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Polyketone from CO and styrene: A useful copolymer catalyzed by a highly active and stable palladium catalyst with 5-nitro-1,10-phenanthroline ligand
Huang, J; Li, FB; Zou, J; Shi, XL; Yuan, GQ
2003-12-01
Source PublicationCHINESE JOURNAL OF POLYMER SCIENCE
ISSN0256-7679
Volume22Issue:1Pages:77-82
AbstractA novel coordinated complex [(5-nitrophen)Pd(CF3CO2)(2)] (5-nitrophen = 5 -nitro-1,10-phenanthroline) was first synthesized. By using XPS, IR, and 1H-NMR, its coordination unit was studied in comparison with those of complexes [(N-N)Pd(CH3CO2)(2)] and [(N-N)Pd(CF3CO2)(2)]. The H-2,H- 9 proton signals of H-1-NMR spectra of the complexes are excellent probes to monitor the evolution of the environment of the palladium atom. The state of anionic coordination was confirmed by the presence of IR absorption peaks of COO in complexes ([(N - N)Pd(CH3CO2)(2)] and [(N - N)Pd(CF3CO2)(2)]). Bonding energies of N-1s and Pd-3d5 obtained from XPS data testified to the strength of the N-Pd coordinating bond. The conclusion can be drawn by analyzing these data from IR, XPS and H-1-NMR that it is the unsymmetrical substitution of the 1,10-phenanthroline (phen) that makes the [(5-nitrophen)Pd(CF3CO2)(2)] more active. Experimental results showed that [(5-nitrophen)Pd(CF3CO2)(2)] exhibits much higher activity than [(bipy)Pd(CF3CO2)(2)] (1,1'-bipyridine = bipy) and [(phen)Pd(CF3CO2)(2)] under the same conditions.
KeywordPalladium Complex Unsymmetrical Substitution Copolymerization Styrene Carbon Monoxide Polyketone
Indexed BySCI
Language英语
WOS IDWOS:000188355900011
PublisherSPRINGER-VERLAG HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80404
Collection中国科学院化学研究所
Corresponding AuthorYuan, GQ
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
2.Hong Kong Polytech Univ, Dept Appl Biol & Chem Tech, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Huang, J,Li, FB,Zou, J,et al. Polyketone from CO and styrene: A useful copolymer catalyzed by a highly active and stable palladium catalyst with 5-nitro-1,10-phenanthroline ligand[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2003,22(1):77-82.
APA Huang, J,Li, FB,Zou, J,Shi, XL,&Yuan, GQ.(2003).Polyketone from CO and styrene: A useful copolymer catalyzed by a highly active and stable palladium catalyst with 5-nitro-1,10-phenanthroline ligand.CHINESE JOURNAL OF POLYMER SCIENCE,22(1),77-82.
MLA Huang, J,et al."Polyketone from CO and styrene: A useful copolymer catalyzed by a highly active and stable palladium catalyst with 5-nitro-1,10-phenanthroline ligand".CHINESE JOURNAL OF POLYMER SCIENCE 22.1(2003):77-82.
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