Books in Atomic and molecular structure

11-20 of 51 results in All results

Inorganic Polymeric Glasses

• 1st Edition
• Volume 15
• October 22, 2013
• Richard C. Ropp
• English
• eBook 978-1-4832-9139-0

  9 7 8 - 1 - 4 8 3 2 - 9 1 3 9 - 0

The author describes a novel method of preparing hydrolysis-stable non-silicate glasses which is based on experimental work accomplished over the past twenty years. As such, the method is the beginning of a new approach to glass-making by the use of a molecularly-polymerizable precursor. The book elucidates the technical details required to produce such molecularly-polymerized glasses from carefully prepared inorganic molecular monomers. Essentially, only silicate-based glasses have been known to be stable, whereas non-silicate glasses could not be attributed with such properties. Such glasses have, therefore, not found widespread usage in industry. The new phosphate glasses described here exhibit stabilities superior to many of the silicate glasses. For example, the nuclear-waste glass shows no measurable loss at all in boiling water, something entirely foreign to the zinc borosilicate glasses developed for nuclear waste encapsulation in the U.S. by Battelle-Northwest. The exceptional stability of the new glasses is achieved by selecting an inorganic compound capable of being polymerized, and then causing it to polymerize in a proper manner, in the absence of chain-stoppers. To obtain glasses equal or superior in hydrolysis stability to silicate-based systems it is imperative to employ molecular polymerization in situ, starting from carefully prepared precursors of exact stoichiometric proportion. Researchers in glass and glass properties will find this volume extremely useful and those involved in organic polymers will be intrigued by the similarities and disparities of the two systems.

Structure of Molecules and Internal Rotation

• 1st Edition
• October 22, 2013
• San-Ichiro Mizushima
• Ernest M. Loebl
• English
• eBook 978-1-4831-9483-7

  9 7 8 - 1 - 4 8 3 1 - 9 4 8 3 - 7

Structure of Molecules and Internal Rotation reviews early studies on dihalogenoethanes. This book is organized into two parts encompassing 8 chapters that evaluate the Raman effect in ethane derivatives, the energy difference between rotational isomers, and the infrared absorption of ethane derivatives. Some of the topics covered in the book are the potential barrier to internal rotation; nature of the hindering potential; entropy difference between the rotational isomers; internal rotation in butane, pentane, and hexane; and internal rotation in long chain n-paraffins. Other chapters deal with the configuration of a polypeptide chain, as well as the sum rule and the product rule for rotational isomers. The normal vibrations of the 1,2-dihalogenoethanes are presented. The last chapters are devoted to the examination of the Raman effect, dielectric constant, and electron diffraction. The book can provide useful information to chemists, physicists, students, and researchers.

Rotational Spectra and Molecular Structure

• 1st Edition
• October 22, 2013
• James E. Wollrab
• Ernest M. Loebl
• English
• eBook 978-1-4831-9485-1

  9 7 8 - 1 - 4 8 3 1 - 9 4 8 5 - 1

Physical Chemistry, A Series of Monographs: Rotational Spectra and Molecular Structure covers the energy levels and rotational transitions. This book is divided into nine chapters that evaluate the rigid asymmetric top molecules and the nuclear spin statistics for asymmetric tops. Some of the topics covered in the book are the asymmetric rotor functions; rotational transition intensities; classes of molecules; nuclear spin statistics for linear molecules and symmetric tops; and classical appearance of centrifugal and coriolis forces. Other chapters deal with the energy levels and effects of centrifugal distortion, as well as the internuclear distance and moments of inertia. The discussion then shifts to the coriolis coupling effects on rotational constants and the perturbation treatment of vibration-rotational Hamiltonian. The last chapter is devoted to the examination of origin of the quadrupole interaction. The book can provide useful information to chemists, physicists, electrical engineers, students, and researchers.

Advances in Quantum Chemistry

• 1st Edition
• Volume 66
• July 23, 2013
• John R. Sabin + 1 more
• English
• eBook 978-0-12-407906-9

  9 7 8 - 0 - 1 2 - 4 0 7 9 0 6 - 9

Advances in Quantum Chemistry presents surveys of current topics in this rapidly developing field that has emerged at the cross section of the historically established areas of mathematics, physics, chemistry, and biology. It features detailed reviews written by leading international researchers. This volume focuses on the theory of heavy ion physics in medicine.

Silica Glass and Binary Silicate Glasses

• 1st Edition
• Volume 15A
• December 2, 2012
• O.V. Mazurin + 2 more
• English
• eBook 978-0-444-59896-7

  9 7 8 - 0 - 4 4 4 - 5 9 8 9 6 - 7

Physical Sciences Data, Volume 15: Handbook of Glass Data: Silica Glass and Binary Silicate Glasses, Part A presents information on the systems capable of forming glasses by cooling melts. This book provides data on the crystallization rates of glasses. Organized into six chapters, this volume begins with an overview of the melt properties for the glass-forming systems. This text then examines the notion of a component that is very significant for determining the number of components in each investigated glass. Other chapters consider the contents of several oxides of the same element but in different valent state as the reason to transfer a glass to the category of the increased number of components. This book discusses as well the analytical composition of glass. The final chapter deals with flotation method using tetrabromoethane and benzene mixture. This book is a valuable resource for glass specialists, chemists, engineers, scientists, and information science workers.

Stereochemical and Stereophysical Behaviour of Macrocycles

• 1st Edition
• Volume 2
• December 2, 2012
• Bozzano G Luisa
• English
• eBook 978-0-444-59700-7

  9 7 8 - 0 - 4 4 4 - 5 9 7 0 0 - 7

Stereochemical and Stereophysical Behavior of Macrocycles deals with the stereochemical and stereophysical properties of macrocyclic ligands and their coordination compounds. More specifically, the stereochemistry of metallic macrocyclics is discussed, along with the relationship between the thermodynamics and stereochemistry of macrocyclics and cryptates. The stereochemical aspects of the macrocycles of second and third row transition elements are also examined. Comprised of three chapters, this volume begins with an introduction to the stereochemistry of metallic macrocyclics as well as their structure, together with the conformation of their chemical rings and the steric effects of their coordination geometry. The next chapter considers the relationship between the thermodynamics and stereochemistry of macrocyclics and cryptates, with particular reference to the macrocyclic and cryptate effect. Cation-ligand interactions and solvent effects upon complex formation are described, along with macrocyclic and macrobicyclic ligands having different donor atoms. The final chapter is devoted to the stereochemical aspects of the macrocycles of transition metal ions, with additional comments on the stereochemistry of copper and nickel in unusual oxidation states. This book will be of interest to inorganic chemists.

Stereochemistry of Organometallic and Inorganic Compounds

• 1st Edition
• December 2, 2012
• Bozzano G Luisa
• English
• eBook 978-0-444-59732-8

  9 7 8 - 0 - 4 4 4 - 5 9 7 3 2 - 8

The authors of this fourth volume in the series have reviewed the making and breaking of chemical bonds in a sophisticated manner. In particular, new pressures brought about by environmental concerns, larger demands for the medical and pharmaceutical sectors and economics of the market place are forcing us into demanding greater stereochemical control and better product yields for chemical reactions capable of producing useful products. The chapters are written by leading experts in this area and give excellent overviews of the strengths and weaknesses of the various methodologies.In Chapter 1 newer discoveries in such tried and true methods of C-C bond formation as alkylations and aldol reactions of metal enolates are reviewed. The author of Chapter 2 discusses the ability of ab-initio methods to justify the results of empirical observations in the field of transition metal derivatives of small molecules such as N2, CO2 and similar small molecules. Having established the strengths and weaknesses of the various approaches to such theoretical calculations, a more interesting approach to these methods is pursued, namely, their ability to predict, in those areas in which they are particularly strong and reliable, chemical and stereochemical events and/or results in advance of experiments, later carried out in the laboratory. Finally, Chapter 3 reviews the stereochemical results of electron transfer reactions in mononuclear copper compounds.

Chains, Clusters, Inclusion Compounds, Paramagnetic Labels, and Organic Rings

• 1st Edition
• November 14, 2012
• P. Zanello
• English
• eBook 978-0-444-59705-2

  9 7 8 - 0 - 4 4 4 - 5 9 7 0 5 - 2

The role of stereochemistry to elucidate reaction patterns and physico-chemical properties in topical subjects ranging from inorganic to organic chemistry are treated in the fifth and final volume of this series. Detailed accounts are given to study: chaining in polyphosphates, electron-transfers in carbonyl clusters, inclusion of organometallic molecules in cyclodextrins, stereochemistry of paramagnetic metal complexes by labeling with nitroxyl radicals, stereocontrol in organic syntheses assisted by inorganic complexes.

Chemical Bonds - Better Ways to Make Them and Break Them

• 1st Edition
• November 12, 2012
• Bozzano G Luisa
• English
• eBook 978-0-444-59704-5

  9 7 8 - 0 - 4 4 4 - 5 9 7 0 4 - 5

Stereochemistry of Organometallic and Inorganic Compounds, Volume 3: Chemical Bonds—Better Ways to Make Them and Break Them focuses on the processes, methodologies, reactions, and approaches involved in the making and breaking of bonds. The selection first tackles heterometallic clusters in catalysis and steric and electronic effects on the photochemical reactions of metal-metal bonded carbonyls. Discussions focus on heterodinuclear metal carbonyls, hybrid catalysts prepared from molecular mixed-metal clusters, and heterometallic clusters in homogeneous catalysis. The book then examines the stereochemical aspects of organometallic clusters, including reactivity, dynamics, and the structures and rationalization of bonding in alkyne-substituted clusters. The publication takes a look at the stereochemistry of the Sakurai reaction, as well as intermolecular and intramolecular reactions, optically active allylsilanes, and other reactions. The selection is a highly recommended source of data for chemists and readers interested in the making and breaking of chemical bonds.

The Periodic System (1920 - 1923)

• 1st Edition
• Volume 4
• May 4, 2012
• J.R. Nielsen
• English
• eBook 978-0-08-087102-8

  9 7 8 - 0 - 0 8 - 0 8 7 1 0 2 - 8

Whilst volume 3 dealt primarily with the development of the quantum theory, ``The Periodic System'' contains in 2 parts the papers treating the application of the theory to the problem of atomic structure and the explanation of the periodic system of the chemical elements.