Organic Crystals And Molecules
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Organic Crystals I Characterization
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Author : Norbert Karl
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Organic Crystals I Characterization written by Norbert Karl 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.
Lattice defects of organic molecular crystals affect their optical or electrical properties by changing the local energy structure. Lattice defects also playa very important role in the chemical and physical properties, for example, as an active site of a catalyst or an initiating point of a solid state reaction. However, very little has been reported on the defect structure of real organic crystals. In the past ten years it became clear that the origin and the structure of the defects depend on the geometrical and chemical nature of the building units of the crystal, the molecules. Molecular size, form and anisotropy, charge distribution, etc. cause the characteristic structure of the defect. Accordingly, a defect structure found in one compound may not be found in others. The defect structure of an organic crystal cannot be defined solely by the displacement of the molecular center from the normal lattice site. A rotational displacement of a molecule is frequently accompanied by a parallel shift of the molecular center. In addition to the usual geometrical crystallographic defects, chemical defects are important too which originate, for example, from differences in the substitution sites of molecules carrying side groups. In order to reveal such defect structures, direct imaging of molecules by high resolution electron microscopy is the only direct method.
Organic Crystals And Molecules
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Author : John Monteath Robertson
language : en
Publisher:
Release Date : 1953
Organic Crystals And Molecules written by John Monteath Robertson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Science categories.
Molecular Crystals And Molecules
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Author : A Kitaigorodsky
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Molecular Crystals And Molecules written by A Kitaigorodsky and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
Molecular Crystals and Molecules deals with some of the problems of molecular crystallography and certain aspects of molecular structure. This book is composed of eight chapters that specifically cover the significant progress of conformational research. The opening chapter describes the structure of crystals considering the close-packing principle, disorder elements, and binary systems. The next two chapters examine the calculation of crystal lattice energy and dynamics. These topics are followed by discussions on the molecular movement, structural, and thermodynamic aspects of crystals. The final chapters look into the parameters for conformational calculations of molecules, macromolecules, and biopolymers. This book will be of great value to physical chemists and researchers who are interested in crystal and molecular structure.
Organic Crystals And Molecules Theory Of X Ray Structure Analysis Withapplications To Organic Chemistry
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Author : John Monteath Robertson
language : en
Publisher:
Release Date : 1953
Organic Crystals And Molecules Theory Of X Ray Structure Analysis Withapplications To Organic Chemistry written by John Monteath Robertson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with categories.
Organic Molecular Crystals
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Author : E. Silin̦š
language : en
Publisher: American Institute of Physics
Release Date : 1994
Organic Molecular Crystals written by E. Silin̦š and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Science categories.
Market: Specialists, researchers, and students in solid-state physics, materials science, electronics, chemical physics, organic and physical chemistry, and molecular biophysics. This monograph focuses on the interaction processes of excitons and charge carriers with the local environment, including the polarization and localization phenomena and the formation of polaronic quasi- particles. Transport phenomena are discussed and directly correlated with interaction dynamics, which actually determine the time- and temperature-dependent transiton of charge carriers and excitons from a coherent to a diffusive mode of motion.
Crystal Engineering
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Author : Gautam R. Desiraju
language : en
Publisher: Elsevier Publishing Company
Release Date : 1989
Crystal Engineering written by Gautam R. Desiraju and has been published by Elsevier Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Science categories.
Hardbound. A substantial amount of recent research has revealed that an understanding of weak intermolecular interactions is a most important priority in the chemical sciences today. One of the many advantages to ensue from such an understanding is that improved methods for the prediction and design of organic crystal structures have become possible. Concurrently, strategies for crystal engineering have advanced to such an extent to warrant the publication of this book in which the author reviews and evaluates past developments, and comments on future possibilities. The book is intended for three distinct groups of scientists: organic chemists and materials scientists who are now coordinating their efforts in designing molecular crystals for a variety of physical and chemical applications; physical and theoretical chemists who are concerned with intermolecular interactions in organic solids; crystallographers who attempt to search for patterns in crysta
Nonlinear Optical Properties Of Organic Molecules And Crystals V1
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Author : D.S. Chemla
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Nonlinear Optical Properties Of Organic Molecules And Crystals V1 written by D.S. Chemla and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
Nonlinear Optical Properties of Organic Molecules and Crystals, Volume 1 discusses the nonlinear optical effects in organic molecules and crystals, providing a classical distinction between quadratic and cubic processes. This book begins with a general overview of the basic properties of organic matter, followed by a review on the benefits derived from quantum-chemistry-based models and growth and characterization of high quality, bulk organic crystals and waveguided structures. A case study focusing on a specific material, namely urea, which exemplifies a situation in which transparency in the UV region has been purposely traded for nonlinear efficiency is also deliberated. This text concludes with a description of a type of trade-off between the unpredictable orientation of molecules in crystalline media, polarity of liquid-crystalline structures, and dominant electronic contribution to the electro-optic effect. This publication is beneficial to solid-state physicists and chemists concerned with nonlinear optical properties of organic molecules and crystals.
Organic Crystals I Characterization
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Author : Norbert Karl
language : en
Publisher: Springer
Release Date : 1991-06-06
Organic Crystals I Characterization written by Norbert Karl and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-06-06 with Science categories.
Lattice defects of organic molecular crystals affect their optical or electrical properties by changing the local energy structure. Lattice defects also playa very important role in the chemical and physical properties, for example, as an active site of a catalyst or an initiating point of a solid state reaction. However, very little has been reported on the defect structure of real organic crystals. In the past ten years it became clear that the origin and the structure of the defects depend on the geometrical and chemical nature of the building units of the crystal, the molecules. Molecular size, form and anisotropy, charge distribution, etc. cause the characteristic structure of the defect. Accordingly, a defect structure found in one compound may not be found in others. The defect structure of an organic crystal cannot be defined solely by the displacement of the molecular center from the normal lattice site. A rotational displacement of a molecule is frequently accompanied by a parallel shift of the molecular center. In addition to the usual geometrical crystallographic defects, chemical defects are important too which originate, for example, from differences in the substitution sites of molecules carrying side groups. In order to reveal such defect structures, direct imaging of molecules by high resolution electron microscopy is the only direct method.
Luminescence Of Crystals Molecules And Solutions
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Author : Ferd Williams
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Luminescence Of Crystals Molecules And Solutions written by Ferd Williams 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.
These Proceedings report the scholarly work presented in Leningrad at the largest conference ever held on luminescence. In addition to the large number of delegates, the Conference was dis tinguished by strong and balanced representation on the program of papers from capitalist and socialist nations. The Conference was sponsored by the International Union of Pure and Applied Physics and by the Academy of Science of the USSR. As noted in the Opening Ceremony, this Conference is in the series held approximately every three years since 1938. All branches of luminescence are included. It was recognized, during the early stages of organization of the Conference, that there would be difficulties associated with the preparation of an English version of the Proceedings. Until just before the Conference, it was not evident whether translations of the Russian papers would be available and whether facilities would exist at the Conference for a working publication committee to edit the manuscripts. It was not possible, therefore, to make contractual arrangements before the Conference for publication.
Organic Crystals And Molecules
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Author : J. Monteath Robertson (John Monteath.)
language : en
Publisher:
Release Date : 1953
Organic Crystals And Molecules written by J. Monteath Robertson (John Monteath.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with categories.