Chinese Journal of Catalysis ›› 2015, Vol. 36 ›› Issue (9): 1560-1572.DOI: 10.1016/S1872-2067(15)60930-5

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A nanoparticulate polyacetylene-supported Pd(Ⅱ) catalyst combining the advantages of homogeneous and heterogeneous catalysts

Huan Lia,b, Guangxu Chena, Paul N. Duchesnec, Peng Zhangc, Yan Daia, Huayan Yanga, Binghui Wua, Shengjie Liua, Chaofa Xua, Nanfeng Zhenga   

  1. a State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
    b Institute of Crystalline Materials, Shanxi University, Taiyuan 030006, Shanxi, China;
    c Department of Chemistry, Dalhousie University, Halifax B3H 4R2, Canada
  • Received:2015-04-26 Revised:2015-06-05 Online:2015-08-28 Published:2015-09-26
  • Supported by:

    This work was supported by Ministry of Science and Technology of China (2011CB932403, 2015CB932303) and the National Natural Science Foundation of China (221420102001, 21131005, 21390390, 21333008).

Abstract:

A novel nanoparticulate polyacetylene-supported Pd(Ⅱ) catalyst (NP-Pd(Ⅱ)) for use in the aqueous Suzuki-Miyaura cross coupling reaction was successfully synthesized by simply treating an aqueous solution of PdCl42- with acetylene under ambient conditions. Electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and X-ray absorption spectroscopy were employed to characterize the NP-Pd(Ⅱ) structure in detail. These analyses demonstrated that the Pd atoms in the NP-Pd(Ⅱ) were present as Pd(Ⅱ) and were coordinated with both the Cl atoms and the C=C bonds of the polyacetylene. Both the homogeneous distribution of the Pd(Ⅱ) along the polyacetylene backbone and the aggregation of the NP-Pd(Ⅱ) in solution work in conjunction to make this material an ideal catalyst, combining the advantages of both homogeneous and heterogeneous catalysts.

Key words: Suzuki coupling, Acetylene, Palladium complex, Aqueous reaction