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Constructing covalent organic frameworks in water via dynamic covalent bonding.

ABSTRACT: 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.

SUBMITTER: Thote J

PROVIDER: S-EPMC5094442 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Constructing covalent organic frameworks in water <i>via</i> dynamic covalent bonding.

Thote Jayshri J Barike Aiyappa Harshitha H Rahul Kumar Raya R Kandambeth Sharath S Biswal Bishnu P BP Balaji Shinde Digambar D Chaki Roy Neha N Banerjee Rahul R

IUCrJ 20160914 Pt 6

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 ...[more]

PMID: 27840679

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