Science

The Weak Hydrogen Bond

In Structural Chemistry and Biology

Author: Gautam R. Desiraju,Thomas Steiner

Publisher: Oxford University Press on Demand

ISBN: 9780198509707

Category: Science

Page: 507

View: 4946

Review from previous edition 'For crystallographers interested in future advances in the study of hydrogen bonding and their implications for crystal engineering and structural biology, this is a must-read book ' Acta Crystallographica'It is a real pleasure to read the book' Crystallography News'This book is an important monograph for those working on the related structural chemistry of the weak hydrogen bond' MoleculesThe weak or non-conventional hydrogen bond has been the subject of intense scrutiny over recent years. Now available in paperback, this highly acclaimed book provides a critical assessment on this interesting and occasionally controverstial interaction type.
Science

Hydrogen Bonding - New Insights

Author: Slawomir Grabowski

Publisher: Springer Science & Business Media

ISBN: 140204853X

Category: Science

Page: 524

View: 579

This book uses examples from experimental studies to illustrate theoretical investigations, allowing greater understanding of hydrogen bonding phenomena. The most important topics in recent studies are covered. This volume is an invaluable resource that will be of particular interest to physical and theoretical chemists, spectroscopists, crystallographers and those involved with chemical physics.
Science

Diffuse X-Ray Scattering and Models of Disorder

Author: Thomas Richard Welberry

Publisher: Oxford University Press on Demand

ISBN: 0198528582

Category: Science

Page: 266

View: 5208

Diffuse X-ray scattering is a rich (virtually untapped) source of local structural information over and above that obtained by conventional crystallography. The book aims to show how computer simulation of a model crystal provides a general method by which diffuse scattering of all kinds and from all types of materials can be interpreted and analysed.
Science

The Basics of Crystallography and Diffraction

Author: Christopher Hammond

Publisher: Oxford University Press, USA

ISBN: 9780198505525

Category: Science

Page: 331

View: 728

A classic textbook providing a clear and comprehensive introduction to the topic of crystallography and diffraction for undregraduate and beginning graduate students and lecturers in physics, chemistry, materials and earth sciences. For this second edition the existing material has been throughly updated.
Science

The Chemical Bond in Inorganic Chemistry

The Bond Valence Model

Author: Ian David Brown

Publisher: Oxford University Press on Demand

ISBN: 0198508700

Category: Science

Page: 278

View: 5800

'... there has long been a need for a dedicated monograph on the subject... a highly readable book about a theory that, though it has long found application in inorganic crystal chemistry, deserves to be used more widely.' Crystallography NewsThe bond valence model is a recently developed model of the chemical bond in inorganic chemistry that complements the bond model widely used in organic chemistry. It is simple, quantitative, intuitive, and predictive - no more than a pocket calculator is needed to calculate it. This book focuses on the theory that underlies the model, and shows how it has been used in physics, materials science, chemistry, mineralogy, soil science, and molecular biology.
Science

Fundamentals of Crystallography

Author: Carmelo Giacovazzo

Publisher: Oxford University Press, USA

ISBN: 9780198509585

Category: Science

Page: 825

View: 9189

Crystallography and structure theory have recently received increasing interest due to their role in understanding biological structures, high-temperature superconductors, and effects on mineral properties related to changes in temperature and pressure. This text offers an account of the wide range of crystallography in various branches of science.The fundamentals, the most frequently used procedures, and experimental techniques are all described, and a number of appendices are devoted to more specialist aspects. The book is an updated edition with emphasis on the range of topical applications. Illustrations should help to clarify the subject matter. To provide a better understanding of the basics of crystallography, a compact disk has been added to this edition, offering the facilities of modern graphics to simulate experiments, show complex images, and provide a number of exercises.
Chemistry

Journal

Author: American Chemical Society

Publisher: N.A

ISBN: N.A

Category: Chemistry

Page: N.A

View: 5466

Science

Ionic liquids 3

Author: Robin D. Rogers,Kenneth R. Seddon,American Chemical Society. Division of Petroleum Chemistry

Publisher: An American Chemical Society Publication

ISBN: N.A

Category: Science

Page: 356

View: 4448

Ionic Liquids III will complete the trilogy of Symposium Series books Ionic Liquids: Industrial Applications for Green Chemistry, SS 818 and Ionic Liquids as Green Solvents: Progress and Prospects, SS 856 edited by Robin Rogers and Ken Seddon. Ionic Liquids III will include the latest advances in the field of ionic liquids (IL).
Science

The Nature of the Hydrogen Bond

Outline of a Comprehensive Hydrogen Bond Theory

Author: Gastone Gilli,Paola Gilli

Publisher: OUP Oxford

ISBN: 0191580279

Category: Science

Page: 330

View: 7222

Hydrogen bond (H-bond) effects are known: it makes sea water liquid, joins cellulose microfibrils in trees, shapes DNA into genes and polypeptide chains into wool, hair, muscles or enzymes. Its true nature is less known and we may still wonder why O-H...O bond energies range from less than 1 to more than 30 kcal/mol without apparent reason. This H-bond puzzle is re-examined here from its very beginning and presented as an inclusive compilation of experimental H-bond energies and geometries. New concepts emerge from this analysis: new classes of systematically strong H-bonds (CAHBs and RAHBs: charge- and resonance-assisted H-bonds); full H-bond classification in six classes (the six chemical leitmotifs); and assessment of the covalent nature of strong H-bonds. This leads to three distinct but inter-consistent models able to rationalize the H-bond and predict its strength, based on classical VB theory, matching of donor-acceptor acid-base parameters (PA or pKa), or shape of the H-bond proton-transfer pathway. Applications survey a number of systems where strong H-bonds play an important functional role, namely drug-receptor binding, enzymatic catalysis, ion-transport through cell membranes, crystal design and molecular mechanisms of functional materials.
Medical

Wirkstoffdesign

Entwurf und Wirkung von Arzneistoffen

Author: Gerhard Klebe

Publisher: Springer-Verlag

ISBN: 3827422132

Category: Medical

Page: 637

View: 7826

Dieses für den deutschen Raum einzigartige Lehrbuch richtet sich an Studenten der Pharmazie, Chemie und Biowissenschaften, aber auch an Quereinsteiger in Forschungs- und Entwicklungsabteilungen der Pharmazeutischen Industrie. Die zweite Auflage ist komplett überarbeitet. Zahlreiche aktuelle Entwicklungen vor allem im methodischen Bereich sind zum Teil in neuen Kapiteln aufgegriffen, viele Fallbeispiele machen die Theorien und Verfahren anschaulich und nachvollziehbar. Der Bogen spannt sich von der Geschichte der Arzneimittelforschung, den Wirkmechanismen der Arzneistoffe und den Methoden zur Leitstruktursuche und -optimierung über Strukturbestimmungsmethoden, Modelling, Moleküldynamik und QSAR-Methoden bis zum struktur- und computergestützten Design. Insgesamt legt das Buch besonderen Wert auf die räumliche Struktur der interagierenden Moleküle und erklärt, warum ein bestimmter Wirkstoff in seiner Gestalt praktisch durch die Geometrie und den Wirkmechanismus des Zielproteins festgelegt wird. Die beiliegende DVD mit interaktiven Molekülmodellen dient dem Ziel, dem Lernenden einen leichten Zugang zum räumlichen Verständnis der molekularen Strukturen und Interaktionen zu geben.

Die Katalyse

Author: Paul Sabatier

Publisher: BoD – Books on Demand

ISBN: 3846039152

Category:

Page: 256

View: 821

Science

Untersuchungen über Chlorophyll

Methoden und Ergebnisse

Author: Richard Willstätter,Arthur Stoll

Publisher: Springer-Verlag

ISBN: 3642496652

Category: Science

Page: 424

View: 5162

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Aufbau der Physik

Author: Carl Friedrich von Weizsäcker

Publisher: N.A

ISBN: 9783423330848

Category:

Page: 662

View: 1467