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Book Spectroscopic Studies of Ion solvation and Ligand metal Coordination

Download or read book Spectroscopic Studies of Ion solvation and Ligand metal Coordination written by John Steven Loring and published by . This book was released on 2000 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spectroscopic Studies of Metal Complexes in Solution

Download or read book Spectroscopic Studies of Metal Complexes in Solution written by Azam Rahimi and published by . This book was released on 1977 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Advances in Metal and Semiconductor Clusters

Download or read book Advances in Metal and Semiconductor Clusters written by M.A. Duncan and published by Elsevier. This book was released on 2001-07-10 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: In previous volumes in this series, Advances in Metal and Semiconductor Clusters, the focus has been on atomic clusters of metals, semiconductors and carbon. Fundamental gas phase studies have been surveyed, and most recently scientists have explored new materials which can be produced from clusters or cluster precursors. In this latest volume, the focus shifts to clusters composed primarily of non-metal molecules or atoms which have one or more metal atoms seeded into the cluster as an impurity. These clusters provide model systems for metal ion solvation processes and metal-ligand interactions. Metal-ligand bonding underlies the vast fields of organometallic chemistry, transition metal chemistry and homogeneous catalysis. Catalytic activity, ligand displacement reactions and photochemical activity depend on the specific details of metal-ligand bonding. Likewise, metal ions are ubiquitous in chemistry and biology and weaker electrostatic interactions play a leading role in their function. In solution, metals exist in different charge states depending on the conditions, and the solvation environment strongly influences their chemistry. Many enzymes have metal ions at their active sites, and electrostatic interactions influence the selectivity for metal ion transport through cell membranes. Metal ions (e.g., Mg+, Ca+) are deposited into the earth's atmosphere by meteor ablation, resulting in a rich variety of atmospheric chemistry. Similarly, metal ions ( Mg+) have been observed in planetary atmospheres and in the impact of the comet Shoemaker-Levy 9 on Jupiter. In various circumstances, the electrostatic interactions of metal ions determine the outcome of significant chemistry. Cluster chemistry has made significant contributions to the understanding of these stronger metal ligand interactions and weaker metal ion solvation interactions. In this volume, the authors explore a variety of work in these general areas, where new cluster science techniques in the gas phase have made it possible to synthesize new kinds of complexes with metals and to measure their properties in detail.

Book Solvation Ionic and Complex Formation Reactions in Non Aqeuous Solvents

Download or read book Solvation Ionic and Complex Formation Reactions in Non Aqeuous Solvents written by K. Burger and published by Elsevier. This book was released on 2012-12-02 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solvation, Ionic and Complex Formation Reactions in Non-Aqueous Solvents: Experimental Methods for their Investigation presents the available methods and their particular value in investigating solutions composed of non-aqueous solvents. This book is composed of 10 chapters and begins with a brief description of the complexity of the interactions possible n solutions. The subsequent chapters deal with a classification of the solvents and empirical solvent strength scales based on various experimental parameters, together with various correlations empirically describing the solvent effect. Other chapters present the methods for the purification of solvents and ways of checking their purity, as well as the individual results achieved during investigations of the solvent effect, particularly the general regularities recognized. The remaining chapters provide a review of the coordination chemistry of non-aqueous solutions. This book will prove useful to analytical and inorganic chemists.

Book Spectroscopic Studies of Ionic Solvation in Nonaqueous Media

Download or read book Spectroscopic Studies of Ionic Solvation in Nonaqueous Media written by Mark Shiel Greenberg and published by . This book was released on 1974 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spectroscopic Studies of Alkali Metal Complexes in Non aqueous Media

Download or read book Spectroscopic Studies of Alkali Metal Complexes in Non aqueous Media written by Adamantia Rokofilou-Hourdakis and published by . This book was released on 1978 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spectroscopic Studies of Non covalent Metal Ion ligand Interactions

Download or read book Spectroscopic Studies of Non covalent Metal Ion ligand Interactions written by Abdulkadir Kocak and published by . This book was released on 2014 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-covalent interactions between metal ions and ligands such as water and methane have been extensively studied due to their biological and industrial importance. Gas phase studies can reveal the fundamental nature of these metal-ligand interactions. Photofragment spectroscopy is a powerful technique to investigate bond strengths, dissociation dynamics, molecular geometry and clustering and can be applied to electronic and vibrational spectroscopy. Using a home built apparatus, which combines ion production via laser ablation, separation via time-of-flight (TOF) mass spectrometry, laser excitation, and TOF fragment mass analysis, we have obtained electronic spectra of Co+(H2O) and vibrational spectra of M+(CH4)n (M=Co, Ni, Cu, Ag; n=1-4 or 1-6). The experimental techniques, apparatus, data acquisition and analysis employed throughout this thesis are described and explained in chapters 1 and 2. Chapter 3 discusses the electronic spectra of Co+(H2O), Co+(HOD) and Co+(D2O), measured from 13500 cm-1 to 18400 cm-1 using photodissociation spectroscopy. Transitions to four excited electronic states, with vibrational and partially resolved rotational structure are observed. The Co+-(H2O) binding energy is determined from the dissociation onset. The experiments and supporting calculations provide detailed information such as the electronic configuration of excited electronic states, how the Co+ electronic state affects the Co+-H2O bond strength, and how binding to Co+ changes the geometry of water. Chapter 4 discusses measurement and analysis of vibrational spectra of M+(CH4)m(Ar)3-m and M+(CH4)n (M=Co, Ni; m=1,2; n=3,4) in the C-H stretching region (2500-3100 cm-1). Interaction with the metal leads to large red shifts in the C-H stretches for proximate hydrogens. The extent of this shift is sensitive to the methane coordination (h2 vs. h3) and to the metal-methane distance. The structures of the complexes are determined by comparing measured spectra with those calculated for candidate structures. All complexes show h2 methane coordination and the d orbital occupancy determines which structures are preferred. Chapter 5 extends these studies to M+(CH4)n (M=Cu, Ag; n=1-6). Clusters have h2 methane coordination and prefer symmetrical structures due to the d10 spherical electronic configuration of M+. Clusters with n>4 also show features from second shell ligands. Chapter 6 discusses extending this work to metal cluster ion -methane interactions.

Book Spectroscopy of Transition Metal Ions on Surfaces

Download or read book Spectroscopy of Transition Metal Ions on Surfaces written by Bert M. Weckhuysen and published by Leuven University Press. This book was released on 2000 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical industries are based on catalytic processes as both bulk and fine chemicals are often produced with heterogeneous catalysts. Transition metal ions dispersed on high-surface area inorganic solids are very important catalysts and a full characterization of these materials requires a profound knowledge of the oxidation state, coordination environment and dispersion of the metal ions on the catalyst surface. Such information can only be obtained by using a combination of complementary spectroscopic techniques. 'Spectroscopy of Transition metal ions on Surfaces' serves as an introduction to some of the most important spectroscopic techniques nowadays used for studying the chemistry and catalytic properties of transition metal ions on surfaces. The basic principles and the strengths and weaknesses of continuous wave electron spin resonance, pulsed electron spin resonance, solid state nuclear magnetic resonance, infrared spectroscopy, Raman spectroscopy, diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy are critically reviewed by internationally recognized experts. This gives the reader a solid background for judging literature results and for planning and conducting his/her own experiments. Each chapter closes with several relevant examples mainly from the recent literature. In addition, the use of in situ techniques and chemometrical techniques has been included because of its growing importance in catalyst characterization. As a consequence, the book has been written as a text not only for graduate students, but also for anyone else who is new in the field and wants a recent update. The following scientists have contributed to this textbook: Br.

Book Characterization of Solutes in Nonaqueous Solvents

Download or read book Characterization of Solutes in Nonaqueous Solvents written by Mamantov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of contributions by participants in the Symposium "Spectroscopic and Electrochemical Characterizat.ion of Solute Species in Non~Aqueous Solvents" which took place at the American Chemical Society Meeting, Division of Analytical Chemistry, August 31 and September I, 1976, San Francisco, California. The manuscripts were submitted to the editor during the first half of 1977 and, in most cases, represent reviews of selected research topics in the broad area of characterization of solute species in non~aqueous solvents. In organizing this Symposium, I attempted to bring together a significantly large group of research workers involved in spectro scopic and electrochemical studies in the three large classes of non-aqueous solvents ~ organic solvents, covalent inorganic sol vents and molten salts. The experimental apprcaches and problems, such as avoidance of traces of moisture and oxygen, are frequently similar for all types of non-aqueous solvents. It is hoped that this volume will be useful to all concerned with chemistry in non-aqueous solvents. Gleb l>lamantov , Contents 1. IDENTIFICATION AND SYSTEMIZATION OF SOLVENT PROPERTIES INVOLVED IN THE LIGAND SUBSTITUTION KINETICS OF LABILE COMPLEXES OF NICKEL(II) J. F. Coetzee, D. Frollini, C. G. Karakatsanis, E. J.

Book Spectroscopic Studies of Ionic Solvation

Download or read book Spectroscopic Studies of Ionic Solvation written by Wayne Jan DeWitte and published by . This book was released on 1975 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Metal Solvation and Novel Metal Ligand Interactions in Gas Phase Clusters

Download or read book Metal Solvation and Novel Metal Ligand Interactions in Gas Phase Clusters written by and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas phase metal-containing clusters are investigated with time-of-flight mass spectrometry, and with both electronic and vibrational laser spectroscopy. Metal ion-molecule complexes of Mg(+) and Ca(+) are studied with electronic photodissociation spectroscopy near the energies of the atomic cation ((2)P-(2)S) resonances. Vibrational spectroscopy of Mg(+) and Al(+) complexes with CO2 are studied with infrared photodissociation spectroscopy near the CO2 asymmetric stretch vibration. The vibrational spectroscopy of metal oxide and carbide nanoclusters are studied with multiphoton ionization or multiphoton photodissociation using an infrared free-electron laser. Experiments designed to synthesize macroscopic quantities of ligand-coated nanoparticles have been initiated.

Book Metal Ligand Interactions in Organic Chemistry and Biochemistry

Download or read book Metal Ligand Interactions in Organic Chemistry and Biochemistry written by A. Pullman and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 9th Jerusalem Symposium was dedicated to the memory of Professor Ernst David Bergmann. An imposing and deeply moving memorial session, chaired by Professor Ephraim Katzir, the President of the State of IsƯ rael and a close friend of Professor Bergmann preceded the Symposium itself. During this session, Professor Bergmann's personality, scienƯ tific achievements and contributions to the development of his country were described and praised, besides President Katzir, by Professor A. Dvoretzky, President of the Israel Academy of Sciences and Humanities, Professor D. Ginsburg, Dean of the Israel Institute of Technology in Haifa and the author of these lines. May I just quote short extracts from these speeches. President Katzir: "As we open this ninth in the series of symposia initiated in 1967, it is difficult for me as, I am sure, for many of Ernst Bergmann's friends, co-workers and students, to be here without him. He was not only a great scientist and a beloved teacher, he was one of the most important founders of science in this country. To him we owe many institutes and the establishment here of many branches of science." Professor Dvoretzky: "Ernst Bergmann's greatness did not stem from one component overshadowing all the others. It was a multifaceted greatƯ ness consisting of the harmonious co~lescing of seemingly contrasting entities into a wonderful unity "

Book Research Awards Index

Download or read book Research Awards Index written by and published by . This book was released on 1988 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt: