Organic Crystals I

Organic Crystals I PDF Author: Norbert Karl
Publisher:
ISBN: 9783642762543
Category :
Languages : en
Pages : 176

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Organic Crystals I: Characterization

Organic Crystals I: Characterization PDF Author: Norbert Karl
Publisher: Springer Science & Business Media
ISBN: 3642762530
Category : Science
Languages : en
Pages : 169

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Book Description
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 I

Organic Crystals I PDF Author: Norbert Karl
Publisher:
ISBN: 9783642762543
Category :
Languages : en
Pages : 176

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Book Description


Applications of Calorimetry in a Wide Context

Applications of Calorimetry in a Wide Context PDF Author: Amal Ali Elkordy
Publisher: BoD – Books on Demand
ISBN: 9535109472
Category : Science
Languages : en
Pages : 488

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Book Description
Calorimetry, as a technique for thermal analysis, has a wide range of applications which are not only limited to studying the thermal characterisation (e.g. melting temperature, denaturation temperature and enthalpy change) of small and large drug molecules, but are also extended to characterisation of fuel, metals and oils. Differential Scanning Calorimetry is used to study the thermal behaviours of drug molecules and excipients by measuring the differential heat flow needed to maintain the temperature difference between the sample and reference cells equal to zero upon heating at a controlled programmed rate. Microcalorimetry is used to study the thermal transition and folding of biological macromolecules in dilute solutions. Microcalorimetry is applied in formulation and stabilisation of therapeutic proteins. This book presents research from all over the world on the applications of calorimetry on both solid and liquid states of materials.

Nonlinear Optical Properties of Organic Molecules and Crystals V1

Nonlinear Optical Properties of Organic Molecules and Crystals V1 PDF Author: D.S. Chemla
Publisher: Elsevier
ISBN: 0323148158
Category : Science
Languages : en
Pages : 497

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Book Description
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.

Advances in Organic Crystal Chemistry

Advances in Organic Crystal Chemistry PDF Author: Masami Sakamoto
Publisher: Springer Nature
ISBN: 9811550859
Category : Science
Languages : en
Pages : 532

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Book Description
This book summarizes and records the recent notable advances in diverse topics in organic crystal chemistry, which has made substantial progress along with the rapid development of a variety of analysis and measurement techniques for solid organic materials. This review book is one of the volumes that are published periodically on this theme. The previous volume, published in 2015, systematically summarized the remarkable progress in assorted topics of organic crystal chemistry using organic solids and organic–inorganic hybrid materials during the previous 5 years, and it has been widely read. The present volume also shows the progress of organic solid chemistry in the last 5 years, with contributions mainly by invited members of the Division of Organic Crystal Chemistry of the Chemical Society of Japan (CSJ), together with prominent invited authors from countries other than Japan.

Co-crystals

Co-crystals PDF Author: Christer B Aakeröy
Publisher: Royal Society of Chemistry
ISBN: 1788011155
Category : Science
Languages : en
Pages : 354

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Book Description
This book combines co-crystal applications of commercial and practical interest from diverse fields into a single volume. It also examines effective structural design of co-crystals, and provides insights into practical synthesis and characterization techniques.

Characterization Techniques and Tabulations for Organic Nonlinear Optical Materials

Characterization Techniques and Tabulations for Organic Nonlinear Optical Materials PDF Author: Carl W. Dirk
Publisher: Routledge
ISBN: 135146180X
Category : Science
Languages : en
Pages : 914

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Book Description
""Furnishes table of nonlinear optical properties of organic substances as well as experimental procedures for measuring the nonlinearity of the elements tabulated, including composite materials-offering support for scientists and engineers involved in characterizing, optimizing, and producing materials for manufacturing optical devices.

Organic Crystal Engineering

Organic Crystal Engineering PDF Author: Edward R. T. Tiekink
Publisher: John Wiley & Sons
ISBN: 0470681802
Category : Science
Languages : en
Pages : 336

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Book Description
Organic Crystal Engineering provides reviews of topics in organic crystal engineering that will be of interest to all researchers in molecular solid-state chemistry. Specialist reviews written by internationally recognized researchers, drawn from both academia and industry, cover topics including crystal structure prediction features, polymorphism, reactions in the solid-state, designing new arrays and delineating prominent intermolecular forces for important organic molecules.

The Theory and Practice of Scintillation Counting

The Theory and Practice of Scintillation Counting PDF Author: J. B. Birks
Publisher: Elsevier
ISBN: 1483156060
Category : Technology & Engineering
Languages : en
Pages : 685

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Book Description
The Theory and Practice of Scintillation Counting is a comprehensive account of the theory and practice of scintillation counting. This text covers the study of the scintillation process, which is concerned with the interactions of radiation and matter; the design of the scintillation counter; and the wide range of applications of scintillation counters in pure and applied science. The book is easy to read despite the complex nature of the subject it attempts to discuss. It is organized such that the first five chapters illustrate the fundamental concepts of scintillation counting. Chapters 6 to 10 detail the properties and applications of organic scintillators, while the next four chapters discuss inorganic scintillators. The last two chapters provide a review of some outstanding problems and a postscript. Nuclear physicists, radiation technologists, and postgraduate students of nuclear physics will find the book a good reference material.

Synthesis, Characterization and Properties of Nanostructures

Synthesis, Characterization and Properties of Nanostructures PDF Author: Prafulla K. Jha
Publisher: Trans Tech Publications Ltd
ISBN: 3038132888
Category : Science
Languages : en
Pages : 192

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Book Description
Computational and Experimental Approach Special topic volume, invited papers only.