Palladium-Nanoparticle-Linked Organic Frameworks: Heterogeneous Recyclable Catalysts in Aqueous Medium

被引：15

作者：

Prakash, Sadasivan P. ^{[1
,2
]}

Gopidas, Karical R. ^{[1
,2
]}

机构：

[1] CSIR, Natl Inst Interdisciplinary Sci & Technol, Chem Sci & Technol Div, Trivandrum 695019, Kerala, India

[2] Acad Sci & Innovat Res AcSIR, New Delhi 110001, India

来源：

CHEMCATCHEM | 2014年 / 6卷 / 06期

关键词：

biradicals; C-C coupling; nanoparticles; palladium; supported catalysts; CROSS-COUPLING REACTIONS; ELECTROCHEMICAL REDUCTION; METAL NANOPARTICLES; DIAZONIUM SALTS; OXIDATIVE-ADDITION; REUSABLE CATALYSTS; PD-NANOPARTICLES; CARBON SURFACES; SUZUKI REACTION; COVALENT BOND;

D O I：

10.1002/cctc.201400060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

4,4'-Biphenylene-bisdiazonium tetrafluoroborate and a palladium salt were reduced simultaneously to result in the formation of palladium atoms and 4,4'-biphenylene biradicals. The palladium atoms underwent clustering forming palladium nanoparticles, whereas the 4,4'-biphenylene biradicals underwent rapid addition reactions to other radicals and also to nanoparticle surfaces. The resulting product contains palladium nanoparticles covalently linked to an organic framework (PNOF). The effects of different reaction conditions upon metal content as well as on the morphology of the PNOF were studied. The PNOF structure was probed by different experimental techniques. The PNOFs were evaluated as heterogeneous recyclable catalyst in aqueous medium for reduction of 4-nitrophenol and Suzuki coupling reactions. The catalyst exhibited high reactivity even in Suzuki couplings of aryl chlorides.

引用

页码：1641 / 1651

页数：11

共 85 条

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