Download or read book Metal metal Quadruple Bonds in the Mesomorphic State written by Elena Felixovna Putilina and published by . This book was released on 1994 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiple Bonds between Metal Atoms written by F. Albert Cotton and published by Springer Science & Business Media. This book was released on 2006-07-31 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides historical perspective as well as current data Abundantly illustrated with figures redrawn from literature data Covers all pertinent theory and physical chemistry Catalytic and chemotherapeutic applications are included
Download or read book Metal Metal Bonds and Clusters in Chemistry and Catalysis written by John P. Fackler Jr. and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a series of papers and abstracts from the 7th Industry-University Cooperative Chemistry Program symposium held in the spring of 1989 at Texas A&M University. The symposium was larger than previous IUCCP symposia since it also celebrated the 25 years that had elapsed since the initial discovery by F. A. Cotton and his co-workers of the existence of metal-metal quadruple bonds. Cotton's discovery demonstrated that multiple bonding in inorganic systems is not governed by the same constraints observed in organic chemistry regarding s and p orbital involvement. The d orbitals are involved in the multiple bonding description. The quadruple bond involves considerable d orbital overlap between adjacent metal centers. Part I of this series of papers focuses upon the impact of this discovery and describes further contributions to the development of the field. Multiple metal-metal bonding now is known to permeate broad areas of transition metal chemistry. The understanding of metal-metal bonding that developed as a result of the discovery of multiple metal-metal bonding awakened a new chemistry involving metal clusters. Clusters were defined by Cotton to be species containing metal-metal bonding. Clusters in catalysis therefore seemed a logical grouping of papers in this symposium. Clusters play an every increasing role in the control of chemical reactions. Part II of this book describes some of the interesting new developments in this field. In Part III the papers examine the role clusters play in describing and understanding solid state materials.
Download or read book Molecular Metal Metal Bonds written by Stephen T. Liddle and published by John Wiley & Sons. This book was released on 2016-03-16 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematically covering all the latest developments in the field, this is a comprehensive and handy introduction to metal-metal bonding. The chapters follow a uniform, coherent structure for a clear overview, allowing readers easy access to the information. The text covers such topics as synthesis, properties, structures, notable features, reactivity and examples of applications of the most important compounds in each group with metal-metal bonding throughout the periodic table. With its general remarks at the beginning of each chapter, this is a must-have reference for all molecular inorganic chemists, including PhD students and postdocs, as well as more experienced researchers.
Download or read book Reactions of Metal Metal Multiple Bonds 8 Forming Mo Mo Quadruple Bonds by Reductive Elimination Alkyl Group Disproportionation in the Reactions of 1 2 Mo2R2 NMe2 4 Compounds M Triple Bond M with Carbon Dioxide and 1 3 Diaryltriazenes written by M. H. Chisholm and published by . This book was released on 1981 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addition of either CO2 or 1,3-diaryltriazines to 1,2-Mo2R2(NMe2)4 compounds promotes reductive elimination from the dimetal center by alkyl group disproportionation with a concomittant metal-metal bond order change from three to four when R = an alkyl group having beta-hydrogen atoms. Both reactions proceed through intermediates of the form 1,2-Mo2R2(NMe2)2(chelate)2. The elimination of alkane and alkene is intramolecular and has a formal analogy with that found in mononuclear chemistry, namely beta-hydrogen elimination followed by reductive elimination by carbon-hydrogen bond formation. The detailed pathway leading to this is, however, uncertain. Finally, it should be recognized that it is not necessary to invoke the formation of an intermediate metal-hydride in these reactions. The beta-hydrogen atom of an ethyl ligand could be transferred to the alpha-carbon of the other ethyl ligand through the agency of one of the nitrogen atoms, which could be either a triazenido or dimethyl-amido ligand. In a formal sense this would have analogy with E2 reactions of substituted alkanes. These, and other possibilities, provide us with the stimulus for further studies of reductive eliminations of hydrocarbons from dinuclear metal centers.
Download or read book The Effect of Metal Containing Ligands on the Metal metal Quadruple Bond written by Christopher Blair Durr and published by . This book was released on 2015 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's ever increasing demand for fossil fuels has lead to a renewed focus by the scientific community to develop energy sources that are clean, renewable, and economical. One of the most promising emerging technologies is photovoltaic cells that can turn sunlight directly into energy or into fuels such as methane or hydrogen. In order for these cells to replace preexisting energy sources, it is necessary to increase their efficiency and processability while also curtailing cost. The focus of this work will be on electron donating materials, the main purpose of which is to absorb light and cause charge transfer to occur in the cell. To increase efficiency of donor materials several factors must be considered. Firstly, the material must capture as much of the solar spectrum as possible, which ranges from 400 nm to well over 1200 nm. Thus a material that has a broad, tunable absorption band is key to capturing as much of this light as possible. Secondly, the absorbing material must efficiently absorb photons by having a high molar absorptivity. Lastly, when light hits the donor material there must be a sufficient separation of the electron-hole pair. The material must stay in this charge separated state long enough to undergo charge transfer to an acceptor and thus begin the circuit.
Download or read book Metal Metal Bonding written by Gerard Parkin and published by Springer. This book was released on 2010-03-10 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: John Berry: Metal-Metal Bonds in Chains of Three or More Metal Atoms: From Homometallic to Heterometallic Chains.- Malcolm Chisholm: Electronically Coupled MM Quadruple Bonded Complexes of Molybdenum and Tungsten.- Philip Power: Transition Metal Complexes Stabilized by Bulky Terphenyl Ligands: Applications to Metal–Metal Bonded Compounds.- Gerard Parkin: Metal–Metal Bonding in Bridging Hydride and Alkyl Compounds.- Roland Fischer and Gernot Frenking: Structure and Bonding of Metal Rich Coordination Compounds Containing Low Valent Ga(I) and Zn(I) Ligands.- Mike Hill: Homocatenation of Metal and Metalloid Main Group Elements.- Constandinos A. Tsipis: Aromaticity/Antiaromaticity in "Bare" and ‘‘Ligand-Stabilized’’ Rings of Metal Atoms.- Alexander Boldyrev: All-Transition Metal Aromaticity and Antiaromaticity.
Download or read book Metal to metal Bonded States of the Main Group Elements written by Michael James Taylor and published by . This book was released on 1975 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Science Technology Index written by and published by . This book was released on 1995 with total page 1804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation and Properties of Compounds Containing Quadruple Metal metal Bonds written by Ian Berkeley Walton and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reductive Coupling And Transition Metal Calixarene Complexes written by Jacqueline A. Acho and published by . This book was released on 1994 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1994 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of New Materials Containing Metal metal Quadruple Bonds written by Chiwei Hu and published by . This book was released on 1995 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1995 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metallomesogens written by Jose Luis Serrano and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on metal-containing liquid crystals is a rapidly expanding, multidisciplinary field with new materials continually being synthesized and novel applications being developed. 'Metallomesogens' is the first comprehensive survey of the field, introducing the reader to: * materials design * synthesis * physical properties * emerging applications Carefully selected references round off this well-organized compendium. It is an indispensable guide to experienced researchers in coordination and organometallic chemistry as well as in liquid-crystal and materials science. Newcomers and graduate students will also benefit from this didactically sound introduction to the field.
Download or read book Russian Chemical Reviews written by and published by . This book was released on 1993 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gold Chemistry written by Fabian Mohr and published by John Wiley & Sons. This book was released on 2009-04-20 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by world-class authors, this most recent major book on the topic highlights new and current trends as well as future directions. It is comprehensive in its scope, covering all aspects of gold chemistry -- from homogeneous to heterogeneous catalysis, from supramolecular assemblies to sensors and medicinal applications. The result is an invaluable work for both organic and inorganic chemists working in universities and industry, as well as material scientists.
