title: Constructing covalent organic frameworks in waterviadynamic 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.
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory , Dr Homi Bhabha Road, Pune, Maharashtra 411008, India.
authors.forename: Jayshri
authors.initials: J
authors.lastname: Thote
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, Maharashtra 411008, India; Academy of Scientific and Innovative Research, New Delhi 110020, India.
authors.forename: Harshitha
authors.initials: H
authors.lastname: Barike Aiyappa
authors.affiliation: Indian Institute of Science Education and Research , Pune, Maharashtra 411008, India.
authors.forename: Raya
authors.initials: R
authors.lastname: Rahul Kumar
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, Maharashtra 411008, India; Academy of Scientific and Innovative Research, New Delhi 110020, India.
authors.forename: Sharath
authors.initials: S
authors.lastname: Kandambeth
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, Maharashtra 411008, India; Academy of Scientific and Innovative Research, New Delhi 110020, India.
authors.forename: Bishnu P
authors.initials: BP
authors.lastname: Biswal
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory , Dr Homi Bhabha Road, Pune, Maharashtra 411008, India.
authors.forename: Digambar
authors.initials: D
authors.lastname: Balaji Shinde
authors.affiliation: Centre for Research in Nanotechnology and Science, Indian Institute of Technology Bombay , Mumbai 400076, India.
authors.forename: Neha
authors.initials: N
authors.lastname: Chaki Roy
authors.affiliation: Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune, Maharashtra 411008, India; Academy of Scientific and Innovative Research, New Delhi 110020, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Banerjee
keywords: crystalline porous polymers; hydrogen bonding; hydrothermal; microporous materials; porous organic solids