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Books > Science & Mathematics > Physics > Applied physics & special topics > Chemical physics
Thin films of conducting materials, such as metals, alloys and semiconductors are currently in use in many areas of science and technology, particularly in modern integrated circuit microelectronics that require high quality thin films for the manufacture of connection layers, resistors and ohmic contacts. These conducting films are also important for fundamental investigations in physics, radio-physics and physical chemistry. Physical Properties of Thin Metal Films provides a clear presentation of the complex physical properties particular to thin conducting films and includes the necessary theory, confirming experiments and applications. The volume will be an invaluable reference for graduates, engineers and scientists working in the electronics industry and fields of pure and applied science.
The purpose of this easy-to-use handbook is to provide a quick, accessible reference to nucleobase complexes. It describes these complexes with reference to methods of preparation, their characterization, and their toxicity and therapeutic indices. It lists the modes of coordination together with the relevant spectral data and major methods of investigation. This concise resource guide also includes data on the uncomplexed bases, such as solubility, pk, accepted structures in the solid state and solutions, and the natural occurrence of the base. Investigators in the fields of transition metal chemistry, biological inorganic chemistry and those working in medical laboratories will find this handbook indispensable.
The authors examine topics in modern physics and offer a unitary and original treatment of the fundamental problems of the dynamics of physical systems, as well as a description of the nuclear matter within a framework of general relativity. They show that some physical phenomena studied at two different resolution scales (e.g. microscale, cosmological scale), apparently with no connection between them, become compatible by means of the operational procedures, acting either as some "hidden" symmetries, or harmonic-type mappings. The book is addressed to the students, researchers and university/high school teachers working in the fields of mathematics, physics, and chemistry.
The present monograph attempts to unify these diverse and exciting new developments within a common framework. First, the physical principles underlying heterogenous electron-transfer processes are outlined in a concise way and are compared to the homogeneous counterpart. This analysis includes the notion of the Fermi level in liquids and solids as well as the distribution of electronic energy levels in solids and liquids. A comparison is made between the salient kinetic features of homogeneous and heterogeneous electron transfer reactions. This establishes the basis for the subsequent treatment of the transduction of excitation energy and photo-initiated electron transfer in organized molecular assemblies, such as micelles, vesicles and monolayers. Transmembrane redox processes are critically reviewed. Particular attention is given to semiconductor electrodes and particles. This includes a discussion of quantum size effects, the nature of space charge layers as well as surface states and the dynamics of charge carrier-induced redox reactions at the semiconductor solution interface. These processes are of fundamental importance in such diverse fields as photochromism, electrochromic displays, electroreprography and photography, information storage, photocatalysis, photodegradation of paints, and solar energy conversion.
Inorganic chemistry continues to generate much current interest due to its array of applications, ranging from materials to biology and medicine. Techniques in Inorganic Chemistry assembles a collection of articles from international experts who describe modern methods used by research students and chemists for studying the properties and structures of inorganic chemicals. Crystallography and diffraction methods The book begins by examining developments in small-molecule x-ray crystallography. It identifies some of the major advances, discusses current attitudes toward crystallography and its uses, and considers challenges and future prospects. It then examines how ab initio x-ray powder diffraction (XRPD) methods are used to determine structure, with discussions on metal pyrazolates, metal imidazolates, and metal pyrimidinolates. This is followed by a description of single crystal neutron diffraction, a powerful structural technique. The text highlights what can presently be achieved in neutron diffraction and discusses future applications of neutron scattering. Quantum chemistry Reflecting the popularity of density functional calculations, the book includes a chapter that focuses on quantum chemistry. It examines the latest computational techniques and describes how these techniques can be applied to solve a wide range of real-world problems encountered in the realm of inorganic chemistry and particularly in transition metal chemistry. It also explains the intelligent use of quantum chemical methods for the determination of molecular structure, reactivity, and spectra of coordination and organometallic compounds. Spectroscopy Lastly, the text explores important spectroscopic approaches. It first describes intermolecular nuclear Overhauser effect (NOE) NMR experiments and diffusion experiments, offering examples that demonstrate theoretical aspects of the methodology. The final chapter summarizes recent experimental and theoretical work on pressure effects on the d-d and luminescence spectra of transition metal complexes. Derived from select articles in Comments on Inorganic Chemistry, this volume provides a solid background in the array of techniques available in the researcher's toolkit.
Introduction to Crystal Growth: Principles and Practice teaches readers about crystals and their origins. It offers a historical perspective of the subject and includes background information whenever possible. The first section of this introductory book takes readers through the historical development and motivation of the field of crystal growth. With more than 40 years of experience in the field, the author covers nucleation, two-dimensional layer growth mechanism, defects in crystals, and screw dislocation theory of crystal growth. He also explains some aspects of the important subject of phase diagrams. The second section focuses on the experimental techniques of crystal growth. For practicing crystal growers, the book provides nuts-and-bolts techniques and tips. It discusses the major techniques categorized by solid-solid, liquid-solid, and vapor-solid equilibria and describes characterization techniques essential to measuring the quality of grown crystals.
The world faces significant challenges as population and consumption continue to grow while nonrenewable fossil fuels and other raw materials are depleted at ever-increasing rates. This volume takes a technical approach that addresses these issues using green design and analysis. It brings together innovative research, new concepts, and novel developments in the application of new tools for chemical and materials engineers. It is an immensely research-oriented, comprehensive, and practical work that focuses on the use of applied concepts to enhance productivity and sustainability in chemical engineering. It contains significant research that reports on new methodologies and important applications in the fields of chemical engineering as well as the latest coverage of chemical databases. Highlighting theoretical foundations, real-world cases, and future directions, the volume covers a diverse collection of the newest innovations in the field, including new research on atomic/nuclear physics, the barometric formula, amino acids in aqueous solutions, bioremediation and biotechnology, and more.
Brownian diffusion is the motion of one or more solute molecules in a sea of very many, much smaller solvent molecules. Its importance today owes mainly to cellular chemistry, since Brownian diffusion is one of the ways in which key reactant molecules move about inside a living cell. This book focuses on the four simplest models of Brownian diffusion: the classical Fickian model, the Einstein model, the discrete-stochastic (cell-jumping) model, and the Langevin model. The authors carefully develop the theories underlying these models, assess their relative advantages, and clarify their conditions of applicability. Special attention is given to the stochastic simulation of diffusion, and to showing how simulation can complement theory and experiment. Two self-contained tutorial chapters, one on the mathematics of random variables and the other on the mathematics of continuous Markov processes (stochastic differential equations), make the book accessible to researchers from a broad spectrum of technical backgrounds.
This book describes the theory of how processes on the unobservable molecular scale give rise to observable effects such as diffusion and electrical noise on the macroscopic or laboratory scale. It puts the modern theory into historical context, and features new applications, statistical mechanics derivations, and the mathematical background of the topic.
Quantum mechanical tunneling plays important roles in a wide range of natural sciences, from nuclear and solid-state physics to proton transfer and chemical reactions in chemistry and biology. Responding to the need for further understanding of multidimensional tunneling, the authors have recently developed practical methods that can be applied to multidimensional systems. Quantum Mechanical Tunneling in Chemical Physics presents basic theories, as well as original ones developed by the authors. It also provides methodologies and numerical applications to real molecular systems. The book offers information so readers can understand the basic concepts and dynamics of multidimensional tunneling phenomena and use the described methods for various molecular spectroscopy and chemical dynamics problems. The text focuses on three tunneling phenomena: (1) energy splitting, or tunneling splitting, in symmetric double well potential, (2) decay of metastable state through tunneling, and (3) tunneling effects in chemical reactions. Incorporating mathematics to explain basic theories, the text requires readers to have graduate-level math to grasp the concepts presented. The book reviews low-dimensional theories and clarifies their insufficiency conceptually and numerically. It also examines the phenomenon of nonadiabatic tunneling, which is common in molecular systems. The book describes applications to real polyatomic molecules, such as vinyl radicals and malonaldehyde, demonstrating the high efficiency and accuracy of the method. It discusses tunneling in chemical reactions, including theories for direct evaluation of reaction rate constants for both electronically adiabatic and nonadiabatic chemical reactions. In the final chapter, the authors touch on future perspectives.
Volume 3 of the 5-volume Quantum Nanochemistry presents the chemical reactivity throughout the molecular structure in general and chemical bonding in particular by introducing the bondons as the quantum bosonic particles of the chemical field, localization, from Huckel to Density Functional expositions, especially in relation to how chemical principles of electronegativity and chemical hardness decide the global chemical reactivity and interaction. The volume presents the fundamental and advanced concepts, principles, and models as well as their first and novel combinations and applications in quantum (physical) chemical theory of bonding, molecular reactivity, and aromaticity.
This new book focuses on nanomaterial development as well as investigations of combustion and explosion processes. It presents valuable information on the modeling of processes and on quantum chemical calculations and leading-edge research from around the world in this dynamic field, focusing on concepts above formal experimental techniques and theoretical methods of chemical physics for micro- and nanotechnologies. Also presented are non-linear kinetic appearances and their possible applications.
This book is dedicated to the field of conductive polymers, focusing on electrical interactions with biological systems. It addresses the use of conductive polymers as the conducting interface for electrical communications with the biological system, both in vitro and in vivo. It provides an overview on the chemistry and physics of conductive polymers, their useful characteristics as well as limitations, and technologies that apply conductive polymers for medical purposes. This groundbreaking resource addresses cytotoxicity and tissue compatibility of conductive polymers, the basics on electromagnetic fields, and commonly used experimental methods. Readers will also learn how cells are cultured in vitro with conductive polymers, and how conductive polymers and living tissues interact electrically. Throughout the contents, chapter authors emphasize the importance of conductive polymers in biomedical engineering and their potential applications in medicine.
All living organisms consist of soft matter. For this reason alone, it is important to be able to understand and predict the structural and dynamical properties of soft materials such as polymers, surfactants, colloids, granular matter and liquids crystals. To achieve a better understanding of soft matter, three different approaches have to be integrated: experiment, theory and simulation. This book focuses on the third approach - but always in the context of the other two.
This text contains a collection of lectures presented at the NATO ASI on "Frontiers of Chemical Dynamics" in Kemer, Turkey. Even though these articles include and sometimes emphasize the latest developments in corresponding research fields, they all share a common denominator, namely, they are intended as lectures for students at various levels as well as scientists entering a new field. It can, therefore, be used as a supplementary textbook for graduate courses on chemical dynamics. The various aspects of dynamical problems are discussed by experimentalists, theoreticians and those who carry out "numerical experiments", although it is not always easy to distinguish between theory and experiment. Most of the topics discussed offer different approaches to the same problem which will give an overall picture.
The Student Nonviolent Coordinating Committee formed in April 1960 to advance civil rights. With a tremendous human rights mission facing them, the founding SNCC members included communication and publicity as part of their initial purpose. This book provides a broad overview of these efforts from SNCC's birth in 1960 until the beginning of its demise in the late 1960s and examines the communication tools that SNCC leaders and members used to organize, launch, and carry out their campaign to promote civil rights throughout the 1960s. It specifically explores how SNCC workers used public relations to support and promote their platforms and to build a grassroots community movement; and how the organization later rejected these strategies for a radical and isolated approach.
Chemical reactions at high pressures are widely used in modern technology (supercritical extraction is an example). On the other hand, critical phenomena is the more advanced field in statistical mechanics. There are thousands of theoretical and experimental articles published by physicists, chemists, biologists, chemical engineers and material scientists, but, to our knowledge, there are no books which link these two phenomena together. This book sums up the results of 222 published articles, both theoretical and experimental, which will be of great benefit to students and all researchers working in this field.
Coulomb Excitations and Decays in Graphene-Related Systems provides an overview of the subject under the effects of lattice symmetries, layer numbers, dimensions, stacking configurations, orbital hybridizations, intralayer and interlayer hopping integrals, spin-orbital couplings, temperatures, electron/hole dopings, electric field, and magnetic quantization while presenting a new theoretical framework of the electronic properties and the electron-electron interactions together. This book presents a well-developed theoretical model and addresses important advances in essential properties and diverse excitation phenomena. Covering plenty of critical factors related to the field, the book also addresses the theoretical model which is applicable to various dimension-enriched graphene-related systems and other 2D materials, including layered graphenes, graphites, carbon nanotubes, silicene, and germanene. The text is aimed at professionals in materials science, physics, physical chemistry, and upper level students in these fields.
Over recent years electronic spectroscopy has developed significantly, with key applications in atmospheric chemistry, astrophysics and astrochemistry. High Resolution Electronic Spectroscopy of Small Molecules explores both theoretical and experimental approaches to understanding the electronic spectra of small molecules, and explains how this information translates to practice. Professors Geoffrey Duxbury and Alexander Alijah present the links between spectroscopy and photochemistry, and discuss theoretical treatments of the interaction between different electronic states. They provide a thorough discussion of experimental techniques, and explore practical applications. This book will be an indispensable reference for graduate students and researchers in physics and chemistry working on theoretical and practical aspects of electronic spectra, as well as atmospheric scientists, photochemists, kineticists and professional spectroscopists.
"Physics of Cryocrystals offers the first comprehensive treatment of molecular cryosolids. The book focuses on the distinctions between molecular and atomic cryocrystals, especially on the role of molecular rotation. Also considered are how cryocrystals are used for investigating the lattice dynamics of crystals with isotropic and anisotropic interactions, phase transitions, melting, different kinds of electronic excitations in insulators, and impurity effects. Detailed tables and graphs of molecular parameters, essential thermodynamic data, and lattice-dynamic data serve to make Physics of Cryocrystals an invaluable sourcebook." "Contents" Physics of Cryocrystals offers the first comprehensive treatment of molecular cryosolids. The book focuses on the distinctions between molecular and atomic cryocrystals, especially on the role of molecular rotation. Also considered are how cryocrystals are used for investigating the lattice dynamics of crystals with isotropic and anisotropic interactions, phase transitions, melting, different kinds of electronic excitations in insulators, and impurity effects. Detailed tables and graphs of molecular parameters, essential thermodynamic data, and lattice-dynamic data serve to make Physics of Cryocrystals an invaluable sourcebook.
The world faces significant challenges as population and consumption continue to grow while nonrenewable fossil fuels and other raw materials are depleted at ever-increasing rates. This volume takes a technical approach that addresses these issues using green design and analysis. It brings together innovative research, new concepts, and novel developments in the application of new tools for chemical and materials engineers. It is an immensely research-oriented, comprehensive, and practical work that focuses on the use of applied concepts to enhance productivity and sustainability in chemical engineering. It contains significant research that reports on new methodologies and important applications in the fields of chemical engineering as well as the latest coverage of chemical databases. Highlighting theoretical foundations, real-world cases, and future directions, the volume covers a diverse collection of the newest innovations in the field, including new research on atomic/nuclear physics, the barometric formula, amino acids in aqueous solutions, bioremediation and biotechnology, and more.
Charged Particle and Photon Interactions with Matter offers in-depth perspectives on phenomena of ionization and excitation induced by charged particle and photon interactions with matter in vivo and in vitro. This reference probes concepts not only in radiation and photochemistry, but also in radiation physics, radiation biochemistry, and radiation biology as well as recent applications in medicine and material, environmental, space, and biological science and engineering. It studies reports on the interactions of high-energy photons, specifically in the vacuum ultraviolet-soft X-ray region to offer fundamental information on the primary processes of the interactions of charged particles with matter.
In the 1970s, Density Functional Theory (DFT) was borrowed from physics and adapted to chemistry by a handful of visionaries. Now chemical DFT is a diverse and rapidly growing field, its progress fueled by numerous developing practical descriptors that make DFT as useful as it is vast. With 34 chapters written by 65 eminent scientists from 13 different countries, Chemical Reactivity Theory: A Density Functional View represents the true collaborative spirit and excitement of purpose engendered by the study and use of DFT. This work instructs readers on how concepts from DFT can be used to describe, understand, and predict chemical reactivity. Prior knowledge is not required as early chapters, written by the field's original pioneers, cover basic ground-state DFT and its extensions to time-dependent systems, excited states, and spin-polarized molecules. While the text is accessible to senior undergraduate or beginning graduate students, experienced researchers are certain to find interesting new insights in the perspectives presented by these seasoned experts. This remarkable one-of-a-kind resource- Provides authoritative accounts on aspects of the theory of chemical reactivity Describes various global reactivity descriptors, such as electronegativity, hardness, and electrophilicity Introduces and analyzes the usefulness of local reactivity descriptors such as Fukui, shape, and electron localization functions Offers an in-depth analysis of how chemical reactivity changes during different physicochemical processes or in the presence of external perturbations The book covers a gamut of related topics such as methods for determining atoms-in-molecules, population analysis, electrostatic potential, molecular quantum similarity, aromaticity, and biological activity. It also discusses the role of reactivity concepts in industrial and other practical applications. Whether you are searching for new products or new research projects, this is the ultimate guide for understanding chemical reactivity.
Since the turn of the 21st century, the field of electron molecule collisions has undergone a renaissance. The importance of such collisions in applications from radiation chemistry to astrochemistry has flowered, and their role in industrial processes such as plasma technology and lighting are vital to the advancement of next generation devices. Furthermore, the development of the scanning tunneling microscope highlights the role of such collisions in the condensed phase, in surface processing, and in the development of nanotechnology. Low-Energy Electron Scattering from Molecules, Biomolecules and Surfaces highlights recent progress in the theory and experiment of electron-molecule collisions, providing a detailed review of the current state of knowledge of electron molecule scattering-theoretical and experimental-for the general physicist and chemist interested in solving practical problems. In few other branches of science is the collaboration between theorists and experimentalists so topical. Covering advancements in practical problems, such as those met in plasma physics, microelectronics, nanolithography, DNA research, atmospheric chemistry, and astrochemistry, this book describes the formal general scattering theory and description of the experimental setup at a level the interested non-expert can appreciate.
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