Non-Interpenetrated Single-Crystal Covalent Organic Frameworks

被引：62

作者：

Liang, Lin ^{[1
]}

Qiu, Yi ^{[2
]}

Wang, Wei David ^{[1
]}

Han, Jing ^{[1
]}

Luo, Yi ^{[3
]}

Yu, Wei ^{[1
]}

Yin, Guan-Lin ^{[1
]}

Wang, Zhi-Peng ^{[1
]}

Zhang, Lei ^{[2
]}

Ni, Jianwei ^{[1
]}

Niu, Jing ^{[1
]}

Sun, Junliang ^{[2
]}

Ma, Tianqiong ^{[1
,2
]}

Wang, Wei ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[3] Stockholm Univ, Dept Mat & Environm Chem, S-10691 Stockholm, Sweden

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2020年 / 59卷 / 41期

基金：

中国国家自然科学基金;

关键词：

3D COFs; matrix isolation; non-interpenetrated frameworks; single crystals; solid-state NMR; SOLID-STATE NMR; 2-DIMENSIONAL POLYMER; DYNAMICS; CONSTRUCTION; LUMINESCENCE; MECHANISM; ZEOLITE; BENZENE; DESIGN; SITES;

D O I：

10.1002/anie.202007230

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Growth of covalent organic frameworks (COFs) as single crystals is extremely challenging. Inaccessibility of open-structured single-crystal COFs prevents the exploration of structure-oriented applications. Herein we report for the first time a non-interpenetrated single-crystal COF, LZU-306, which possesses the open structure constructed exclusively via covalent assembly. With a high void volume of 80 %, LZU-306 was applied to investigate the intrinsic dynamics of reticulated tetraphenylethylene (TPE) as the individual aggregation-induced-emission moiety. Solid-state(2)H NMR investigation has determined that the rotation of benzene rings in TPE, being the freest among the reported cases, is as fast as 1.0x10(4) Hz at 203 K to 1.5x10(7) Hz at 293 K. This research not only explores a new paradigm for single-crystal growth of open frameworks, but also provides a unique matrix-isolation platform to reticulate functional moieties into a well-defined and isolated state.

引用

页码：17991 / 17995

页数：5

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