Download or read book Synthesis Characterization and Reactivity of Novel Trinuclear Organometallic Cluster Complexes of Iridium Rhodium and Cobalt written by Michelle Royster Dial and published by . This book was released on 1988 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Iridium Complexes in Organic Synthesis written by Luis A. Oro and published by John Wiley & Sons. This book was released on 2008-12-03 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ranging from hydrogenation to hydroamination, cycloadditions and nanoparticles, this first handbook to comprehensively cover the topic of iridium in synthesis discusses the important advances in iridium-catalyzed reactions, namely the use of iridium complexes in enantioselective catalysis. A must for organic, complex and catalytic chemists, as well as those working with/on organometallics.

Download or read book Synthesis Characterization and Reactivity of Rhodium and Iridium iminophosphorane Complexes written by Pieter Imhof and published by . This book was released on 1990 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Some Novel Iridium Iron and Cobalt monocarborane Complexes written by Robin A. McCown and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction of the fragments {Ir(PEt3)n}+ with the monocarborane anion [closo-1-CB7H8]- causes an oxidative insertion to occur, and the iridium moiety to become a cluster vertex. This reaction provides two distinct, neutral, 9-vertex {IrCB7} products, depending on the ratio of iridium and phosphine reactants used. The iridium centers in these products have differing oxidation states, illustrating the exceptional ability of the smaller anionic monocarborane ligands to stabilize metals in higher oxidation states. Although salts of the 11-vertex anionic species [1,1,1-(CO)3-closo-1,2-FeCB9H10]- have resisted synthesis in the past, its analogue [1,1,1-(CO)3-2-Ph-closo-1,2-FeCB9H9]- has now been prepared. Moreover, two reactions demonstrating the derivative chemistry of this compound have been discovered. Previously, 10- and 12-vertex dicobalt monocarboranes were prepared and studied by treating monocarboranes with [Co2(CO)8]. This produced several poly-cobalt anions. New derivatives of these anions have been synthesized, using protocols developed since their discovery.

Download or read book Water soluble Iridium and Rhodium Complexes written by Julia Knapp and published by . This book was released on 2018 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Reactivity of Ylidyne and Ylido Complexes Supported by Scorpionato Ligands written by Priyabrata Ghana and published by Springer. This book was released on 2019-01-01 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the development of the first open-shell heavier tetrylidyne complexes featuring a tetrel-centered unpaired electron, and unprecedented metallatetrylidynes containing a multiply-bonded, linear-coordinated single heavier tetrel atom embedded between two metal centers. The chemistry of compounds featuring triple bonds of the heavier Group-14 elements Si–Pb with transition metals is a very challenging research area, which combines modern molecular main-group element with transition-metal chemistry, and is of fundamental importance for the understanding of chemical bonding. During the last 15 years, the research in this area has witnessed considerable progress in isolating a series of closed-shell tetrylidyne complexes. However, despite numerous attempts, open-shell tetrylidyne complexes and heavier group 14 element congeners of metallacarbynes and carbide complexes remained inaccessible. In this book, readers will find more about the reactivity studies of these novel complexes that uncovered a plethora of exceptional products, including a novel m3-silicido complex, the first dimetallasilacumulene with a linear, two-coordinated single silicon atom and the first compounds of planar tetracoordinated silicon (ptSi) (Anti-van’t Hoff-Le Bell Silicon). Readers will also learn about the isolation and full characterization of the first room-temperature stable disilavinylidene, a silicon analogue of the very reactive vinylidenes (R2C=C:), and the first intermetallic plumbylidyne ligand transfer reactions.

Download or read book Synthesis and Reactions of Cobalt and Rhodium Organometallic Complexes written by Jennifer Susan Protopopoff and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Characterization and Reactivity of Electron Rich Transition Metal Organometallic Complexes written by James Joseph Welter and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Reactivity of Organometallic Complexes of Iridium and Iron in Aqueous and Basic Media written by Michael S. Webster-Gardiner and published by . This book was released on 2011 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Stereodynamics of Rhodium and Iridium Organometallic Complexes written by Randy Joe Lawson and published by . This book was released on 1978 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Organo iridium Compounds written by Joy Faith Frazier and published by . This book was released on 1991 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tris guanidinato Complexes of Iridium and Rhodium in the Oxidation States III and IV written by Wei-Tsung Lee and published by . This book was released on 2011 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical oxidation by [FeCp2]PF6 afforded thermally unstable, paramagnetic Rh IV compounds, [Rh{ArNC(NR 2)NAr} 3]PF6, which were characterized by mass spectrometry and electronic absorption spectroscopy. Furthermore, two FeII complexes of tetradentate tripodal ligands, [Fe(L1)(OTf) 2] and [Fe(L2)(OTf) 2]; where L1 = N, N-bis(2-benzimidazolylmethyl)-N-(2-pyridylmethyl) amine and L2 = N, N-bis[(1-methylbenzimidazol-2-yl)methyl]-N-[(pyridin-2-yl)methyl] amine; were synthesized and characterized. The 1 H NMR spectra for [Fe(L1)(NCMe) 2](OTf) 2 and [Fe(L2)(NCMe) 2](OTf) 2 in CD3 CN solution at ambient temperature exhibit paramagnetically shifted peaks typical of high-spin FeII complexes, while variable-temperature 1 H NMR spectroscopy showed that the Fe center in [Fe(L1)(NCMe) 2](OTf) 2 is in a spin equilibrium and that in [Fe(L2)(NCMe) 2](OTf) 2 in the high-spin state (at 25° C). Highly reactive oxoiron(IV) complexes were obtained by reaction of the FeII complexes with an excess of m-CPBA at -40° C.

Download or read book Synthesis Characterization and Catalytic Performance of Rhodium and Iridium Complexes Supported in Dealuminated HY Zeolite written by Claudia Martinez Macias and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Essentially molecular supported catalysts were synthesized by using organometallic complexes as precursors, such as Rh(CO)2(acac), Rh(C2H4)2(acac), Ir(CO)2(acac), and Ir(C2H4)2(acac) (where acac is acetylacetonate) and HY zeolite as a support. A goal was to obtain highly uniform solid catalysts with well-defined structures. Characterization by X-ray absorption (XAS) and infrared (IR) spectroscopies confirmed the anchoring of the metal to the support with a high degree of uniformity. IR and 29Si and 27Al nuclear magnetic resonance (NMR) spectra characterize the presence of amorphous regions in the zeolite, and scanning transmission electron microscopy (STEM) identifies these amorphous regions, where iridium is more susceptible to aggregation than in the crystalline regions. Treatment of Ir(CO)2/HY zeolite with C2H4 and H2 at room temperature led to a family of species which includes Ir(CO)2, Ir(CO)(C2H4), Ir(CO)(C2H4)2, Ir(CO)(C2H5) and, tentatively, Ir(CO)(H). The identification of the species is based on XAS and IR spectra (including spectra of samples made with isotopically labeled ligands, 13CO and D2O) and density functional theory (DFT) calculations. The catalytic performance of isostructural rhodium and iridium species incorporating CO as a ligand was measured for the ethylene conversion; the CO not only acts as an inhibitor but it also as a probe molecule providing information about the electronic properties of the metal and of the species present during reaction. When isostructural rhodium and iridium diethylene species are bonded near each other on HY zeolite, the iridium complexes alter the selectivity of rhodium by spilling over hydrogen that hinders the interaction between ethylene and the acidic sites of the zeolite that act in concert with the rhodium, causing it to favor ethylene hydrogenation over dimerization. All these results show how structurally simple solid catalysts can be used to facilitate fundamental understanding of catalysts and their performance.

Download or read book Reactivity and Synthetic Applications of Cobalt Rhodium and Iridium Alkyls written by John Burns Cannon and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Rhodium and Iridium Complexes with the Bis dimethylsilylcyclopentadienyl Ligand written by Gordon J. Hunter and published by . This book was released on 2005 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Some Rhodium and Iridium Alkyl Complexes written by Matthew Albert Kulzick and published by . This book was released on 1988 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Organometallic Chemistry of Rhodium and Iridium Complexes of Macrocyclic PCP and POCOP Pincer Ligands written by Baptiste Leforestier and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: