheet conformation and interlayer distance. These results open a way towards designing a new type of TTF materials with stable and predesignable lattice structures for functional exploration.
KW - Carrier mobility
KW - Conducting materials
KW - Covalent organic frameworks
KW - Synthetic methods
KW - Tetrathiafulvalene
UR - http://www.scopus.com/inward/record.url?scp=84915784313&partnerID=8YFLogxK
U2 - 10.1002/chem.201402844
DO - 10.1002/chem.201402844
M3 - Article
AN - SCOPUS:84915784313
SN - 0947-6539
VL - 20
SP - 14608
EP - 14613
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 45
ER -