Molecular Metal-Metal Bonds

Molecular Metal-Metal Bonds PDF

Author: Stephen T. Liddle

Publisher: John Wiley & Sons

Published: 2016-03-16

Total Pages: 592

ISBN-13: 3527673385

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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.

Metal-Metal Bonds and Clusters in Chemistry and Catalysis

Metal-Metal Bonds and Clusters in Chemistry and Catalysis PDF

Author: John P. Fackler Jr.

Publisher: Springer Science & Business Media

Published: 2013-11-22

Total Pages: 344

ISBN-13: 1489924922

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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.

Metal-Metal Bonding

Metal-Metal Bonding PDF

Author: Gerard Parkin

Publisher: Springer

Published: 2010-03-10

Total Pages: 316

ISBN-13: 3642052436

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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.

Multiple Bonds between Metal Atoms

Multiple Bonds between Metal Atoms PDF

Author: F. Albert Cotton

Publisher: Springer Science & Business Media

Published: 2006-07-31

Total Pages: 840

ISBN-13: 0387258299

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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

Molecular Modeling Basics

Molecular Modeling Basics PDF

Author: Jan H. Jensen

Publisher: CRC Press

Published: 2010-04-26

Total Pages: 192

ISBN-13: 1420075276

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Molecular modeling is becoming an increasingly important part of chemical research and education as computers become faster and programs become easier to use. The results, however, have not become easier to understand. Addressing the need for a "workshop-oriented" book, Molecular Modeling Basics provides the fundamental theory needed to understand

Metal-ligand Bonding

Metal-ligand Bonding PDF

Author: Rob Janes

Publisher: Royal Society of Chemistry

Published: 2004

Total Pages: 116

ISBN-13: 9780854049790

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The material addressed in this book forms the foundation of undergraduate lecture courses on d-block chemistry and facilitates learning through various key features.

A Textbook of Inorganic Chemistry – Volume 1

A Textbook of Inorganic Chemistry – Volume 1 PDF

Author: Mandeep Dalal

Publisher: Dalal Institute

Published: 2017-01-01

Total Pages: 480

ISBN-13: 8193872002

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An advanced-level textbook of inorganic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of four volume series, entitled "A Textbook of Inorganic Chemistry – Volume I, II, III, IV". CONTENTS: Chapter 1. Stereochemistry and Bonding in Main Group Compounds: VSEPR theory, dπ -pπ bonds, Bent rule and energetic of hybridization. Chapter 2. Metal-Ligand Equilibria in Solution: Stepwise and overall formation constants and their interactions, Trends in stepwise constants, Factors affecting stability of metal complexes with reference to the nature of metal ion and ligand, Chelate effect and its thermodynamic origin, Determination of binary formation constants by pH-metry and spectrophotometry. Chapter 3. Reaction Mechanism of Transition Metal Complexes – I: Inert and labile complexes, Mechanisms for ligand replacement reactions, Formation of complexes from aquo ions, Ligand displacement reactions in octahedral complexes- acid hydrolysis, Base hydrolysis, Racemization of tris chelate complexes, Electrophilic attack on ligands. Chapter 4. Reaction Mechanism of Transition Metal Complexes – II: Mechanism of ligand displacement reactions in square planar complexes, The trans effect, Theories of trans effect, Mechanism of electron transfer reactions – types; Outer sphere electron transfer mechanism and inner sphere electron transfer mechanism, Electron exchange. Chapter 5. Isopoly and Heteropoly Acids and Salts: Isopoly and Heteropoly acids and salts of Mo and W: structures of isopoly and heteropoly anions. Chapter 6. Crystal Structures: Structures of some binary and ternary compounds such as fluorite, antifluorite, rutile, antirutile, crystobalite, layer lattices- CdI2, BiI3; ReO3, Mn2O3, corundum, pervoskite, Ilmenite and Calcite. Chapter 7. Metal-Ligand Bonding: Limitation of crystal field theory, Molecular orbital theory, octahedral, tetrahedral or square planar complexes, π-bonding and molecular orbital theory. Chapter 8. Electronic Spectra of Transition Metal Complexes: Spectroscopic ground states, Correlation and spin-orbit coupling in free ions for Ist series of transition metals, Orgel and Tanabe-Sugano diagrams for transition metal complexes (d1 – d9 states), Calculation of Dq, B and β parameters, Effect of distortion on the d-orbital energy levels, Structural evidence from electronic spectrum, John-Tellar effect, Spectrochemical and nephalauxetic series, Charge transfer spectra, Electronic spectra of molecular addition compounds. Chapter 9. Magantic Properties of Transition Metal Complexes: Elementary theory of magneto - chemistry, Guoy’s method for determination of magnetic susceptibility, Calculation of magnetic moments, Magnetic properties of free ions, Orbital contribution, effect of ligand-field, Application of magneto-chemistry in structure determination, Magnetic exchange coupling and spin state cross over. Chapter 10. Metal Clusters: Structure and bonding in higher boranes, Wade’s rules, Carboranes, Metal Carbonyl Clusters - Low Nuclearity Carbonyl Clusters, Total Electron Count (TEC). Chapter 11. Metal-π Complexes: Metal carbonyls, structure and bonding, Vibrational spectra of metal carbonyls for bonding and structure elucidation, Important reactions of metal carbonyls; Preparation, bonding, structure and important reactions of transition metal nitrosyl, dinitrogen and dioxygen complexes; Tertiary phosphine as ligand.

Physics and Chemistry of Metal Cluster Compounds

Physics and Chemistry of Metal Cluster Compounds PDF

Author: L.J. de Jongh

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 326

ISBN-13: 9401512949

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On Friday, February 20, 1980, I had the pleasure to be present at the inaugural lecture of my colleague Jan Reedijk, who had just been named at the Chair of Inorganic Chemistry of Leiden University. According to tradition, the ceremony took place in the impressive Hall of the old University Academy Building. In the course of his lecture, Jan mentioned a number of recent developments in chemistry which had struck him as particularly important or interesting. Among those was the synthesis of large metal cluster compounds, and, to my luck, he showed a slide ofthe molecular structure of [PtI9(C)b]4-. (To my luck, since at traditional Leiden University it is quite unusual to show slides at such ceremonies.) This constituted my first acquaintance with this exciting new class of materials. I became immediately fascinated by this molecule, partly because of the esthetic beauty of its fivefold symmetry, partly because as a physicist it struck me that it could be visualized as an "embryonically small" metal particle, embedded in a shell of CO ligands.