Synthesis, Postsynthetic Modifications, and Applications of the First Quinoxaline-Based Covalent Organic Framework

• DOI: 10.1021/acsami.1c08854
• Publication Date: 2021-07-28T18:12:04Z
• Authors: Valerie A. Kuehl; Phuoc H. H. Duong; Deana Sadrieva; Samrat A. Amin; Yuqi She; Katie D. Li-Oakey; Jeffery L. Yarger; Bruce A. Parkinson; John O. Hoberg
• Keywords: Quinoxaline; Nanoporous; Covalent organic framework; Nanopore; Chemical modification

We report a new synthetic protocol for preparing highly ordered two-dimensional nanoporous covalent organic frameworks (2D-COFs) based on quinoxaline backbone. The framework represents type of COF that enables postsynthetic modification by placing two different chemical functionalities within the nanopores including layer-to-layer cross-linking. also demonstrate membranes fabricated using this 2D-COF perform selective separations resulting in dramatic performance enhancement post