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Synthesis And Characterization Of Mixed Metal Methylidyne Clusters Of Ruthenium And Osmium
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Book Synopsis Synthesis and Characterization of Mixed-metal Methylidyne Clusters of Ruthenium and Osmium by : Christian C. O. Onyeso
Download or read book Synthesis and Characterization of Mixed-metal Methylidyne Clusters of Ruthenium and Osmium written by Christian C. O. Onyeso and published by . This book was released on 1986 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis and Chemistry of a Series of Ruthenium and Osmium Mixed Metal Clusters by : R. M. Sorrell
Download or read book The Synthesis and Chemistry of a Series of Ruthenium and Osmium Mixed Metal Clusters written by R. M. Sorrell and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Mixed-Metal Clusters of Osmium and Rhodium by : Po-Kwan Jasmine Lau
Download or read book The Chemistry of Mixed-Metal Clusters of Osmium and Rhodium written by Po-Kwan Jasmine Lau and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Chemistry of Mixed-metal Clusters of Osmium and Rhodium" by Po-kwan, Jasmine, Lau, 劉寶君, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled THE CHEMISTRY OF MIXED-METAL CLUSTERS OF OSMIUM AND RHODIUM Submitted by LAU PO KWAN JASMINE for the degree of Doctor of Philosophy at The University of Hong Kong in December 2005 The general background of metal clusters, the chemistry of osmium-rhodium mixed-metal clusters, and their potential catalytic applications are reviewed. The work in the synthesis, characterizations, and reactivity studies of different series of osmium-rhodium mixed-metal clusters help us to understand the properties and reactivities of new clusters as compared to the bulk metal surface. 1 1 1 A novel face-capping mode of toluene was observed in [Os Rh (μ -η η η - 3 4 3 C H CH )(CO) ] 1. Cluster 1, together with [Os Rh(-H)(η -C H CH )(CO) ] 2 6 5 3 13 4 6 5 3 12 and a known compound [Os Rh (η -C H CH )(-CO)(CO) ], were obtained from 5 2 6 5 3 16 the reaction of [Os Rh(μ-H) (CO) ] with toluene in the presence of an excess 3 3 12amount of 4-vinylphenol. The reaction of [Os Rh(-H) (CO) ] with an excess 3 3 12 amount of 4-vinylphenol (as a hydride acceptor) in refluxing m-xylene, chlorobenzene, or benzene yielded three new clusters [Os Rh {η -C H (CH ) } 5 2 6 4 3 2 6 6 (-CO)(CO) ] 3, [Os Rh (η -C H Cl)(-CO)(CO) ] 4, and [Os Rh (η -C H ) 16 5 2 6 5 16 5 2 6 6 (-CO)(CO) ] 5, respectively. 16 The hydrogenation of [Os Rh (η -C H CH )(-CO)(CO)] with 5 2 6 5 3 16 [Os (-H) (CO) ] resulted in moderate yields of two hydrogen-rich compounds: 3 2 10 [Os Rh (-H) (CO) ] 6 and [Os Rh Cl(-H) (CO) ] 7. The reaction of 7 3 11 23 5 3 8 18 [Os Rh (η -C H CH )(-CO)(CO) ] with hydrogen yielded a new cluster 5 2 6 5 3 16 compound, [Os Rh(-H) (CO) ] 8. A deuterium exchange experiment was 5 5 18 performed on 6, and 7. Both the compounds proved to be able to exchange the H atom with D in the presence of D SO, and the absence of the hydride signal in the 2 4 H NMR spectrum is consistent with this. Therefore, clusters 6 and 7 may serve as appropriate new hydrogen storage models. A detailed discussion of the chemistry of anionic osmium-rhodium mixed-metal clusters with Au cationic fragments using [Au(PPh )Cl] and [(AuCl) L-L], where L 3 2 = dppe (bis(diphenylphosphino)ethane) or dppp (bis(diphenylphosphino)propane), is presented. Two mono-anionic osmium-rhodium mixed-metal clusters [PPN][Os Rh(μ-CO)(CO) ] 9 and [PPN][Os Rh (μ-CO) (CO) ] 10 were prepared 6 19 9 3 2 26 by the thermolysis of [Os Rh(μ-H) (CO) ]. Electrochemistry studies on 10 showed 3 3 12 four successive redox couples, and revealed a novel electron reservoir property. Treatment of 9 with two equivalent of [Au(PPh)Cl] gave compounds [Os Rh Au(CO) (PPh )] 11, and [Os Au (CO) (PPh ) ][Os Rh(μ-CO)(CO) ] 12. 4 3 18 3 5 3 15 3 3 6 19 Both compounds successfully demonstrated the introduction of the Au(PR ) units 3into transition-metal clusters. Two linked clusters [{Os RhAu(μ-CO)(CO) } (dppp)] 6 19 2 13 and [{Os RhAu(μ-CO)(CO) } (dppe)] 14 were prepared by the reaction of 9 6 19 2 with two equivalent [(AuCl) dppp] and [(AuCl) dppe], respectively. 2 2 The synthesis and characterization of linked cluster [{Os (CO) (μ -H)} 3 10 2 2 {μ,μ -NC H C H N}] 15 from the reaction of [Os Rh(μ-H) (CO) ] with aniline in 2 2 6 4 6 4 3 3 12 the presence of an excess amount of 4-vinyl phenol
Book Synopsis Synthesis, Characterization, and Kinetics of Mixed-metal Iron-ruthenium Alkylidyne Clusters by : Derrick Scott Parfitt
Download or read book Synthesis, Characterization, and Kinetics of Mixed-metal Iron-ruthenium Alkylidyne Clusters written by Derrick Scott Parfitt and published by . This book was released on 1991 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Synthesis, Characterization, and Reactivity of Heterobimetallic Gold Hydride Cluster Complexes of Ruthenium, Osmium, Rhodium, and Iridium by : Bruce Dean Alexander
Download or read book The Synthesis, Characterization, and Reactivity of Heterobimetallic Gold Hydride Cluster Complexes of Ruthenium, Osmium, Rhodium, and Iridium written by Bruce Dean Alexander and published by . This book was released on 1988 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Derivatives of Tetranuclear Mixed-metal Clusters of Ruthenium and Iridium by : Aapo Härkönen
Download or read book Synthesis and Characterization of Derivatives of Tetranuclear Mixed-metal Clusters of Ruthenium and Iridium written by Aapo Härkönen and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thougtit that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 31 (thesis year 1986) a total of 11 ,480 theses titles trom 24 Canadian and 182 United States universities. We are sure that this broader base tor these titles reported will greatly enhance the value ot this important annual reterence work. While Volume 31 reports theses submitted in 1986, on occasion, certain univer sities do re port theses submitted in previousyears but not reported at the time.
Book Synopsis Synthesis and Catalytic Studies of Transition Metal Clusters of Ruthenium and Osmium by : Thomas Alan Wolfe
Download or read book Synthesis and Catalytic Studies of Transition Metal Clusters of Ruthenium and Osmium written by Thomas Alan Wolfe and published by . This book was released on 1989 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model Chemistry on Metal Surfaces by : Yun Chi
Download or read book Model Chemistry on Metal Surfaces written by Yun Chi and published by . This book was released on 1986 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Mixed-metal Clusters of Osmium and Rhodium by : Po-kwan Lau (Jasmine)
Download or read book The Chemistry of Mixed-metal Clusters of Osmium and Rhodium written by Po-kwan Lau (Jasmine) and published by . This book was released on 2005 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Mixed Transition Metal Clusters of Osmium and Rhenium Via Metal Hydride Coupling Reactions by : Gregory Alan Pearson
Download or read book Synthesis of Mixed Transition Metal Clusters of Osmium and Rhenium Via Metal Hydride Coupling Reactions written by Gregory Alan Pearson and published by . This book was released on 1980 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of the Mixed-Metal Alkylidyne Clusters RCFeCo2(CO)9H (R by : Ronald A. Epstein
Download or read book Synthesis and Characterization of the Mixed-Metal Alkylidyne Clusters RCFeCo2(CO)9H (R written by Ronald A. Epstein and published by . This book was released on 1978 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction of closed metal carbonyl trimers with carbonylmetalates has been shown to be a useful synthetic route to tetranuclear clusters in which the carbonylmetalate adds to the face of the original trimer. This type of reaction has been particularly useful for the synthesis of mixed-metal clusters. In principle, clusters with more than four framework atoms could be prepared by the addition of carbonylmetalates to the triangular faces of tetranuclear and larger clusters.
Book Synopsis Synthesis and Chemistry of Osmium and Ruthenium Clusters Containing a Group V Interstice by : Adrian Paul Moule
Download or read book Synthesis and Chemistry of Osmium and Ruthenium Clusters Containing a Group V Interstice written by Adrian Paul Moule and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Structural Characterization, and Reactivity of Di- and Trithiocarbamato Complexes Osmium and Ruthenium by : Leo John Maheu
Download or read book Synthesis, Structural Characterization, and Reactivity of Di- and Trithiocarbamato Complexes Osmium and Ruthenium written by Leo John Maheu and published by . This book was released on 1981 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ruthenium and Osmium Complexes of Poly(4-vinylpyridine) by : Jeffrey Mitchell Calvert
Download or read book Ruthenium and Osmium Complexes of Poly(4-vinylpyridine) written by Jeffrey Mitchell Calvert and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis and Characterization of Some Novel Group IB and Mercury Mixed Metal Clusters by : Stephen John Sherlock
Download or read book Synthesis and Characterization of Some Novel Group IB and Mercury Mixed Metal Clusters written by Stephen John Sherlock and published by . This book was released on 1985 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Mixed-metal Clusters of Osmium and Palladium by :
Download or read book The Chemistry of Mixed-metal Clusters of Osmium and Palladium written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: