Designed synthesis of stable light-emitting two-dimensional sp(2) carbon-conjugated covalent organic frameworks.
Designed synthesis of stable light-emitting two-dimensional sp(2) carbon-conjugated covalent organic frameworks.
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DOI：
10.1038/s41467-018-06719-8
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发表时间：
2018-10-08
影响因子：
16.6
通讯作者：
Jiang D
中科院分区：
文献类型：
--
作者：
Jin E;Li J;Geng K;Jiang Q;Xu H;Xu Q;Jiang D
共价有机框架使有机发色团的拓扑连接成为π晶格，这使得它们对于创建可用于初级和高阶结构的发光聚合物具有吸引力。然而，由于化学键的存在，共价有机骨架要么不稳定，要么发光能力差，这使得稳定发光骨架的实际合成具有挑战性。在这里，我们报道了sp2碳共轭框架的设计合成，结合了稳定性和发光活性。C=C键在拓扑上将芘结和芳烯炔连接成二维的所有sp2碳晶格，这些碳晶格被设计成沿x和y方向π共轭，并形成层状结构，形成异常稳定的框架。所得到的框架能够通过连接体调节带隙和发射，在各种条件下都具有高发光性，并且可以剥离以产生明亮的纳米片。这些结果为设计坚固的光功能材料提供了一个基于sp2碳框架的平台。有机发色团的拓扑连接是设计发光共价有机骨架的一种有吸引力的方法，但稳定发光骨架的合成仍然具有挑战性。在这里，作者报告了sp2碳共轭框架的设计合成，结合了稳定性和发光活性
Covalent organic frameworks enable the topological connection of organic chromophores into π lattices, making them attractive for creating light-emitting polymers that are predesignable for both the primary- and high-order structures. However, owing to linkages, covalent organic frameworks are either unstable or poor luminescent, leaving the practical synthesis of stable light-emitting frameworks challenging. Here, we report the designed synthesis of sp2 carbon-conjugated frameworks that combine stability with light-emitting activity. The C=C linkages topologically connect pyrene knots and arylyenevinylene linkers into two-dimensional all sp2 carbon lattices that are designed to be π conjugated along both the x and y directions and develop layer structures, creating exceptionally stable frameworks. The resulting frameworks are capable of tuning band gap and emission by the linkers, are highly luminescent under various conditions and can be exfoliated to produce brilliant nanosheets. These results suggest a platform based on sp2 carbon frameworks for designing robust photofunctional materials. Topological connection of organic chromophores is an attractive way to design light-emitting covalent organic frameworks but the synthesis of stable light-emitting frameworks remains challenging. Here the authors report the designed synthesis of sp2 carbon conjugated frameworks that combine stability with light-emitting activity
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影响因子：
15
作者：
Crowe, Jonathan W.;Baldwin, Luke A.;McGrier, Psaras L.
通讯作者：
McGrier, Psaras L.
影响因子：
4.9
作者：
Li, Yupeng;Li, Feng;Ma, Yuguang
通讯作者：
Ma, Yuguang
影响因子：
15
作者：
Ding, San-Yuan;Dong, Ming;Wang, Wei
通讯作者：
Wang, Wei
影响因子：
56.9
作者：
Jin, Enquan;Asada, Mizue;Jiang, Donglin
通讯作者：
Jiang, Donglin
探索共价有机框架的应用：动态核极化的自由基均质网状结构
影响因子：
15
作者：
Cao W;Wang WD;Xu HS;Sergeyev IV;Struppe J;Wang X;Mentink-Vigier F;Gan Z;Xiao MX;Wang LY;Chen GP;Ding SY;Bai S;Wang W
通讯作者：
Wang W