Atlas Of Vibrational Spectra Of Liquid Crystals
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Atlas Of Vibrational Spectra Of Liquid Crystals
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Author : P Simova
language : en
Publisher: World Scientific
Release Date : 1988-08-01
Atlas Of Vibrational Spectra Of Liquid Crystals written by P Simova and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-08-01 with categories.
Readership: Condensed matter physicists and chemists. Keywords:Liquid Crystals;Raman Spectroscopy;Infrared Spectroscopy;Phase Transitions;Low Frequency Vibrations;Vibrational Spectra
Atlas Of Vibrational Spectra Of Liquid Crystals
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Author : Paraskeva Simova
language : en
Publisher: World Scientific
Release Date : 1988
Atlas Of Vibrational Spectra Of Liquid Crystals written by Paraskeva Simova and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Science categories.
This atlas is the first one in the field of vibrational spectroscopy of polyatomic molecules. It is divided into two paragraphs. The first deals with the theory of vibrational spectroscopy in a concise form and considers the most important spectroscopical parameters ? frequencies, bandshape and intensities. The second paragraph is dedicated to the infrared (2000?400 cm-1), far infrared (400?40 cm-1) and Raman (2000?10 cm-1) spectra of about hundred different mesomorphic materials with various molecular structure. The polarized IR spectra of the most important liquid crystals is also included. In the second paragraph the assignment of the IR bands to the corresponding intramolecular vibrations is also reported. Almost all spectra is registrated and analysed for the first time. The major important features are: 1. Registration and analysis (for the first time) of vibrational spectra of polyatomic molecules with mesomorphic phases; 2. Registration (for the first time) of vibrational spectra of polyatomic molecules with mesomorphic phase in polarized IR light. Polarized vibrational spectra are very important for clarification of the molecular structure; 3. Assignment (for the first time) of the IR bands of the most important liquid crystalline materials to the corresponding vibrations.
The Molecular Dynamics Of Liquid Crystals
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Author : G.R. Luckhurst
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The Molecular Dynamics Of Liquid Crystals written by G.R. Luckhurst and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Liquid-crystalline phases are now known to be formed by an ever growing range of quite diverse materials, these include those of low molecular weight as well as the novel liquid-crystalline polymers, such phases can also be induced by the addition of a solvent to amphiphilic systems leading to lyotropic liquid crystals. Irrespective of the structure of the constituent molecules these numerous liquid-cl)'Stailine phases are characterised by their long range orientational order. In addition certain phases exhibit elements of long range positional order. Our understanding, both experimental and theoretical, at the molecular level of the static behaviour of these fascinating and important materials is now well advanced. In contrast the influence of the long range order; both orientational and positional, on the molecular dynamics in liquid Cl)'Stais is less well understood. In an attempt to address this situation a NATO Advanced Study Institute devoted to liquid ctystal dynamics was held at n Ciocco, Barga, Italy in September 1989. This brought together experimentalists and theoreticians concerned with the various dynamical processes occurring in all liquid crystals. The skills of the participants was impressively wide ranging; they spanned the experimental techniques used in the study of molecular dynamics, the nature of the systems investigated and the theoretical models employed to understand the results. While much was learnt it was also recognised that much more needed to be done in order to advance our understanding of molecular dynamics in liquid Cl)'Stais.
Physics Of Liquid Crystalline Materials
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Author : Chor-San Heng Khoo
language : en
Publisher: CRC Press
Release Date : 1991-12-16
Physics Of Liquid Crystalline Materials written by Chor-San Heng Khoo and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-12-16 with Science categories.
This work is based on lectures delivered at the "summer school" held in October 1988. Papers deal with microscopic properties, collective phenomena (elastic properties, hydrodynamics, linear and nonlinear optics . . . ), and such diverse topics as NMR studies of liquid crystals, orientational disorder and dynamics, rheology of layered liquid crystals, light scattering. Minimal index. Annotation copyrighted by Book News, Inc., Portland, OR
Liquid Crystals And Their Computer Simulations
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Author : Claudio Zannoni
language : en
Publisher: Cambridge University Press
Release Date : 2022-07-28
Liquid Crystals And Their Computer Simulations written by Claudio Zannoni and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-28 with Science categories.
A comprehensive introduction to liquid crystals and their computer simulations suitable for students, researchers and industrial scientists.
Nuclear Magnetic Resonance Spectroscopy Of Liquid Crystals
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Author :
language : en
Publisher:
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Nuclear Magnetic Resonance Spectroscopy Of Liquid Crystals written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Nuclear Magnetic Resonance Spectroscopy Of Liquid Crystals
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Author : Ronald Y. Dong
language : en
Publisher: World Scientific
Release Date : 2010
Nuclear Magnetic Resonance Spectroscopy Of Liquid Crystals written by Ronald Y. Dong and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Science categories.
This edited volume provides an extensive overview of how nuclear magnetic resonance can be an indispensable tool to investigate molecular ordering, phase structure, and dynamics in complex anisotropic phases formed by liquid crystalline materials. The chapters, written by prominent scientists in their field of expertise, provide a state-of-the-art scene of developments in liquid crystal research. The fantastic assortment of shape anisotropy in organic molecules leads to the discoveries of interesting new soft materials made at a rapid rate which not only inject impetus to address the fundamental physical and chemical phenomena, but also the potential applications in memory, sensor and display devices. The review volume also covers topics ranging from solute studies of molecules in nematics and biologically ordered fluids to theoretical approaches in treating elastic and viscous properties of liquid crystals. This volume is aimed at graduate students, novices and experts alike, and provides an excellent reference material for readers interested in the liquid crystal research. It is, indeed, a reference book for every science library to have. Sample Chapter(s). Chapter 1: Novel Strategies for Solving Highly Complex NMR Spectra of Solutes in Liquid Crystals (1,464 KB). Contents: Novel Strategies for Solving Highly Complex NMR Spectra of Solutes in Liquid Crystals (E E Burnell et al.); Analytical Potentials of Natural Abundance Deuterium NMR Spectroscopy in Achiral Thermotropics and Polypeptide Chiral Oriented Solvents (P Lesot & C Aroulande); Noble Gas Probes in NMR Studies of Liquid Crystals (J Jokisaari); Bicelles OCo A Much Needed Magic Wand to Study Membrane Proteins by NMR Spectroscopy (R Soong et al.); Advances in Proton NMR Relaxometry in Thermotropic Liquid Crystals (P J Sebastiuo et al.); Deuterium NMR Study of Magnetic Field Distortions in Ferroelectric Mesogens (R Y Dong); Deuteron NMR Study of the Effects of Random Quenched Disorder in 12CB Silica Dispersions (D Finotello & V Pandya); Dynamics of Liquid Crystals by Means of Deuterium NMR Relaxation (C A Veracini & V Domenici); Translational Self-Diffusion Measurements in Thermotropics by Means of Statistic Field Gradients NMR Diffusometry (M Cifelli); Deuterium NMR Studies of Static and Dynamic Director Alignment for Low Molar Mass Nematics (A Sugimura & G R Luckhurst); Viscoelastic Properties of Liquid Crystals: Statistical-Mechanical Approaches and Molecular Dynamics Simulations (A V Zakharov); Carbon-13 NMR Studies of Thermotropic Liquid Crystals (R Y Dong); A Combined DFT and Carbon-13 NMR Study of a Biaxial Bent-Core Mesogen (A Marini et al.). Readership: Chemists, physicists and material scientists. In particular, NMR spectroscopists.
Nuclear Magnetic Resonance Of Liquid Crystals
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Author : J.W. Emsley
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Nuclear Magnetic Resonance Of Liquid Crystals written by J.W. Emsley and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The liquid crystalline state has been known for about a century and has been studied by many techniques. Nuclear magnetic resonance has been used to study mesophases for thirty years, but it has been in very recent years that advances in this form of spectroscopy have led to a rapid growth in its applications to the study both of liquid crystals and of solutes dissolved in them. It has become apparent that no other method of studying liquid crystals can yield such a wealth of data and it is unrivalled as a means of probing the behaviour of the molecules in mesophases. There has also been a steady increase in the study of the shape of small molecules dissolved in liquid crystals via the analysis of their NMR spectrum. In fact, the study of solutes was until recently regarded as a separate activity to the study of liquid crystals themselves, but this artificial division arose only from the gap between the large amount of information that could be derived from the spectrum of a small molecule and the rather meagre data set obtainable from the spectra of liquid crystals. This gap has, however, narrowed and it is now possible to derive a very detailed picture of the structure and orientational ordering of the large molecules typical of those which form liquid crystals. There has also been a rapid growth of interest in the liquid crystalline state.
Nuclear Magnetic Resonance Of Liquid Crystals
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Author : Ronald Y. Dong
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Nuclear Magnetic Resonance Of Liquid Crystals written by Ronald Y. Dong and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Intended for researchers and students in physics, chemistry and materials science, this book provides the necessary background information and sufficient mathematical and physical detail to study the current research literature. The book begins with a survey of liquid crystal phases and field effects, together with an introduction to the basic physics of nuclear magnetic resonance. It then discusses orientational ordering and molecular field theories for various liquid crystal molecules and nmr studies of uniaxial and biaxial phases. Subsequent chapters consider spin relaxation processes and rotational, translational, and internal molecular dynamics of liquid crystals. The final chapter discusses two-dimensional and multiple- quantum nmr spectroscopies and their application in elucidating liquid crystal properties. This second edition, updated throughout, incorporates many new references and includes new mathematical appendices.
Time Resolved Vibrational Spectroscopy V
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Author : Hiroaki Takahashi
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Time Resolved Vibrational Spectroscopy V written by Hiroaki Takahashi and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The work contained in this volume is representative of the presentations made by the participants at the Fifth International Conference on Time-Resolved Vibra tional Spectroscopy, which was held at Waseda University, Tokyo, Japan, from June 3 to 7, 1991. The conference was the fifth in a biennial series initiated in 1982 by Prof. George H. Atkinson (University of Arizona) at Lake Placid, USA, and subsequently convened by Prof. Alfred Laubereau (University of Bayreuth, Germany) and Dr. Manfred Stockburger (Max-Planck Institut, G6ttingen, Ger many) at Bayreuth-BischofsgrUn, Germany, in 1985, by Prof. Joop D.W. Van Voorst (University of Amsterdam) at Amersfoort, The Netherlands, in 1987, and by Prof. Thomas G. Spiro (princeton University) at Princeton, USA, in 1989. The purpose of the conference is to bring together researchers from various disciplines and provide a forum for discussion of the latest advances in time resolved spectroscopies concerned with transient vibrational phenomena and their application to fundamental scientific and engineering studies. The 167 registered participants, including 46 students, from 14 different countries, represented a wide range of scientific disciplines, and clearly indicated that the field continues to expand into new areas of physics, chemistry, biology, and materials science. Their enthusiasm and the originality and quality of the contributions presented produced a very successful and enjoyable conference.