Affiliation:
1. College of Chemistry & Pharmacy Northwest A&F University Xian Yang Shi, Yangling 712100 P. R. China
2. Hefei National Research Center for Physical Sciences at the Microscale Department of Chemistry University of Science and Technology of China Hefei Anhui 230026 P. R. China
3. Hangzhou Institute of Advanced Studies Zhejiang Normal University Hangzhou Zhejiang 310000 P. R. China
Abstract
AbstractA novel class of crystalline porous materials has been developed utilizing multilevel dynamic linkages, including covalent B−O, dative B←N and hydrogen bonds. Typically, boronic acids undergo in situ condensation to afford B3O3‐based units, which further extend to molecular complexes or chains via B←N bonds. The obtained superstructures are subsequently interconnected via hydrogen bonds and π–π interactions, producing crystalline porous organic frameworks (CPOFs). The CPOFs display excellent solution processability, allowing dissolution and subsequent crystallization to their original structures, independent of recrystallization conditions, possibly due to the diverse bond energies of the involved interactions. Significantly, the CPOFs can be synthesized on a gram‐scale using cost‐effective monomers. In addition, the numerous acidic sites endow the CPOFs with high NH3 capacity, surpassing most porous organic materials and commercial materials.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Foundation of Shaanxi Province