Weaving of organic threads into a crystalline covalent organic framework

被引：471

作者：

Liu, Yuzhong ^{[1
,3
]}

Ma, Yanhang ^{[2
]}

Zhao, Yingbo ^{[1
,3
]}

Sun, Xixi ^{[1
,3
]}

Gandara, Felipe ^{[4
]}

Furukawa, Hiroyasu ^{[1
,3
]}

Liu, Zheng ^{[5
]}

Zhu, Hanyu ^{[6
]}

Zhu, Chenhui ^{[7
]}

Suenaga, Kazutomo ^{[5
]}

Oleynikov, Peter ^{[2
]}

Alshammari, Ahmad S. ^{[8
]}

Zhang, Xiang ^{[6
,9
]}

Terasaki, Osamu ^{[2
,10
]}

Yaghi, Omar M. ^{[1
,3
,8
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Div Mat Sci, Berkeley, CA 94720 USA

[2] Stockholm Univ, Dept Mat & Environm Chem, SE-10691 Stockholm, Sweden

[3] Kavli Energy NanoSci Inst, Berkeley, CA USA

[4] CSIC, Dept New Architectures Mat Chem, Mat Sci Inst Madrid, Madrid 28049, Spain

[5] Natl Inst Adv Ind Sci & Technol, Nanomat Res Inst, Tsukuba, Ibaraki 3058565, Japan

[6] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr NSEC, Berkeley, CA 94720 USA

[7] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

[8] King Abdulaziz City Sci & Technol, Riyadh 11442, Saudi Arabia

[9] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA

[10] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China

来源：

SCIENCE | 2016年 / 351卷 / 6271期

基金：

美国国家科学基金会;

关键词：

COPPER(I);

D O I：

10.1126/science.aad4011

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A three-dimensional covalent organic framework (COF-505) constructed from helical organic threads, designed to be mutually weaving at regular intervals, has been synthesized by imine condensation reactions of aldehyde functionalized copper(I)-bisphenanthroline tetrafluoroborate, Cu(PDB)(2)(BF4), and benzidine (BZ). The copper centers are topologically independent of the weaving within the COF structure and serve as templates for bringing the threads into a woven pattern rather than the more commonly observed parallel arrangement. The copper(I) ions can be reversibly removed and added without loss of the COF structure, for which a tenfold increase in elasticity accompanies its demetalation. The threads in COF-505 have many degrees of freedom for enormous deviations to take place between them, throughout the material, without undoing the weaving of the overall structure.

引用

页码：365 / 369

页数：5

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