Weaving of organic threads into a crystalline covalent organic framework

Yuzhong Liu; Yanhang Ma; Yingbo Zhao; Xixi Sun; Felipe Gándara; Hiroyasu Furukawa; Zheng Liu; Hanyu Zhu; Chenhui Zhu; Kazutomo Suenaga; Peter Oleynikov; Ahmad S. Alshammari; Xiang Zhang; Osamu Terasaki; Omar M. Yaghi

doi:10.1126/science.aad4011

Weaving of organic threads into a crystalline covalent organic framework

Yuzhong Liu, Yanhang Ma, Yingbo Zhao, Xixi Sun, Felipe Gándara, Hiroyasu Furukawa, Zheng Liu, Hanyu Zhu, Chenhui Zhu, Kazutomo Suenaga, Peter Oleynikov, Ahmad S. Alshammari, Xiang Zhang, Osamu Terasaki, Omar M. Yaghi^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

482 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	365-369
Number of pages	5
Journal	Science
Volume	351
Issue number	6271
DOIs	https://doi.org/10.1126/science.aad4011
Publication status	Published - Jan 22 2016
Externally published	Yes

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title = "Weaving of organic threads into a crystalline covalent organic framework",

abstract = "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.",

author = "Yuzhong Liu and Yanhang Ma and Yingbo Zhao and Xixi Sun and Felipe G{\'a}ndara and Hiroyasu Furukawa and Zheng Liu and Hanyu Zhu and Chenhui Zhu and Kazutomo Suenaga and Peter Oleynikov and Alshammari, {Ahmad S.} and Xiang Zhang and Osamu Terasaki and Yaghi, {Omar M.}",

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doi = "10.1126/science.aad4011",

language = "English",

volume = "351",

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TY - JOUR

T1 - Weaving of organic threads into a crystalline covalent organic framework

AU - Liu, Yuzhong

AU - Ma, Yanhang

AU - Zhao, Yingbo

AU - Sun, Xixi

AU - Gándara, Felipe

AU - Furukawa, Hiroyasu

AU - Liu, Zheng

AU - Zhu, Hanyu

AU - Zhu, Chenhui

AU - Suenaga, Kazutomo

AU - Oleynikov, Peter

AU - Alshammari, Ahmad S.

AU - Zhang, Xiang

AU - Terasaki, Osamu

AU - Yaghi, Omar M.

PY - 2016/1/22

Y1 - 2016/1/22

N2 - 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.

AB - 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.

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DO - 10.1126/science.aad4011

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VL - 351

SP - 365

EP - 369

JO - Science

JF - Science

IS - 6271

ER -

Weaving of organic threads into a crystalline covalent organic framework

Abstract

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