期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 317, 期 1-2, 页码 97-103出版社
ELSEVIER
DOI: 10.1016/j.molcata.2009.11.001
关键词
Gel; Hybrid material; Palladium; Coordination polymer; Supported catalysis
资金
- SEM
- NSF of China [20525310, 20773167, J0730420]
- 973 Program of China [2007CB815302]
A metal-organic gel (MOG) route to immobilised catalysts has been developed based on the reversibility of coordination bond formation in a Fe3+-carboxylate MOG. The ferric gel was rationally designed based on a bifunctional ligand, 5-1H-benzo[d]imidazole-1,3-dicarboxylic acid (L1), in which the imidazole N atom may further hind to a soft ion like Pd2+ more strongly Clue to the HSAB matching. Palladium(II) was successfully loaded in the gel to yield a supported coordination catalyst. Compared with its homogeneous counterparts, the immobilised gel catalyst exhibited significantly improved catalytic activity Under mild conditions as shown in Suzuki-Miyaura C-C coupling, and Could be reused for several times. (C) 2009 Elsevier B.V. All rights reserved.
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