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Comprehensive structural and spectroscopic study of intrazeolite anchoring of ruthenium carbonyl clusters
Shen, GC; Liu, AM; Ichikawa, M
刊名JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS
1998-05-07
94期:9页:1353-1362
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]NAY ZEOLITE CAGES ; METAL-CARBONYLS ; SOLID-STATE ; CHEMISTRY ; REACTIVITY ; SURFACE ; RU3(CO)12 ; COMPLEXES ; HYDROGEN ; LIGAND
英文摘要[Ru-3(CO)(12)] guests in Na56Y were thermally activated from 298 to 363 K, in a hydrogen atmosphere, generating intrazeolitic [H4Ru4(CO)(12)]. Hexaammineruthenium(III) complexes in Na56X have been thermally activated progressively from 298 to 393 K, in CO and H-2 atmospheres. The generation process is via conversion of the intermediate [Ru(NK3)(5)(CO)](2+), Ru-1(CO)(3) to [Ru-6(CO)(18)](2-). The characterization of the structure and properties of these samples used a multi-analytical approach based on FTIR, UV-VIS, EXAFS spectroscopies and CO and H-2 gas chemiscrption. The research encompassed several key points as follows: (i) kinetics of the intrazeolitic diffusion of [Ru-3(CO)(12)] clusters; (ii) oxidation fragmentation under O-2 atmosphere and reductive regeneration under CO and H-2 chemisorption with temperature-programmed heating for the intrazeolite anchoring of [Ru-6(CO)(18)](2-); (iii) internal vs. external confinement of ruthenium carbonyl clusters; (iv) intrazeolite anchoring of ruthenium carbonyl clusters shows a strong reaction with the extraframework Na+ alpha-cage cations, through involvement of the oxygen end of the bridging or equatorial terminal carbonyl ligands; (v) comparison of orbitally degenerate ground-state for free Ru carbonyl clusters vs. the intrazeolitic anchoring site provides a theoretical indication of the symmetry distortion.
语种英语
WOS记录号WOS:000073580000029
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138177
专题中国科学院大连化学物理研究所
作者单位1.Univ Toronto, Dept Chem, Lash Miller Chem Labs, Toronto, ON M5S 3H6, Canada
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 060, Japan
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Shen, GC,Liu, AM,Ichikawa, M. Comprehensive structural and spectroscopic study of intrazeolite anchoring of ruthenium carbonyl clusters[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS,1998,94(9):1353-1362.
APA Shen, GC,Liu, AM,&Ichikawa, M.(1998).Comprehensive structural and spectroscopic study of intrazeolite anchoring of ruthenium carbonyl clusters.JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS,94(9),1353-1362.
MLA Shen, GC,et al."Comprehensive structural and spectroscopic study of intrazeolite anchoring of ruthenium carbonyl clusters".JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS 94.9(1998):1353-1362.
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