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题名: A simple, recyclable, and self-assembled palladium(II)-alkyl Schiff base complex for Suzuki coupling reaction: chain length dependence and heterogeneous catalysis
作者: Liu, Hui1, 2; Xue, Xiaoxia1; Li, Tiesheng1; Wang, Jiong1; Xu, Wenjian1; Liu, Minghua3; Chen, Penglei3; Wu, Yangjie1
刊名: RSC ADVANCES
发表日期: 2016
卷: 6, 期:88, 页:84815-84824
收录类别: SCI
英文摘要: A series of self-assembled Pd(II)-alkyl Schiff base complexes [PdLn-Si] (Cat. 1-5) [n = 0, 1, 3, 6, 10] having different chain lengths were synthesized and characterized by water drop contact angle (WDCA), atomic force microscopy (AFM), ultraviolet-visible spectroscopy (UV-Vis), Raman spectroscopy (RS), and X-ray photoelectron spectroscopy (XPS) analyses. Catalyst 3 with a moderate alkyl chain exhibited highly active and recyclable properties for the Suzuki coupling reaction, which indicated that the length of the alkyl chain significantly affects the catalytic activity due to a suitable orientation and electron-rich environment which make it easy to form palladium-ligand bonds, stabilize the active species and facilitate the insertion of this metal into the Ar-X bond. The catalytic mechanism was also investigated, in which a three-phase test indicated that the self-assembled complexes act as true heterogeneous catalysts. The catalytic process was analyzed by RS and XPS, indicating it is a surface catalysis process.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35427
Appears in Collections:胶体、界面与化学热力学实验室_期刊论文

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作者单位: 1.Zhengzhou Univ, Coll Chem & Mol Engn, Key Lab Chem Biol & Organ Chem Henan Prov, Key Lab Nanoinformat Mat Zhengzhou, Zhengzhou 450001, Peoples R China
2.Zhengzhou Normal Univ, Sch Chem & Chem Engn, Zhengzhou 450044, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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