Construction of Halogen-Bonded Organic Frameworks (XOFs) as Novel Efficient Iodinating Agents

• DOI: 10.1021/acsami.2c11598
• Publication Date: 2022-09-13T17:25:54Z
• Authors: Ning Xia; Jixin Han; Fei Xie; Guanfei Gong; Lu Wang; Jike Wang; Shigui Chen
• Keywords: 01 natural sciences; 0104 chemical sciences

The structural diversity and the various applications of organic frameworks have attracted much attention in recent years. Recently, halogen-bonded organic frameworks (XOFs) became a novel member of these materials, thereby facilitating the exploration of the interesting structures as well as functions. Here we present two types of [N···I+···N] connected XOFs (XOF-TPy and XOF-TPEB) with two tridentate ligands as building blocks. XOF-TPy and XOF-TPEB were characterized by 1H NMR, UV-vis, X-ray photoelectron spectroscopy (XPS), IR, SEM, and HR-TEM. Two-dimensional (2D) structural models were established based on powder X-ray diffraction (PXRD) data and theoretical simulations. Further experiment showed that these XOFs were excellent iodinating agents for the substituted arylboronic acids with either the electron-donating or electron-withdrawing groups upon heating without any catalyst. This research not only brings further understanding to the XOFs but also extends the applications of XOFs.