On July 6th, the US magazine Science published the paper "Single-crystal x-ray diffraction structures of covalent organic frameworks". It is the latest achievement in covalent organic framework materials made by Lanzhou University, Peking University and the University of California at Berkeley. For the first time this research has realized the growth and structural analysis of large-size single crystals of covalent organic framework materials, putting the research of "covalently assembled ordered structures" to a new level.
After eight years of unremitting efforts, Dr. Ma Tianqiong of College of Chemistry and Chemical Engineering of LZU, also the member of State Key Laboratory of Functional Organic Molecular Chemistry, proposed a method to control the growth of large-size single crystal COFs. Besides, he has also synthesized four large-sized single crystals of three-dimensional imine-type COFs for the first time, including COF-300, COF-303, LZU-79 and LZU-111.
The research not only breaks the long-term bottleneck of covalent organic framework materials development, but also provides a new example for the theoretical and applied research of dynamic covalent chemistry. (The original link is available at http://science.sciencemag.org/content/361/6397/48.full) Dr. Ma Tianqiong is the first author of the article, and Prof. Wang Wei, researcher Sun Junliang of Peking University and Prof. Omar Yaghi of the University of California at Berkeley are its co-authors, with Lanzhou University as the first communication unit. Prof. Jorge A. R. Navarro of the University of De Granada in Spain commented on the work with his paper “The dynamic art of growing COF crystals” (click http://science.sciencemag.Org/content/361/6397/35)
(Translated by Yang fan; proofread by Ren Yanyang; edited by Zhang Yuyuan)
