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Coordination‐Supported Imidazolate Networks: Water‐ and Heat‐Stable Mesoporous Polymers for Catalysis
Author(s) -
Zhang Pengfei,
Yang Shize,
Chisholm Matthew F.,
Jiang Xueguang,
Huang Caili,
Dai Sheng
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201702430
Subject(s) - imidazolate , catalysis , bifunctional , polymerization , monomer , mesoporous material , polymer , materials science , metal organic framework , chemical engineering , porosity , chemistry , polymer chemistry , organic chemistry , adsorption , engineering
The poor water stability of most porous coordination polymers (PCPs) or metal‐organic frameworks (MOFs) is widely recognized as a barrier hampering their practical applications. Here, a facile and scalable route to prepare metal‐containing polymers with a good stability in boiling water (100 °C, 24 h) and air (up to 390 °C) is presented. The bifunctional 1‐vinylimidazole (VIm) with a coordinating site and a polymerizable organic group is introduced as the building block. This core strategy includes the synthesis of a rigid monomer with four VIm branches through a coordination process at room temperature, followed by a radical polymerization. We refer to this material as coordination‐supported imidazolate networks (CINs). Interestingly, CINs are composed of rich mesopores from 2–15 nm, as characterized by low‐energy (60 kV) STEM‐HAADF images. In particular, the stable CINs illustrate a high turnover frequency (TOF) of 779 h −1 in the catalytic oxidation of phenol with H 2 O as the green solvent.