Download or read book The Molecule as Meme written by Jeffrey Huw Williams and published by Morgan & Claypool Publishers. This book was released on 2018-11-26 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: It was not until 1971 that the authority for defining scientific units, the General Conference of Weights and Measures got around to defining the unit that is the basis of chemistry (the mole, or the quantity of something). Yet for all this tardiness in putting the chemical sciences on a sound quantitative basis, chemistry is an old and venerable subject and one naturally asks the question, why? Well, the truth is that up until the mid-1920s, many physicists did not believe in the reality of molecules. Indeed, it was not until after the physics community had accepted Ernest Rutherford's 1913 solar-system-like model of the atom, and the quantum mechanical model of the coupling of electron spins in atoms that physicists started to take seriously the necessity of explaining the chemical changes that chemists had been observing, investigating and recording since the days of the alchemists.

Download or read book Crystals and Crystal Structures written by Richard J. D. Tilley and published by John Wiley & Sons. This book was released on 2020-08-03 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative, updated text that offers an introduction to crystals and crystal structure with coverage of crystallography, and microscopy of materials Written in a friendly, non-mathematical style, the updated second edition of Crystals and Crystal Structures offers a comprehensive exploration of the key elements of crystals and crystal structures. Starting with the basics, it includes information on multiple areas of crystallography, including modulated structures, quasicrystals and protein crystallography, and interdisciplinary applications as diverse as the relationship between physical properties and symmetry. To enhance comprehension of the material presented, the book contains a variety of problems and exercises. The revised second edition offers new material and updates in the field including: An introduction to the use of high intensity X-ray analysis of protein structures Advances in imaging, scanning electron microscopy, and cryo-electron microscopy The relationship between symmetry and physical properties highlighting new findings and an introduction to tensor notation in describing these relationships in a concise fashion Nanoparticles as well as crystallographic aspects, defects, surface defects and the impact of these crystallographic features on properties Perovskite structures and their variations and the inclusion of their wide-ranging properties Written for students ofcrystallography, chemistry, physics, materials science, biosciences and geology, Crystals and Crystal Structures, Second Edition provides an understanding of the subject and enables students to read scientific papers and articles describing a crystal structure or use crystallographic databases.

Download or read book Crystal Structure Analysis for Chemists and Biologists written by Jenny P. Glusker and published by John Wiley & Sons. This book was released on 1996-12-17 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anhand verschiedener Beispiele zeigen die Autoren die Bedeutung der Kristallographie für Chemie und Biochemie auf und bieten somit eine gute Zusammenfassung der allgemeinen Prinzipien der Kristallstrukturanalyse. Zum einen sollen Interessierte, die diese Methode nicht selbst durchführen, in die Lage versetzt werden, deren Ergebnisse zu interpretieren. Zum anderen wird dem Leser deutlich gemacht, welche Bedeutung die ungeheure Datenmenge, die sich aus dieser Methode ergibt, einerseits für die Chemie sowie andererseits für die Biochemie hat. Das Buch ist verständlich geschrieben und mit zahlreichen Abbildungen versehen. Durch die Darstellung der Kristallstrukturanalyse im Vergleich zu anderen Methoden ist das Werk auch besonders für fortgeschrittene Studenten geeignet, die sich mit der Kristallographie vertraut machen wollen.

Download or read book The Basics of Crystallography and Diffraction written by Christopher Hammond and published by Oxford University Press. This book was released on 2009-05-07 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallography and diffraction are widely used throughout science for studying structure. However, many students find these subjects difficult. The aim of this book is to show, through relevant examples and without relying on complex mathematics, that the basic ideas behind crystallography and diffraction are simple and easily comprehensible.

Download or read book Carbohodrates And Proteins written by Amit Arora and published by Discovery Publishing House. This book was released on 2006 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for B.Sc. (Hons.) and M.Sc., students of various universities. In this book my aim has been describe the fundamental principles of organic chemistry. Since I do not consider the chemistry of natural products to be fundamental chemistry but rather the application of fundamental principles. The subject matter described in this book covers much of the basic organic chemistry that is needed by a student who wish to study chemistry as a main subject at degree level. The arrangement of the subjectmatter is based on homologous series and in general, descriptions of reactions are followed by discussion of their mechanisms and these includes an elementary account of the sort of evidence that led workers to suggest mechanisms that are acceptable at the present time.

Download or read book Stereo Differentiating reactions written by Yoshiharu Izumi and published by Elsevier. This book was released on 2012-12-02 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stereo-Differentiating Reactions: The Nature of Asymmetric Reactions provides an introduction to asymmetric reactions. It brings together synthetic organic chemistry, stereochemistry, group theory, the theory of optical rotation, experimental methods, etc., all of which are basic to the study of stereo-differentiating reactions, to form a unified approach based on the new concept of "differentiation." The authors hope that the value of the new concept, which is rather more complex than conventional treatments of asymmetric reactions, will become clear in the present book. This new concept should be useful in many fields of study, not only the development of stereo-differentiating reactions, but also in the study of general reaction mechanisms in organic chemistry. The book contains nine chapters and begins with a historical background of studies on asymmetric reactions. This is followed by separate chapters on molecular symmetry and chirality; nomenclature for chirality, prochirality, and stereo-differentiating reactions; the mechanisms of stereo-differentiating reactions; methods for studying stereo-differentiating reactions; and the basic principle of optical activity.

Download or read book Molecular Light Scattering and Optical Activity written by Laurence D. Barron and published by Cambridge University Press. This book was released on 2009-10-15 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ranging from the physics of elementary particles to the structure of viruses, the subject matter of the book reflects the importance of optical activity and chirality in much of modern science and will be of interest to a wide range of physical and life scientists.

Download or read book Ferroelectric and Antiferroelectric Liquid Crystals written by Sven T. Lagerwall and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of ferroelectricity is a branch of solid state physics which has shown rapid growth during the recent years. Ferroelectric materials exhibit unusual electric properties which make them useful in modern (opto)electronic technology, esp. display technology. Ferroelectric and antiferroelectric liquid crystals, including also various polymer forms, are the hottest research topic today in liquid crystals. The field is at the very beginning of industrial exploitation - a sensitive phase in which a good reference work is needed and will have a broad spectrum of readers both at universities and in industry.

Download or read book A TEXTBOOK OF ORGANIC CHEMISTRY AND PROBLEM ANALYSIS written by K. L. GHATAK and published by PHI Learning Pvt. Ltd.. This book was released on 2014-01-01 with total page 1323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is primarily intended for the students pursuing an honours degree in chemistry. The chapters have been designed to enable the beginners to delve into the subject gradually right from the elementary aspects of organic chemistry, such as properties of molecules and nomenclature, to discussions on organic compounds in the traditional way, that is, beginning with the hydrocarbons and ending up with carboxylic acids and their derivatives with due emphasis on both aliphatic and aromatic compounds. This has been followed by heterocyclic compounds. Chapters on organic reaction mechanism and stereochemistry have been dealt with extra care to enable beginners to master organic chemistry to the core. Natural products, an important part of organic chemistry, have been dealt with due care avoiding too much detail. Each chapter has been supplemented with well chosen worked-out problems to help the students build a strong foundation in the subject.

Download or read book Stereochemistry written by R. K. Sharma and published by Discovery Publishing House. This book was released on 2008 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Geometrical Isomerism, Stereochemistry of Alicyclic Compounds, Optical Isomerism, Stereochemistry of Some Elements Other than Carbon, Nucleophilic Substitution at a Saturated Carbon Atom, Asymmetric Synthesis.

Download or read book Multiferroics written by Andres Cano and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-21 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiferroics, materials with a coexistence of magnetic and ferroelectric order, provide an efficient route for the control of magnetism by electric fields. The authors cover multiferroic thin-film heterostructures, device architectures and domain/interface effects. They critically discuss achievements as well as limitations and assess opportunities for future applications.

Download or read book Optics and Spectroscopy written by R Murugeshan | Kiruthiga Sivaprasath and published by S. Chand Publishing. This book was released on 2003 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been written for the students of B.Sc., Physics of various Indian Universities. The book covers the syllabi, prescribed by Madras, Bharathiyar, Bharathidhasan, Madurai Kamaraj and Manonmaniam Sundaranar Universities. SI System of Units has been used throughout the text. Proper care has been taken in dealing with the subject with modern outlook. A large number of questions and problems have been given at the end of each Chapter. Students should attempt to tackle them properly for better insight and understanding of the subject.

Download or read book An Introduction to Chemical Crystallography written by Paul Groth and published by . This book was released on 1906 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science of Crystal Structures written by Istvan Hargittai and published by Springer. This book was released on 2015-09-09 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume which includes entries on quasicrystals, icosahedral packing, other packing considerations, extended structures, data treatment and data mining is presented by luminaries from the crystallography community. Several of the contributions are from the schools of such trend-setting crystallographers as J. Desmond Bernal and Aleksandr I. Kitaigorodskii. Internationally renowned scientists contributed such as Tom L. Blundell, Johann Jacob Burckhardt, John L. Finney, Jenny P. Glusker, Nobel laureate Herbert A. Hauptman, the 2014 Ewald-Prize winner A. Janner, Aminoff-Prize winner Isabella Karle, Nobel laureate Jerome Karle, Buckley-Prize winner Alan L. Mackay, Ewald-Prize winner David Sayre, Vladimir Shevchenko, and J. Fraser Stoddart. A few frontier topics dominate the selected material. Pioneers of the direct methods describe the phase problem and how it was solved, including the mathematical approach and the utilization of experience with gas-phase electron diffraction. The reviews by Herbert Hauptman, Jerome and Isabella Karle, and David Sayre reach to the present day in assessing the possibilities of X-ray crystallography. Another focus topic is the investigation of systems that are outside the so-called classical system of crystals. They include quasicrystals, imperfect and very small crystals, supramolecular species, crystal structures without lattice, clusters, nanomaterials among others. Application of synchrotron and cryoprotection techniques, the free-electron laser flash technique and others are mentioned in addition to X-ray crystallography. The relationship between structural and materials properties are examined and uncovered. The broader topics of the so-called generalized crystallography include polymers, clusters, polydisperse chain assemblies, and giant icosahedral fullerenes. There are some key contributions related to the structural investigation of biological macromolecules.

Download or read book Chemistry Department At Imperial College London The A History 1845 2000 written by Hannah Gay and published by World Scientific. This book was released on 2016-11-03 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive history of the chemistry department at Imperial College London. Based on archival records, oral testimony, published papers, published and unpublished memoirs, the book tells the story of this world-famous department from its foundation as the Royal College of Chemistry in 1845 to the large department it had become by the year 2000.The book covers research, teaching, departmental governance, students and social life. It also highlights the extraordinary contributions made to the war effort in both the first and second world wars. From its first professors, A. Wilhelm Hofmann and Edward Frankland, the department has been home to many eminent chemists, including, in the later twentieth century, the Nobel laureates Derek Barton and Geoffrey Wilkinson. New information on these and many others is presented in a lively narrative that places both people and events in the larger historical contexts of chemistry, politics, culture and the economy. The book will interest not only those connected with Imperial College, but anyone interested in chemistry and its history, or in higher

Download or read book Handbook of Liquid Crystals 8 Volume Set written by John W. Goodby and published by John Wiley & Sons. This book was released on 2014-04-14 with total page 5240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much more than a slight revision, this second edition of the successful "Handbook of Liquid Crystals" is completely restructured and streamlined, with updated as well as completely new topics, 100% more content and a new team of editors and authors. As such, it fills the gap for a definitive, single source reference for all those working in the field of organized fluids and will set the standard for the next decade. The Handbook's new structure facilitates navigation and combines the presentation of the content by topic and by liquid-crystal type: A fundamentals volume sets the stage for an understanding of the liquid crystal state of matter, while individual volumes cover the main types and forms, with a final volume bringing together the diverse liquid crystal phases through their applications. This unrivaled, all-embracing coverage represents the undiluted knowledge on liquid crystals, making the Handbook a must-have wherever liquid crystals are investigated, produced or used, and in institutions where their science and technology is taught. Also available electronically on Wiley Online Library, www.wileyonlinelibrary.com/ref/holc Volume 1: Fundamentals of Liquid Crystals Volume 2: Physical Properties and Phase Behavior of Liquid Crystals Volume 3: Nematic and Chiral Nematic Liquid Crystals Volume 4: Smectic and Columnar Liquid Crystals Volume 5: Non-Conventional Liquid Crystals Volume 6: Nanostructured and Amphiphilic Liquid Crystals Volume 7: Supermolecular and Polymeric Liquid Crystals Volume 8: Applications of Liquid Crystals

Download or read book Optics of Liquid Crystal Displays written by Pochi Yeh and published by John Wiley & Sons. This book was released on 2009-11-02 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOW UPDATED—THE HIGHLY PRACTICAL GUIDE TO ANALYZING LIQUID CRYSTAL DISPLAYS The subject of liquid crystal displays has vigorously evolved into an exciting interdisciplinary field of research and development, involving optics, materials, and electronics. Updated to reflect recent advances, the Second Edition of Optics of Liquid Crystal Displays now offers a broader, more comprehensive discussion on the fundamentals of display systems and teaches readers how to analyze and design new components and subsystems for LCDs. New features of this edition include: Discussion of the dynamics of molecular reorientation Expanded information of the method of Poincaré sphere in various optical components, including achromatic wave plates and compensators Neutral and negative Biaxial thin films for compensators Circular polarizers and anti-reflection coatings The introduction of wide field-of-view wave plates and filters Comprehensive coverage of VA-LCD and IPS-LCD Additional numerical examples This updated edition is intended as a textbook for students in electrical engineering and applied physics, as well as a reference book for engineers and scientists working in the area of research and development of display technologies.