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| Author | : Richard Dominic O'Sullivan |
| Publisher | : |
| Total Pages | : 496 |
| Release | : 1985 |
| Genre | : Chemistry and chemical industries (Board of Studies) |
| ISBN | : |
| Author | : F. R. Hartley |
| Publisher | : |
| Total Pages | : 570 |
| Release | : 1973 |
| Genre | : Science |
| ISBN | : |
| Author | : Allan J. Canty |
| Publisher | : Springer |
| Total Pages | : 195 |
| Release | : 2011-02-25 |
| Genre | : Science |
| ISBN | : 3642174299 |
Kyle A. Grice, Margaret L. Scheuermann and Karen I. Goldberg: Five-Coordinate Platinum(IV) Complexes.- Jay A. Labinger and John E. Bercaw: The Role of Higher Oxidation State Species in Platinum-Mediated C-H Bond Activation and Functionalization.- Joy M. Racowski and Melanie S. Sanford: Carbon-Heteroatom Bond-Forming Reductive Elimination from Palladium(IV) Complexes.- Helena C. Malinakova: Palladium(IV) Complexes as Intermediates in Catalytic and Stoichiometric Cascade Sequences Providing Complex Carbocycles and Heterocycles.- Allan J. Canty and Manab Sharma: h1-Alkynyl Chemistry for the Higher Oxidation States of Palladium and Platinum.- David C. Powers and Tobias Ritter: Palladium(III) in Synthesis and Catalysis.- Marc-Etienne Moret: Organometallic Platinum(II) and Palladium(II) Complexes as Donor Ligands for Lewis-Acidic d10 and s2 Centers.
| Author | : Kara Leigh Cetto |
| Publisher | : |
| Total Pages | : 268 |
| Release | : 2003 |
| Genre | : |
| ISBN | : |
In an effort to design complexes in which electrochemical reduction does not result in loss of the chiral ligand, five different bis(oxazoline) ligands were prepared (3, 5, 7, 8 and 9). 3 was found to have poor solubility and an exceedingly negative reduction potential of Ep[subscript]c= -2.38 V. Chemical reduction studies of 5 revealed that the bis(oxazoline) ligand is ejected during the reduction process. Compound 7 was found to have a reduction potential of Ep[subscript]c= -1.12 V. However, ejection of the chiral ligand occurs when other bis(oxazoline) platinum and palladium dichloride complexes are reduced. Therefore, a neutral PdClMe complex (8) with a reduction potential of Ep[subscript]c= -2.97 V and a cationic Pd(CH[subscript]3CN)Me complex (9) (Ep[subscript]c= -1.38 V) were also prepared. A platinum complex of the bidentate phosphine ligand was then investigated. Electrochemistry studies revealed that 11 undergoes a two-electron reduction process in which the ligand remains bound to the metal. The synthesis of Pt(DIOP)(trans-stilbene) through the chemical and electrochemical reduction of 11 further demonstrated that DIOP remains bound to platinum after reduction of 11.
| Author | : Peter Maitlis |
| Publisher | : Elsevier |
| Total Pages | : 336 |
| Release | : 2012-12-02 |
| Genre | : Science |
| ISBN | : 0323155324 |
The Organic Chemistry of Palladium, Volume 1: Metal Complexes deals with the number of organic reactions that can be catalyzed by palladium, particularly as regards the structures bonding, and reactions of the metal complexes. The book discusses monodentate ligands which are either neutral (carbonyls, isonitriles, carbenes) or anionic (methyl, phenyl, ethynyl, hydride). The text also examines the complexes formed by 1,3-. 1,4-, and 1,5-diolefins where four carbon atoms are bound to the metal. Palladium (II) can undergo a reaction with the 1,3-dienes and results in a ?-allylic complexes where only three carbon atoms are coordinated to the metal. (The bonding situation in complexes 1,4- and 1,5-dienes, where no great interaction between the olefins are similar to that in monoolefin complexes, is straightforward), Olefins can also react with palladium chloride in protic solvents to produce ketones (or aldehydes) or organic coupling products. Some experiments conducted by Huttel et al shows that some palladium was precipitated from the reactions giving lower yields, resulting in various aldehydes and ketones as by products. The book also discusses cyclopentadienyl and benzene complexes. The text can prove beneficial for researchers, investigators and scientists whose works involve organic chemistry, analytical chemistry, physical chemistry and inorganic chemistry.
| Author | : Nasim Hadj-Bagherie |
| Publisher | : |
| Total Pages | : 298 |
| Release | : 1985 |
| Genre | : Complex compounds |
| ISBN | : |
| Author | : Allan Robertson Petersen |
| Publisher | : |
| Total Pages | : |
| Release | : 2012 |
| Genre | : |
| ISBN | : |
Chapter 1 provides an overview of the oxidation of methane by platinum salts known as Shilov chemistry. This includes platinum complexes used for the selective oxidation of methane to methyl bisulfate. Attention is paid to model platinum complexes that have been synthesised to explore the oxidation of methane using dioxygen as the oxidant. Chapter 2 describes two sets of tridentate N donor ligands that have been synthesised. The first set contains 6,6"-disubsthuted-2,2/:6/,2"-terpyridine ligands, of these two new ligands 6,6"-di(methylamino)-2,2/:6/,2"-terpyridine and 6,6"-dimethoxy-2,2/:6/,2"-terpyridine have been synthesised and fully characterised. The second set contains non-terpyridine tridentate ligands. The synthesis and characterisation of novel cationic platinum(II) methyl complexes bearing these ligands is described in Chapter 3. The structures of some of these complexes have been determined by X-ray crystallography. Further, the reactivity of the complexes towards dioxygen is reported and how different reactivity is imparted by the different ligands is discussed. The ability of some of these platinum(II) methyl complexes to insert dioxygen into their M-Me bonds arises from the steric interaction between the Pt-Me ligand and the substituents in the 6- and 6"-positions on the terpyridine ligand. Chapter 4 describes a study into the mechanism of the insertion of dioxygen into a Pt-Me bond. This includes deuterium labelling experiments, which led to the discovery of the exchange of methyl ligands between platinum(II) and palladium(II) centres. A mechanism for this exchange involving the formation of a MII_MII dimer is proposed. In addition, the decomposition of a palladium(II) methylperoxo complex to give an intriguing new metallacyclic hemiacetal alkoxide complex is described. A possible mechanism for the formation of this new palladium(II) complex is discussed. The synthesis and characterisation of the new compounds discussed in Chapters 2-4 are reported in Chapter 5. 4.
| Author | : Gregg J. Lumetta |
| Publisher | : |
| Total Pages | : 298 |
| Release | : 1986 |
| Genre | : Complex compounds |
| ISBN | : |
| Author | : P. Henry |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 449 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 940099446X |
The field of organometallic chemistry has emerged over the last twenty-five years or so to become one of the most important areas of chemistry, and there are no signs of abatement in the intense current interest in the subject, particularly in terms of its proven and potential application in catalytic reactions involving hydrocarbons. The development of the organometallic/ catalysis area has resulted in no small way from many contributions from researchers investigating palladium systems. Even to the well-initiated, there seems a bewildering and diverse variety of organic reactions that are promoted by palladium(II) salts and complexes. Such homogeneous reactions include oxidative and nonoxidative coupling of substrates such as olefins, dienes, acetylenes, and aromatics; and various isomerization, disproportionation, hydrogenation, dehydrogenation, car bonylation and decarbonylation reactions, as well as reactions involving formation of bonds between carbon and halogen, nitrogen, sulfur, and silicon. The books by Peter M. Maitlis - The Organic Chemistry of Palladium, Volumes I, II, Academic Press, 1971 - serve to classify and identify the wide variety of reactions, and access to the vast literature is available through these volumes and more recent reviews, including those of J. Tsuji [Accounts Chem. Res. , 6, 8 (1973); Adv. in Organometal. , 17, 141 (1979)], R. F. Heck [Adv. in Catat. , 26, 323 (1977)], and ones by Henry [Accounts Chem. Res. , 6, 16 (1973); Adv. in Organometal. , 13, 363 (1975)]. F. R. Hartley's book - The Chemistry of Platinum and Palladium, App!. Sci. Pub!.
| Author | : William P. Griffith |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 371 |
| Release | : 2013-06-29 |
| Genre | : Science |
| ISBN | : 3662091887 |
With platinum and rhodium, palladium is one of the most important members of the platinum metal group. The last Gmelin treatment of it was in 1942, and knowledge of its properties and chemistry has made enormous strides since then. This volume is primarily concerned with binary compounds and with the coordination complexes derived from them. Although it is a member of the nickel-palladium-platinum triad, it more closely resernblas platinum in its binary and coordination chemistry, though being a second-row transition element it displays less tendency than does platinum to assume higher oxidation states. ln heterogeneous and homogeneous catalysis, referred to at appropriate points, palladium and its complexes are of great importance in bulk and fine chemieals production, effecting a wide variety of organic transformations. The arrangement of material in this volume follows the traditional Gmelin arrangement. Within each category of compounds or complexes the material is arranged, as usual, in order of ascending metal oxidation states (e. g., palladium(ll) precedes palladium(IV)). The chemistry of the palladium-hydrogen system is so large that it merits a separate volume, so this book starts with the binary oxides and oxopalladates followed by hydroxides, hydroxo complexes and aquo complexes. Then nitrides and nitrates are treated. They are followed by the large chapters on halides and their complexes (172 pages). The largest single chapter in this volume (11 0 pages) deals with chlorides, chloropalladates and other chloro complexes.
