molecules and models the molecular structures of main group element compounds by arne haaland

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Molecules And Models

Author : Arne Haaland
ISBN : 9780191528606
Genre : Science
File Size : 53. 58 MB
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This book provides a systematic description of the molecular structures and bonding in simple compounds of the main group elements with particular emphasis on bond distances, bond energies and coordination geometries. The description includes the structures of hydrogen, halogen and methyl derivatives of the elements in each group, some of these molecules are ionic, some polar covalent. The survey of molecules whose structures conform to well-established trends is followed by representative examples of molecules that do not conform. We also describe electron donor-acceptor and hydrogen bonded complexes. Chemists use models to systematize our knowledge, to memorize information and to predict the structures of compounds that have not yet been studied. The book provides a lucid discussion of a number of models such as the Lewis electron-pair bond and the VSEPR models, the spherical and polarizable ion models, and molecular orbital calculations, and it outlines the successes and failures of each.

Well Completion Design

Author : Jonathan Bellarby
ISBN : 0080932525
Genre : Technology & Engineering
File Size : 35. 47 MB
Format : PDF, Docs
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Completions are the conduit between hydrocarbon reservoirs and surface facilities. They are a fundamental part of any hydrocarbon field development project. The have to be designed for safely maximising the hydrocarbon recovery from the well and may have to last for many years under ever changing conditions. Issues include: connection with the reservoir rock, avoiding sand production, selecting the correct interval, pumps and other forms of artificial lift, safety and integrity, equipment selection and installation and future well interventions. * Course book based on course well completion design by TRACS International * Unique in its field: Coverage of offshore, subsea, and landbased completions in all of the major hydrocarbon basins of the world. * Full colour

Natural Products In The Chemical Industry

Author : Bernd Schaefer
ISBN : 9783642544613
Genre : Science
File Size : 43. 85 MB
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Natural Products in the Chemical Industry is not a conventional textbook, but rather an invitation to join an entertaining journey that takes you into the fascinating world of natural products. This book features diverse compound classes from a number of areas: colourants, fragrances and flavourings, amino acids, pharmaceuticals, hormones, vitamins and agrochemicals. Whether you are a teacher or a scholar, an undergraduate or graduate student, a professional chemist in industry or academia, or someone just interested in natural sciences, this book allows you to be inspired and entertained by facts and information along with enjoyable anecdotes, historical, economic, political, biological and social considerations. Experts in the field can have a pleasurable time cruising through captivating synthesis methods, which enable the generation of complex molecules on industrial scale. This book · deals with the manufacturing of larger quantities of complex molecules (asymmetric and heterocyclic compounds, polycyclic structures, macrocycles and small rings) · displays all reaction schemes in colour, which makes them easy to read · highlights aesthetics and elegance in modern industrial organic chemistry

The Ecology Of Building Materials

Author : Bjorn Berge
ISBN : 9781136434617
Genre : Architecture
File Size : 74. 51 MB
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The Ecology of Building Materials explores key questions surrounding sustainability of building materials. It provides technical data to enable design and building professionals to choose the most appropriate materials for a project: those that are least polluting, most energy efficient, and from sustainable sources. The book also gives information and guidance on a wide range of issues such as recycling, detailing for increased durability and Life Cycle Analysis. Berge’s book, translated from the Norwegian by Chris Butters and Filip Henley, offers safe and environmentally friendly material options. It provides an essential and easy-to-use reference guide to this complex subject for the building industry professional. New to this edition: • Thorough exploration of building materials in relation to climate change issues • Extensive updating of basic data, as well as the introduction of a wide range of new materials • Methods for recycling and reuse of materials • More information on the interaction between materials and the indoor environment, ventilation and energy use • Full colour text and user-friendly larger format Bjørn Berge is a practicing architect, researcher and lecturer. Since the 1970s, he has written several books on building ecology for the Scandinavian public. He is one of the founders of Gaia Architects who have developed a wide range of pioneering techniques in sustainable building.

Elements Of Physical Chemistry

Author : Peter Atkins
ISBN : 1429218134
Genre : Science
File Size : 85. 66 MB
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This revision of the introductory textbook of physical chemistry has been designed to broaden its appeal, particularly to students with an interest in biological applications.

Structural Methods In Inorganic Chemistry Second Edition

Author : E.A.V. Ebsworth
ISBN : 0849377323
Genre : Science
File Size : 74. 10 MB
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Structural Methods in Inorganic Chemistry, Second Edition is the completely revised and updated version of the successful, first edition text. It is designed to help readers interpret experimental data, understand the material published in modern journals of inorganic chemistry, and make decisions about what techniques will be the most useful in solving particular structural problems. Topics addressed include time scales of physical methods, relative advantages and disadvantages of those methods, nuclear magnetic resonance spectroscopy, and rotational and vibrational spectroscopy. The book also utilizes well-chosen research examples to illustrate the use of the techniques in real research publications. Structural Methods in Inorganic Chemistry makes a strong connection between theoretical topics and the real world of practicing chemists. What's new in the second edition? The Second Edition of Structural Methods in Inorganic Chemistry has been completely revised and updated, featuring new developments in nuclear magnetic resonance and electronic spectroscopy; the addition of more recent case histories; and many new problems throughout the text. Some of the problems are numerical, others involve interpretations of data or logical analysis, while others are meant to start discussions. Answers are given to odd numbered problems, although sets of solutions and comments on the even numbered problems are available to course instructors. A series of worked examples are also included in the text to supplement the case histories. They are intended to illustrate the applications of the particular techniques to real chemical problems, and most of them are drawn from recent chemical literature.

The Nature Of Computation

Author : Cristopher Moore
ISBN : 9780191620805
Genre : Science
File Size : 42. 4 MB
Format : PDF
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Computational complexity is one of the most beautiful fields of modern mathematics, and it is increasingly relevant to other sciences ranging from physics to biology. But this beauty is often buried underneath layers of unnecessary formalism, and exciting recent results like interactive proofs, phase transitions, and quantum computing are usually considered too advanced for the typical student. This book bridges these gaps by explaining the deep ideas of theoretical computer science in a clear and enjoyable fashion, making them accessible to non-computer scientists and to computer scientists who finally want to appreciate their field from a new point of view. The authors start with a lucid and playful explanation of the P vs. NP problem, explaining why it is so fundamental, and so hard to resolve. They then lead the reader through the complexity of mazes and games; optimization in theory and practice; randomized algorithms, interactive proofs, and pseudorandomness; Markov chains and phase transitions; and the outer reaches of quantum computing. At every turn, they use a minimum of formalism, providing explanations that are both deep and accessible. The book is intended for graduate and undergraduate students, scientists from other areas who have long wanted to understand this subject, and experts who want to fall in love with this field all over again.

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