Ruthenium carbonyl clusters in faujasite cages: Synthesis and characterization

	Ruthenium carbonyl clusters in faujasite cages: Synthesis and characterization
	Shen, GC ; Liu, AM ; Ichikawa, M
刊名	inorganic chemistry
	1998-10-19
卷号	37 期号:21 页码:5497-5506
英文摘要	the synthesis of the intrafaujasite anchoring of ruthenium carbonyl clusters involves the adsorption of metal carbonyl species or metal ion exchange into faujasite cages followed by reductive carbonylation under an atmosphere of co and h-2. the characterization of the structure and properties of these samples was based on a multianalytical approach, including ft-ir, uv-vis, pxrd, and exafs spectroscopies, co/h-2 gas chemisorption, and (co)-c-13 isotopic exchange. from this study, several key points emerge. (a) [ru-3(co)(12)] clusters thermally diffused into dehydrated faujasite cages. (b) [ru-3(co)(12)] guests in na56y were thermally activated, in a hydrogen atmosphere, generating intrafaujasite [h4ru4(co)(12)]. (c) hexammineruthenium(iii) complexes in na56x and na56y underwent progressive thermal activation, in a co and h-2 atmosphere. the generation process was considered to occur through conversion of the intermediates [ru(nh3)(5)(co)](2+) and ru-1(co)(3) to [ru-6(co)(18)](2-). (d) a rapid (co)-c-13/ (co)-c-12 isotopic exchange was found to reversibly occur for [ru-6(co)(18)](2-)/na56x under h-2 coexistence. (e) internal and external confinement of ruthenium carbonyl clusters were compared. (f) oxidation fragmentation under an o-2 atmosphere and reductive regeneration under a co and h-2 atmosphere were found to reversibly occur for [ru-6(co)(18)](2-) guests. (g) intrafaujasite anchoring of ruthenium carbonyl clusters showed a strong interaction with the extraframework na+ alpha-cage cations, through involvement of the oxygen end of the bridging or equatorial terminal carbonyl ligands.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, inorganic & nuclear
研究领域[WOS]	chemistry
关键词[WOS]	metal-carbonyls ; cobalt clusters ; solid-state ; zeolites ; reactivity ; complexes ; hydrogen ; surface ; h4ru4(co)12 ; ru3(co)12
收录类别	SCI
语种	英语
WOS记录号	WOS:000076613700018
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138185]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Univ Toronto, Lash Miller Chem Labs, Dept Chem, 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
推荐引用方式 GB/T 7714	Shen, GC,Liu, AM,Ichikawa, M. Ruthenium carbonyl clusters in faujasite cages: Synthesis and characterization[J]. inorganic chemistry,1998,37(21):5497-5506.
APA	Shen, GC,Liu, AM,&Ichikawa, M.(1998).Ruthenium carbonyl clusters in faujasite cages: Synthesis and characterization.inorganic chemistry,37(21),5497-5506.
MLA	Shen, GC,et al."Ruthenium carbonyl clusters in faujasite cages: Synthesis and characterization".inorganic chemistry 37.21(1998):5497-5506.