Download or read book Far infrared Vibration rotation tunneling Spectroscopy of Cyclic Water Clusters written by Jeffrey Duane Cruzan and published by . This book was released on 1997 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibration rotation tunneling Spectroscopy of Water Clusters written by Heather Ann Harker and published by . This book was released on 2004 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibration rotation tunneling Dynamics in Small Water Clusters written by and published by . This book was released on 1992 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibration rotation tunneling Dynamics in Small Water Clusters written by Nick Pugliano and published by . This book was released on 1992 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Spectroscopy and Quantum Dynamics written by Roberto Marquardt and published by Elsevier. This book was released on 2020-09-18 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Spectroscopy and Quantum Dynamics, an exciting new work edited by Professors Martin Quack and Roberto Marquardt, contains comprehensive information on the current state-of-the-art experimental and theoretical methods and techniques used to unravel ultra-fast phenomena in atoms, molecules and condensed matter, along with future perspectives on the field. Contains new insights into the quantum dynamics and spectroscopy of electronic and nuclear motion Presents the most recent developments in the detection and interpretation of ultra-fast phenomena Includes a discussion of the importance of these phenomena for the understanding of chemical reaction dynamics and kinetics in relation to molecular spectra and structure
Download or read book Inorganic Chemistry written by Rory Reid and published by Scientific e-Resources. This book was released on 2018-01-11 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic chemistry deals with the synthesis and behavior of inorganic and organometallic compounds. This field covers all chemical compounds except the myriad organic compounds which are the subjects of organic chemistry. The distinction between the two disciplines is far from absolute, as there is much overlap in the subdiscipline of organometallic chemistry. Today our understanding of chemical bonding, molecular reactivities, and various other fundamental chemical problems rests heavily on our knowledge of the detailed behaviour of electrons in atoms and molecules. This book describes in detail some of the basic principles, methods and results of quantum chemistry that lead to our understanding of electron behaviour. The basic aspects of inorganic chemistry are presented significantly in this book. Many applications and practical problems are described. The order of the techniques included is conventional and would be liked by students. The chapters have been arranged in a conventional way, as it may be easy for students to pass from one to another chapter with continuity.
Download or read book Peptide Self Assembly and Engineering written by Xuehai Yan and published by John Wiley & Sons. This book was released on 2024-02-09 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peptide Self-Assembly and Engineering State-of-the-art research in peptide self-assembly, with coverage of fundamental aspects of how peptides self-assemble and an extensive number of applications Peptide Self-Assembly and Engineering: Fundamentals, Structures, and Applications (2V set) covers the latest progresses in the field of peptide self-assembly and engineering, including the fundamental principles of peptide self-assembly, new theory of nucleation and growth, thermodynamics and kinetics, materials design rules, and precisely controlled structures and unique functions. The broad contents from this book enable readers to obtain a systematical and comprehensive knowledge in the field of peptide self-assembly and engineering. Contributed by the leading scientists and edited by a highly qualified academic and an authority in the field, Peptide Self-Assembly and Engineering includes information on: Emerging areas in peptide assembly, such as immune agents, bioelectronics, energy conversion, flexible sensors, biomimetic catalysis, and more Existing applications in biomedical engineering, nanotechnology, and photoelectronics, including tissue engineering, drug delivery, and biosensing devices History of peptide self-assembly for design of functional materials and peptides’ unique mechanical, optical, electronic, and biological properties Various solvent conditions, such as pH, ionic strength, and polarity, that can affect the structure and stability of peptide assemblies A very comprehensive reference covering the latest progresses in the field of peptide self-assembly and engineering, Peptide Self-Assembly and Engineering is an essential resource for all scientists performing research intersecting with the subject, including biochemists, biotechnologists, pharmaceutical chemists, protein chemists, materials scientists, and medicinal chemists.
Download or read book Progress in Experimental and Theoretical Studies of Clusters written by Tamotsu Kondow and published by World Scientific. This book was released on 2003 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cluster which is an ensemble of two thousands of atoms or molecules, has emerged as a completely new class of materials at the frontier of materials science. The frontier of cluster science extends so rapidly that the map of the science is renewed day by day. In order to provide basic knowledge and recent information on this growing field, 14 world-renowned scientists who are actively involved experimentally and theoretically in cluster science have written this book, which is concise, comprehensive, suitable for students at both the undergraduate and the graduate level, as well as people who work outside cluster science. Contents: Survey of Structure, Energetics and Dynamics of Clusters (R S Berry & R D Levine); Molecular and Ionic Cluster Spectroscopy (J M Lisy); Physical and Chemical Properties of Metal Clusters in the Gas Phase and on Solid Surfaces (A Terasaki); Femtosecond Spectroscopy on Metal Clusters (a Vajda et al.); Core Level Excitation of Clusters (E Rhl); Laboratory Experiments on Single Levitated Aerosol Particles (T Leisner); Cluster Formation from Liquid Phase (F Mafun(r)). Readership: Researchers in atomic physics, molecular physics and physical chemistry."
Download or read book Conceptual Perspectives in Quantum Chemistry written by Jean-Louis Calais and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rivers run into the sea, yet the sea is not full Ecclesiastes What is quantum chemistry? The straightforward answer is that it is what quan tum chemists do. But it must be admitted, that in contrast to physicists and chemists, "quantum chemists" seem to be a rather ill-defined category of scientists. Quantum chemists are more or less physicists (basically theoreticians), more or less chemists, and by large, computationists. But first and foremost, we, quantum chemists; are conscious beings. We may safely guess that quantum chemistry was one of the first areas in the natural sciences to lie on the boundaries of many disciplines. We may certainly claim that quantum chemists were the first to use computers for really large scale calculations. The scope of the problems which quantum chemistry wishes to answer and which, by its unique nature, only quantum chemistry can answer is growing daily. Retrospectively we may guess that many of those problems meet a daily need, or are say, technical in some sense. The rest are fundamental or conceptual. The daily life of most quantum chemists is usually filled with grasping the more or less technical problems. But it is at least as important to devote some time to the other kind of problems whose solution will open up new perspectives for both quantum chemistry itself and for the natural sciences in general.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1997 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Complexes in Earth s Planetary Cometary and Interstellar Atmospheres written by Andrei A. Vigasin and published by World Scientific. This book was released on 1998 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces systematically the concept of weakly-bound complexes into the broad field of atmospheric sciences. To fill up the gap between our rapidly expanding knowledge of the individual properties of Van der Waals and hydrogen-bonded molecules, and our understanding of their role in the atmospheric processes, an ensemble of related topics are covered by a team of expert co-authors. The general properties of the weakly bound molecular complexes (or ?clusters?) are discussed, as well as their distribution in the planetary atmospheres. Collision-induced and dimeric absorption and emission are considered in the context of atmospheric spectroscopy. The advanced experimental techniques which enable us to study the spectroscopic features of molecular complexes in the gas phase, or which are adsorbed, are reviewed. The role of molecular complexes in the cometary atmosphere, the Earth mesosphere, and the atmospheres of the giant planets and some of their satellites are also discussed in detail.
Download or read book Water Cluster deuterium Oxide Collisions written by David Wallace Kaiser and published by . This book was released on 1993 with total page 212 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 1998 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Vibrational Predissociation Spectroscopy of Water Clusters by the Crossed Laser Molecular Beam Technique written by and published by . This book was released on 1981 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water clusters formed in a molecular beam are predissociated by tunable, pulsed, infrared radiation in the frequency range 2900~3750 cm−1. The recoiling fragments are detected off axis from the molecular beam using a rotatable mass spectrometer. Arguments are presented which show that the measured frequency dependent signal at a fixed detector angle is proportional to the absorption spectrum of the clusters. It is found that the spectra of clusters containing three or more water molecules are remarkably similar to the liquid phase spectrum. Dynamical information on the predissociation process is obtained from the velocity distribution of the fragments. An upper limit to the excited vibrational state lifetime of ~1 microsecond is observed for the results reported here. The most probable dissociation process concentrates the available excess energy into the internal motions of the fragment molecules. Both the time scale and translational energy distribution are consistent with the qualitative predictions of current theoretical models for cluster predissociation. From adiabatic dissociation trajectories and Monte Carlo simulations it is seen that the strong coupling present in the water polymers probably invalidates the simpler "diatomic" picture formulations of cluster predissociation. Instead, the energy can be extensively shared among the intermolecular motions in the polymer before dissociation. Comparison between current intermolecular potentials describing liquid water and the observed frequencies is made in the normal mode approximation. The inability of any potential to predict the gross spectral features (the number of bands and their observed frequency shift from the gas phase monomer) suggests that substantial improvement in the potential energy functions are possible, but that more accurate methods of solving the vibrational wave equation are necessary before a proper explanation of the spectral fine structure is possible. The observed differences between the dimer and larger polymers (trimer-hexamer) indicate a dramatic change in the hydrogen bonding, which is best explained as arising from the non-additive effects present when a water molecule is both donating and accepting a hydrogen bond. This difference between dimer and trimer also rationalizes the previous disagreement between potential functions based on condensed phase properties (where the water molecule is interacting with multiple neighbors) and those fit to imperfect gas or dimer properties which sample only the isolated pair potential. The data support an interpretation of the hydrogen bonded O-H stretching fundamental region as arising from a homogeneous broadening (not necessarily a result of the predissociation) whose width is characteristic of the hydrogen bond itself and not the sum of distinct bonding geometries. This is different from some previous theories of the water infrared absorption spectrum which assign each band to water molecules bound to different numbers of neighboring molecules.
Download or read book Intermolecular Potential Energy Surfaces from Far Infrared Laser Spectroscopy of Weakly Bound Complexes written by Matthew John Elrod and published by . This book was released on 1994 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Molecular Vibrations and Collision Dynamics written by and published by Elsevier. This book was released on 1998-09-25 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on molecular clusters, bound by van der Waals interactions and hydrogen bonds. Twelve chapters review a wide range of recent theoretical and experimental advances in the areas of cluster vibrations, spectroscopy, and reaction dynamics. The authors are leading experts, who have made significant contributions to these topics. The first chapter describes exciting results and new insights in the solvent effects on the short-time photo fragmentation dynamics of small molecules, obtained by combining heteroclusters with femtosecond laser excitation. The second is on theoretical work on effects of single solvent (argon) atom on the photodissociation dynamics of the solute H2O molecule. The next two chapters cover experimental and theoretical aspects of the energetics and vibrations of small clusters. Chapter 5 describes diffusion quantum Monte Carlo calculations and non additive three-body potential terms in molecular clusters. The next six chapters deal with hydrogen-bonded clusters, reflecting the ubiquity and importance of hydrogen-bonded networks. The final chapter provides the microscopic theory of the dynamics and spectroscopy of doped helium cluster, highly quantum systems whose unusual properties have been studied extensively in the past couple of years.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
