Weaving of organic threads into a crystalline covalent organic framework
2016 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 351, 365-369 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2016. Vol. 351, 365-369 p.
Research subject Inorganic Chemistry
IdentifiersURN: urn:nbn:se:su:diva-129172DOI: 10.1126/science.aad4011OAI: oai:DiVA.org:su-129172DiVA: diva2:920179