Molecular Relaxation in Liquids

Molecular Relaxation in Liquids

Author: Biman Bagchi

Publisher: Oxford University Press

Published: 2012-01-30

Total Pages: 331

ISBN-13: 0199863334

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This book brings together many different relaxation phenomena in liquids under a common umbrella and provides a unified view of apparently diverse phenomena. It aligns recent experimental results obtained with modern techniques with recent theoretical developments. Such close interaction between experiment and theory in this area goes back to the works of Einstein, Smoluchowski, Kramers' and de Gennes. Development of ultrafast laser spectroscopy recently allowed study of various relaxation processes directly in the time domain, with time scales going down to picosecond (ps) and femtosecond (fs) time scales. This was a remarkable advance because many of the fundamental chemical processes occur precisely in this range and was inaccessible before the 1980s. Since then, an enormous wealth of information has been generated by many groups around the world, who have discovered many interesting phenomena that has fueled further growth in this field. As emphasized throughout the book, the seemingly different phenomena studied in this area are often closely related at a fundamental level. Biman Bagchi explains why relatively small although fairly sophisticated theoretical tools have been successful in explaining a wealth of experimental data at a semi-phenomenological level.


Molecular Relaxation in Liquids

Molecular Relaxation in Liquids

Author: Biman Bagchi

Publisher: OUP USA

Published: 2012-04-17

Total Pages: 331

ISBN-13: 0199863326

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The book captures recent and exciting developments in molecular relaxation in liquids.


Encyclopedia of Glass Science, Technology, History, and Culture Two Volume Set

Encyclopedia of Glass Science, Technology, History, and Culture Two Volume Set

Author: Pascal Richet

Publisher: John Wiley & Sons

Published: 2021-02-05

Total Pages: 1568

ISBN-13: 1118799399

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This Encyclopedia begins with an introduction summarizing itsscope and content. Glassmaking; Structure of Glass, GlassPhysics,Transport Properties, Chemistry of Glass, Glass and Light,Inorganic Glass Families, Organic Glasses, Glass and theEnvironment, Historical and Economical Aspect of Glassmaking,History of Glass, Glass and Art, and outlinepossible newdevelopments and uses as presented by the best known people in thefield (C.A. Angell, for example). Sections and chapters arearranged in a logical order to ensure overall consistency and avoiduseless repetitions. All sections are introduced by a briefintroduction and attractive illustration. Newly investigatedtopics will be addresses, with the goal of ensuring that thisEncyclopedia remains a reference work for years to come.


Cross-relaxation and Cross-correlation Parameters in NMR

Cross-relaxation and Cross-correlation Parameters in NMR

Author: Daniel Canet

Publisher: Royal Society of Chemistry

Published: 2017-10-20

Total Pages: 336

ISBN-13: 1849739137

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This work will provide a detailed account of cross-relaxation and cross-correlation which would be timely and fill a gap in the present NMR literature for the analytical scientist.


Dielectric Relaxation and Dynamics of Polar Molecules

Dielectric Relaxation and Dynamics of Polar Molecules

Author: Vladimir I. Ga?duk

Publisher: World Scientific

Published: 1999

Total Pages: 664

ISBN-13: 9789810221232

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The topics covered in this book provide a qualitative and sometimes quantitative classic description of the wide-band 0-THz dielectric spectra of polar liquids, molecular libration-rotation (which is the reason for dielectric loss and absorption of electromagnetic waves), simple molecular models differing by the intermolecular-potential profiles, and present a comparison between the theoretical and experimental dependencies and derivation of the main results. A new feature is the application of a number of analytical models to different substances, including strongly absorbing nonassociating liquids, liquid water, water bound by macromolecules, and gas-like liquids. The presentation of the theory in this book is also new. It is based on the dynamic method in which the Brownian reorientations are considered implicitly, without direct solution of stochastic equations. This approach simplifies the theory. Senior students and experimentalists will find many of the results valuable.


Relaxation Phenomena

Relaxation Phenomena

Author: Wolfgang Haase

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 732

ISBN-13: 3662097478

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The authors describe the electric, magnetic and other relaxational processes in a wide spectrum of materials: liquid crystals, molecular magnets, polymers, high-Tc superconductors and glasses. The book summarizes the phenomenological fundamentals and the experimental methods used. A detailed description of molecular and collective dynamics in the broad range of liquid crystals is presented. Magnetic systems, high-Tc superconductors, polymers and glasses are an important subject of matter. It is shown that the researchers working on relaxation processes in different fields of materials sciences are dealing with the same physical fundamentals, but are sometimes using slightly different terms. The book is addressed to scientists, engineers, graduate and undergraduate students, experimentalists and theorists in physics, chemistry, materials sciences and electronic engineering. Many internationally well known experts contribute to it.


Molecular Excitation Dynamics and Relaxation

Molecular Excitation Dynamics and Relaxation

Author: Leonas Valkunas

Publisher: John Wiley & Sons

Published: 2013-10-04

Total Pages: 414

ISBN-13: 3527653678

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This work brings together quantum theory and spectroscopy to convey excitation processes to advanced students and specialists wishing to conduct research and understand the entire fi eld rather than just single aspects. Written by experienced authors and recognized authorities in the field, this text covers numerous applications and offers examples taken from different disciplines. As a result, spectroscopists, molecular physicists, physical chemists, and biophysicists will all fi nd this a must-have for their research. Also suitable as supplementary reading in graduate level courses.


Water in Biological and Chemical Processes

Water in Biological and Chemical Processes

Author: Biman Bagchi

Publisher: Cambridge University Press

Published: 2013-11-14

Total Pages: 383

ISBN-13: 1107037298

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A unified overview of the dynamical properties of water and its unique and diverse role in biological and chemical processes.


The Theory of Nuclear Magnetic Relaxation in Liquids

The Theory of Nuclear Magnetic Relaxation in Liquids

Author: James McConnell

Publisher: Cambridge University Press

Published: 2009-03-05

Total Pages: 0

ISBN-13: 9780521107716

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This book provides a complete exposition of the theory of nuclear magnetic relaxation caused by the thermal motion of the molecule containing the relaxing nucleus. The author begins by defining the physical quantities encountered in nuclear magnetic resonance studies and surveying pioneering investigations in the field. Nuclear magnetic relaxation by scalar, dipolar, quadrupolar and spin-rotational interactions and by anisotropic chemical shift are then examined in detail. Relaxation rates are expressed in terms of spectral densities, and the values of the spectral densities for various molecular shapes are calculated by random walk or Brownian motion dynamics. The text should be within the grasp of readers who have taken undergraduate courses in electromagnetic theory and in classical and quantum mechanics, although topics in these fields of particular relevance are to be found in appendices. This book will be of value to postgraduate students and research workers using n.m.r. in physics and physical chemistry departments, and by scientists in industrial and medical research.


Absorption and Dispersion of Ultrasonic Waves

Absorption and Dispersion of Ultrasonic Waves

Author: Karl F. Herzfeld

Publisher: Academic Press

Published: 2013-10-22

Total Pages: 554

ISBN-13: 1483275701

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Absorption and Dispersion of Ultrasonic Waves focuses on the influence of ultrasonics on molecular processes in liquids and gases, including hydrodynamics, energy exchange, and chemical reactions. The book first offers information on the Stokes-Navier equations of hydrodynamics, as well as equations of motion, viscosity, formal introduction of volume viscosity, and linearized wave equation for a nonviscous fluid. The manuscript then ponders on energy exchange between internal and external degrees of freedom as relaxation phenomenon; effect of slow energy exchange on sound propagation; different ways of evaluating the dispersion curve; and exact calculation of absorption and dispersion. The text examines the effects of chemical reactions, thermodynamic theory of relaxation, and mixtures. The book also evaluates the absorption of high intensity sound waves, ratio of relaxation absorption to classical absorption at maximum, and gas mixtures. Discussions also focus on translational relaxation in monatomic gases, linear triatomic molecules, and results for rotational relaxation. The manuscript is a dependable source of data for readers interested in the absorption and dispersion of ultrasonic waves.