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Iron Coordination to Hollow Microporous Metal‐Free Disalphen Networks: Heterogeneous Iron Catalysts for CO 2 Fixation to Cyclic Carbonates
Author(s) -
Cho Kyoungil,
Lee Sang Moon,
Kim Hae Jin,
Ko YoonJoo,
Kang Eun Joo,
Son Seung Uk
Publication year - 2020
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.201904344
Subject(s) - microporous material , catalysis , template , sonogashira coupling , chemical engineering , materials science , metal , etching (microfabrication) , inorganic chemistry , chemistry , nanotechnology , metallurgy , organic chemistry , palladium , composite material , layer (electronics) , engineering
This work shows that a hollow and microporous metal‐free N , N ′‐phenylenebis(salicylideneimine) (salphen) network (H‐MSN) can be engineered by Sonogashira coupling of [tetraiodo{di(Zn‐salphen)}] building blocks with 1,4‐diethynylbenzene in the presence of silica templates and by successive Zn and silica etching. Iron(III) ions could be incorporated into the H‐MSN to form hollow and microporous Fe–disalphen networks (H‐MFeSN) with enhanced microporosity and surface area. The H‐MFeSN showed efficient catalytic performance and recyclability in the CO 2 conversion to cyclic carbonates.