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Substituted Benzoxazole and Catechol Cocrystals as an Adsorbent for CO2 Capture: Synthesis and Mechanistic Studies

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journal contribution
posted on 02.08.2017, 00:00 authored by Dharmalingam Sivanesan, Min Hye Youn, Ki Tae Park, Hak Joo Kim, Soon Kwan Jeong
We report the synthesis of cocrystals of a substituted benzoxazole and catechol from a primary amine and 3,5-di-tert-butylbenzoquinone. Fourier transform infrared and NMR spectroscopy studies revealed that cocrystals 2 could be synthesized in excellent yield from 1 and 3,5-di-tert-butylbenzoquinone. Introduction of an amine into the cocrystal structure enhanced the CO2 adsorption capacity of the cocrystals at room temperature from 15.69 to 44.21 mg/g. Our results indicated the ability to use cocrystals for CO2 capture and to easily modify them to enhance their CO2 adsorption capacity.