Nmr Studies Of Rhodium Containing Clusters And Complexes

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Nmr Studies Of Rhodium Containing Clusters And Complexes

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Author : Daniel James Smawfield
language : en
Publisher:
Release Date : 1999

Nmr Studies Of Rhodium Containing Clusters And Complexes written by Daniel James Smawfield and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Nmr Studies Of Ruthenium And Rhodium Complexes

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Author : Sarah-Louise Henshaw
language : en
Publisher:
Release Date : 2016

Nmr Studies Of Ruthenium And Rhodium Complexes written by Sarah-Louise Henshaw and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

The Chemistry Of Mixed Metal Clusters Of Osmium And Rhodium

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Author : Po-Kwan Jasmine Lau
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-27

The Chemistry Of Mixed Metal Clusters Of Osmium And Rhodium written by Po-Kwan Jasmine Lau and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-27 with categories.

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

Supported Molecular Rhodium Complexes And Clusters

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Author : Ann Jia-Bao Liang
language : en
Publisher:
Release Date : 2008

Supported Molecular Rhodium Complexes And Clusters written by Ann Jia-Bao Liang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Therapeutic Rhodium Complexes

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Author : Afzal Hussain
language : en
Publisher: Springer Nature
Release Date : 2023-06-29

Therapeutic Rhodium Complexes written by Afzal Hussain and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-29 with Science categories.

This book describes the emergence and recent advances in the design and development of rhodium complexes as therapeutic agents. Different classes of anticancer rhodium complexes with particular emphasis on ligands containing nitrogen-oxygen donor atoms are presented. Anticancer rhodium complexes of N-heterocyclic carbenes are described, while half-sandwich, heterobimetallic, and multinuclear rhodium complexes are discussed. Therapeutic applications of rhodium complexes beyond cancer such as antibacterial agents or antiviral agents are also analyzed, among others. Their mechanism of action is overviewed in detail, and the authors thoroughly comment on the challenges and future outlooks of research in the development of rhodium metallodrugs. This title highlights the important research carried out in the development of therapeutic rhodium complexes and is of great interest to graduates and researchers working in the area of rhodium-based therapeutic drugs.

Multinuclear Nmr Studies On Rhodium Compounds Containing N Heterocyclic Ligands

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Author : J. T. Sampanthar
language : en
Publisher:
Release Date : 1996

Multinuclear Nmr Studies On Rhodium Compounds Containing N Heterocyclic Ligands written by J. T. Sampanthar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.

Characterization Nmr And Electronic Spectral Properties Of Binuclear Rhodium And Iridium Complexes Containing Hydroxypyridinate Ligands

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Author : Gary Stuart Rodman
language : en
Publisher:
Release Date : 1987

Characterization Nmr And Electronic Spectral Properties Of Binuclear Rhodium And Iridium Complexes Containing Hydroxypyridinate Ligands written by Gary Stuart Rodman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

The Synthesis Characterization And Reactivity Of Heterobimetallic Gold Hydride Cluster Complexes Of Ruthenium Osmium Rhodium And Iridium

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Author : Bruce Dean Alexander
language : en
Publisher:
Release Date : 1988

The Synthesis Characterization And Reactivity Of Heterobimetallic Gold Hydride Cluster Complexes Of Ruthenium Osmium Rhodium And Iridium written by Bruce Dean Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Polynuclear Complexes Of Rhodium And Iridium With Tridentate Group 15 Ligands

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Author : Lawrence Alan Fossett
language : en
Publisher:
Release Date : 1987

Polynuclear Complexes Of Rhodium And Iridium With Tridentate Group 15 Ligands written by Lawrence Alan Fossett and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.

Annual Reports On Nmr Spectroscopy

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Author :
language : en
Publisher: Academic Press
Release Date : 1990-01-23

Annual Reports On Nmr Spectroscopy written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-01-23 with Science categories.

Annual Reports on NMR Spectroscopy