Constructing covalent organic frameworks in water via dynamic covalent bonding

IUCrJ

Rahul Kumar, R.¹  Banerjee, R.¹  Balaji Shinde, D.¹  Kandambeth, S.²  Biswal, B.P.³  Chaki Roy, N.³  Thote, J.³  Barike Aiyappa, H.³ 

[1] Academy of Scientific and Innovative Research, New Delhi 110020, India;Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India;Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, Maharashtra 411008, India

关键词: CRYSTALLINE POROUS POLYMERS;    HYDROTHERMAL;    POROUS ORGANIC SOLIDS;    HYDROGEN BONDING;    MICROPOROUS MATERIALS;   

DOI  :  10.1107/S2052252516013762

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The formation of keto-enamine based crystalline, porous polymers in water is investigated for the first time. Facile access to the Schiff base reaction in water has been exploited to synthesize stable porous structures using the principles of Dynamic Covalent Chemistry (DCC). Most credibly, the water-based Covalent Organic Frameworks (COFs) possess chemical as well as physical properties such as crystallinity, surface area and porosity, which is comparable to their solvothermal counterparts. The formation of COFs in water is further investigated by understanding the nature of the monomers formed using hydroxy and non-hydroxy analogues of the aldehyde. This synthetic route paves a new way to synthesize COFs using a viable, greener route by utilization of the DCC principles in conjunction with the keto–enol tautomerism to synthesize useful, stable and porous COFs in water.

【 授权许可】

CC BY