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Halogen‐Bonded Organic Framework (XOF) Based on Iodonium‐Bridged N⋅⋅⋅I + ⋅⋅⋅N Interactions: A Type of Diphase Periodic Organic Network
Author(s) -
Gong Guanfei,
Lv Siheng,
Han Jixin,
Xie Fei,
Li Qian,
Xia Ning,
Zeng Wei,
Chen Yi,
Wang Lu,
Wang Jike,
Chen Shigui
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202102448
Subject(s) - x ray photoelectron spectroscopy , small angle x ray scattering , selected area diffraction , powder diffraction , halogen , crystallography , materials science , high resolution transmission electron microscopy , electron diffraction , diffraction , synchrotron , scattering , spectroscopy , transmission electron microscopy , nanotechnology , chemistry , chemical engineering , alkyl , organic chemistry , optics , physics , quantum mechanics , engineering
Due to the fascinating structures and wide applications, porous materials with open frameworks have attracted more and more attentions. Herein, a novel two‐dimensional (2D) halogen‐bonded organic framework ( XOF–TPPE ) was successfully designed and fabricated by iodonium‐bridged N⋅⋅⋅I + ⋅⋅⋅N interactions between pyridyl groups and I + for the first time. The formation of XOF–TPPE and its linear analogue was monitored by 1 H NMR, UV–Vis, X‐ray photoelectron spectroscopy (XPS), IR, SEM, TEM, HRTEM and selected‐area electron diffraction (SAED). The structural model of XOF–TPPE was established based on powder X‐ray diffraction (PXRD) data and theoretical simulations. Significantly, synchrotron small‐angle X‐ray scattering (SAXS), DLS and UV–Vis spectroscopy experiments suggested that XOF–TPPE still maintains a stable 2D framework structure in solutions. This research opens up a novel avenue for the development of organic frameworks materials, and may bring new promising applications for the field of porous materials.