Chemistry of Diruthenium Mu-alkenyl Complexes PDF Download
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Author: Paul Raymond Rodenhurst
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Paul Raymond Rodenhurst
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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![Chemistry of Diruthenium [mu]-alkenyl Complexes PDF](https://books.google.com/books/content/images/frontcover/BXkjjwEACAAJ?fife=w80-h100)
Author: Andrew John Phillips
Publisher:
ISBN:
Category :
Languages : en
Pages : 456
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![Chemistry of Diruthenium [mi]-alkenyl Complexes PDF](https://books.google.com/books/content/images/frontcover/flg-jwEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 388
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![Diruthenium Complexes [microform] : Synthesis, Chemistry and Catalysis PDF](https://books.google.com/books/content/images/frontcover/zogTvwEACAAJ?fife=w80-h100)
Author: Yuan Gao
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612680395
Category : Alkynes
Languages : en
Pages : 432
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This thesis describes the synthesis, chemistry and catalytic activity of several diruthenium complexes, in which two ruthenium centers are locked in close proximity by bridging bis(diphenylphosphino)methane, dppm, ligands.
Author: Darryl Richard Fahey
Publisher:
ISBN:
Category : Complex compounds
Languages : en
Pages : 188
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Author: Christian Bruneau
Publisher: John Wiley & Sons
ISBN: 9783527318926
Category : Science
Languages : en
Pages : 360
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Focusing on preparation and applications in synthesis and catalysis, this book finally closes a gap in the literature by summarizing this hot topic for the first time. As such, it gathers in one volume the key features of metal vinylidene and allenylidene complexes as well as reactive species and covers applications in metathesis, polymerization, molecular materials, carbon rich compounds and fine chemical production. The emphasis here is on the selective transformations of alkynes and enynes plus simple and complex molecules containing a triple C-C bond. The result is a must-have ready reference for organic, catalytic, complex, theoretical and polymer chemists, as well as those working with/on organometallics.
![Synthesis and Reactivity of Diruthenium [mu]-cumulene Complexes PDF](https://books.google.com/books/content/images/frontcover/eawrjwEACAAJ?fife=w80-h100)
Author: Richard James Kilby
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: David Peter Klein
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
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This dissertation describes three investigations of the dinuclear ruthenium complex, [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)4: (1) its use as a catalyst for the hydroamination of alkynes by a new mechanism, (2) its reactions with H2 to give new ruthenium clusters containing bridging hydride ligands, and (3) the determination of thermodynamic and kinetic acidities of two related complexes [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)3[P(OR)3]HBF4− (R= Me, Ph). A fundamentally new mechanism for alkyne hydroamination catalyzed by the ruthenium complex, [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)3(C2H4)H+BF4−, has been proposed. Many of the intermediates in the catalytic cycle have been isolated and/or characterized spectroscopically and found to react according to the proposed mechanism. The catalyst activity is terminated as a result of the isomerization of a bridging alkyne ligand in a key intermediate in the catalytic cycle. The butterfly cluster, [([eta]5-C5H3)2(SiMe2)2]2Ru4(CO)3H4, and the square planar cluster, [([eta]5-C5H3)2(SiMe2)2]2Ru4(CO)4H4, have been isolated from the photochemical reaction of H2 with the doubly-linked dicyclopentadienyl complex, [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)4, in benzene. Wavelength-dependent photolysis studies suggest that the first step in the reaction of [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)4 with H2 involves metal-metal bond cleavage. The reaction of the protonated phosphite complexes, [([eta]5-C5H3)2(SiMe2)2]Ru2(CO)3[P(OR)3]H+BF4− (R= Me, Ph), with tertiary amines (DABCO, 4-methylmorpholine, NEt3, N(n-Bu)3) results in clean deprotonation of the metal-metal bond by the amine. Equilibrium measurements show that the P(OPh)3 complex is more acidic than the P(OMe)3 complex. The rates of deprotonation of the phosphite complexes have been determined and follow the rate law: Rate = k1[complex] + k2[amine][complex]. Comparisons of the k2 rate constants reveal that the reactions are much more sensitive to the steric properties of the amine and metal complex than to electronic factors.
Author: James B. Myers
Publisher:
ISBN:
Category : Alkenes
Languages : en
Pages : 216
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Author: 許樂群
Publisher:
ISBN:
Category :
Languages : en
Pages : 267
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