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Highly Stable Copper(I)–Thiacalix[4]arene‐Based Frameworks for Highly Efficient Catalysis of Click Reactions in Water
Author(s) -
Wang XueXia,
Yang Jin,
Xu Xianxiu,
Ma JianFang
Publication year - 2019
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.201903966
Subject(s) - catalysis , reusability , environmentally friendly , halogen , aqueous solution , chemistry , metal organic framework , copper , click chemistry , combinatorial chemistry , heterogeneous catalysis , chemical engineering , nanotechnology , organic chemistry , materials science , adsorption , computer science , ecology , alkyl , software , biology , programming language , engineering
Environmentally friendly metal–organic frameworks (MOFs) have gained considerable attention for their potential use as heterogeneous catalysts. Herein, two Cu I ‐based MOFs, namely, [Cu 4 Cl 4 L] ⋅ CH 3 OH ⋅ 1.5 H 2 O ( 1‐Cl ) and [Cu 4 Br 4 L] ⋅ DMF ⋅ 0.5 H 2 O ( 1‐Br ), were assembled with new functionalized thiacalix[4]arenes (L) and halogen anions X − (X=Cl and Br) under solvothermal conditions. Remarkably, catalysts 1‐Cl and 1‐Br exhibit great stability in aqueous solutions over a wide pH range. Significantly, MOFs 1‐Cl and 1‐Br , as recycled heterogeneous catalysts, are capable of highly efficient catalysis for click reactions in water. The MOF structures, especially the exposed active Cu I sites and 1D channels, play a key role in the improved catalytic activities. In particular, their catalytic activities in water are greatly superior to those in organic solvents or even in mixed solvents. This work proposes an attractive route for the design and self‐assembly of environmentally friendly MOFs with high catalytic activity and reusability in water.