Theory of Molecular Relaxation
Author | : Francis K. Fong |
Publisher | : John Wiley & Sons |
Total Pages | : 344 |
Release | : 1975 |
Genre | : Science |
ISBN | : |
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Author | : Francis K. Fong |
Publisher | : John Wiley & Sons |
Total Pages | : 344 |
Release | : 1975 |
Genre | : Science |
ISBN | : |
Author | : Biman Bagchi |
Publisher | : Oxford University Press |
Total Pages | : 331 |
Release | : 2012-01-30 |
Genre | : Science |
ISBN | : 0199863334 |
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.
Author | : Leonas Valkunas |
Publisher | : John Wiley & Sons |
Total Pages | : 414 |
Release | : 2013-10-04 |
Genre | : Science |
ISBN | : 3527653678 |
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.
Author | : Biman Bagchi |
Publisher | : OUP USA |
Total Pages | : 331 |
Release | : 2012-04-17 |
Genre | : Science |
ISBN | : 0199863326 |
The book captures recent and exciting developments in molecular relaxation in liquids.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1971 |
Genre | : |
ISBN | : |
Author | : Vladimir I. Ga?duk |
Publisher | : World Scientific |
Total Pages | : 664 |
Release | : 1999 |
Genre | : Science |
ISBN | : 9789810221232 |
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.
Author | : George H. Czerlinski |
Publisher | : |
Total Pages | : 336 |
Release | : 1966 |
Genre | : Mathematics |
ISBN | : |
Author | : James McConnell |
Publisher | : Cambridge University Press |
Total Pages | : 0 |
Release | : 2009-03-05 |
Genre | : Science |
ISBN | : 9780521107716 |
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.
Author | : Jozef Kowalewski |
Publisher | : CRC Press |
Total Pages | : 372 |
Release | : 2017-12-14 |
Genre | : Science |
ISBN | : 1351264591 |
Nuclear magnetic resonance (NMR) is widely used across many fields of science because of the rich data it produces, and some of the most valuable data come from studies of nuclear spin relaxation in solution. The first edition of this book, published more than a decade ago, provided an accessible and cohesive treatment of the field. The present second edition is a significant update, covering important new developments in recent years. Collecting relaxation theory, experimental techniques, and illustrative applications into a single volume, this book clarifies the nature of the phenomenon, shows how to study it and explains why such studies are worthwhile. Coverage ranges from basic to rigorous theory and from simple to sophisticated experimental methods. Topics include cross-relaxation, multispin phenomena, relaxation studies of molecular dynamics and structure and special topics such as relaxation in systems with quadrupolar nuclei, in paramagnetic systems and in long-living spin states. Avoiding overly demanding mathematics, the authors explain spin relaxation in a manner that anyone with a familiarity with NMR can follow. The focus is on illustrating and explaining the physical nature of relaxation phenomena. Nuclear Spin Relaxation in Liquids: Theory, Experiments and Applications, 2nd edition, provides useful supplementary reading for graduate students and is a valuable reference for NMR spectroscopists, whether in chemistry, physics or biochemistry.
Author | : Michael Cook |
Publisher | : |
Total Pages | : |
Release | : 1971 |
Genre | : |
ISBN | : |