Layered Zn2[Co(CN)6](CH3COO) double metal cyanide: a two-dimensional DMC phase with excellent catalytic performance

被引:26
|
作者
Marquez, Carlos [1 ]
Simonov, Arkadiy [2 ]
Wharmby, Michael T. [3 ]
Van Goethem, Cedric [1 ]
Vankelecom, Ivo [1 ]
Bueken, Bart [1 ]
Krajnc, Andraz [4 ]
Mali, Gregor [4 ]
De Vos, Dirk [1 ]
De Baerdemaeker, Trees [1 ]
机构
[1] Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Leuven, Belgium
[2] Univ Oxford, Inorgan Chem Lab, South Parks Rd, Oxford OX1 3QR, England
[3] Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany
[4] Natl Inst Chem, Dept Inorgan Chem & Technol, Hajdrihova 19, Ljubljana 1001, Slovenia
关键词
RING-OPENING POLYMERIZATIONS; HIGHLY-ACTIVE CATALYSTS; PRUSSIAN BLUE ANALOGS; PROPYLENE-OXIDE; ORGANIC FRAMEWORK; HETEROGENEOUS CATALYSTS; POWDER DIFFRACTION; DOUBLE HYDROXIDES; INDUCTION PERIOD; HYDROAMINATION;
D O I
10.1039/c9sc00527g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Double metal cyanides (DMCs) are well known, industrially applied catalysts for ring opening polymerization reactions. In recent years, they have been studied for a variety of catalytic reactions, as well as other applications, such as energy storage and Cs sorption. Herein, a new, layered DMC phase (L-DMC), Zn-2[Co(CN)(6)](CH3COO)center dot 4H(2)O, was synthesized. The structure, which crystallizes in the monoclinic space group P2(1)/m, consists of positively charged {Zn2Co(CN)(6)}(+) DMC layers linked through acetate groups and presents a new layered structure to the family of double metal cyanides. L-DMC proved to be a reusable and stable catalyst that exhibited a higher activity than the benchmark DMC catalyst in two important applications: hydroamination of phenylacetylene with 4-isopropylaniline and polymerization of 1,2-epoxyhexane.
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页码:4868 / 4875
页数:8
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