Search results for: valency-and-bonding

Valency and Bonding

Author : Frank Weinhold
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The first modernized overview of chemical valency and bonding theory, based on current computational technology.

Essentials of Organic Chemistry

Author : Paul M. Dewick
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Essentials of Organic Chemistry is an accessible introduction tothe subject for students of Pharmacy, Medicinal Chemistry andBiological Chemistry. Designed to provide a thorough grounding infundamental chemical principles, the book focuses on key elementsof organic chemistry and carefully chosen material is illustratedwith the extensive use of pharmaceutical and biochemicalexamples. In order to establish links and similarities the book placesprominence on principles and deductive reasoning withcross-referencing. This informal text also places the main emphasison understanding and predicting reactivity rather than syntheticmethodology as well as utilising a mechanism based layout andfeaturing annotated schemes to reduce the need for textualexplanations. * tailored specifically to the needs of students of PharmacyMedical Chemistry and Biological Chemistry * numerous pharmaceutical and biochemical examples * mechanism based layout * focus on principles and deductive reasoning This will be an invaluable reference for students of PharmacyMedicinal and Biological Chemistry.

Elementary Molecular Bonding Theory

Author : Peter Graham Perkins
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Discovering Chemistry With Natural Bond Orbitals

Author : Frank Weinhold
File Size : 59.18 MB
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This book explores chemical bonds, their intrinsic energies, andthe corresponding dissociation energies which are relevant inreactivity problems. It offers the first book on conceptual quantumchemistry, a key area for understanding chemical principles andpredicting chemical properties. It presents NBO mathematicalalgorithms embedded in a well-tested and widely used computerprogram (currently, NBO 5.9). While encouraging a "look under thehood" (Appendix A), this book mainly enables students to gainproficiency in using the NBO program to re-express complexwavefunctions in terms of intuitive chemical concepts and orbitalimagery.

Valency and Molecular Structure

Author : E. Cartmell
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Valency and Molecular Structure, Fourth Edition provides a comprehensive historical background and experimental foundations of theories and methods relating to valency and molecular structures. In this edition, the chapter on Bohr theory has been removed while some sections, such as structures of crystalline solids, have been expanded. Details of structures have also been revised and extended using the best available values for bond lengths and bond angles. Recent developments are mostly noted in the chapter on complex compounds, while a new chapter has been added to serve as an introduction to the spectroscopy of complex compounds. Other topics include the experimental foundation of the quantum theory; molecular-orbital method; ionic, hydrogen, and metallic bonds; structures of some simple inorganic compounds; and electronic spectra of transition-metal complexes. This publication is a useful reference for undergraduate students majoring in chemistry and other affiliated science subjects.

The Pearson Guide to Objective Chemistry for the AIEEE

Author : Singhal Atul
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Analytical Chemistry in Archaeology

Author : A. M. Pollard
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List of figures p. ix List of tables p. xii Preface p. xiii Part I The Role of Analytical Chemistry in Archaeology p. 1 1 Archaeology and Analytical Chemistry p. 3 1.1 The history of analytical chemistry in archaeology p. 5 1.2 Basic archaeological questions p. 10 1.3 Questions of process p. 25 2 An Introduction to Analytical Chemistry p. 31 2.1 What is chemistry? p. 31 2.2 Analytical chemistry p. 38 2.3 Special considerations in the analysis of archaeological material p. 42 Part II The Application of Analytical Chemistry to Archaeology p. 45 3 Elemental Analysis By Absorption and Emission Spectroscopies in the Visible and Ultraviolet p. 47 3.1 Optical emission spectroscopy (OES) p. 47 3.2 Atomic absorption spectroscopy (AAS) p. 48 3.3 Inductively coupled plasma atomic emission spectroscopy (ICP-AES) p. 57 3.4 Comparison of analysis by absorption/emission spectrometries p. 60 3.5 Greek pots and European bronzes - archaeological applications of emission/absorption spectrometries p. 62 4 Molecular Analysis by Absorption and Raman Spectroscopy p. 70 4.1 Optical and UV spectrophotometry p. 70 4.2 Infrared absorption spectroscopy p. 77 4.3 Raman spectroscopy p. 83 4.4 Soils, bone, and the "Baltic shoulder"--Archaeological applications of vibrational spectroscopy p. 85 5 X-ray Techniques and Electron Beam Microanalysis p. 93 5.1 Introduction to X-rays p. 93 5.2 X-ray fluorescence (XRF) spectrometry p. 101 5.3 Electron microscopy as an analytical tool p. 109 5.4 X-ray diffraction p. 113 5.5 Other X-ray related techniques p. 116 5.6 A cornucopia of delights - archaeological applications of X-ray analysis p. 118 6 Neutron Activation Analysis p. 123 6.1 Introduction to nuclear structure and the principles of neutron activation analysis p. 123 6.2 Neutron activation analysis in practice p. 128 6.3 Practical alchemy - archaeological applications of NAA p. 130 7 Chromatography p. 137 7.1 Principles of chromatography p. 137 7.2 Classical liquid column chromatography p. 139 7.3 Thin layer chromatography (TLC) p. 139 7.4 Gas chromatography (GC) p. 142 7.5 High performance liquid chromatography (HPLC) p. 146 7.6 Sticky messengers from the past - archaeological applications of chromatography p. 147 8 Mass Spectrometry p. 160 8.1 Separation of ions by electric and magnetic fields p. 160 8.2 Light stable isotopes (¿D, ¿13C, ¿15N, ¿18O, and ¿34S) p. 169 8.3 Heavy isotopes (Pb, Sr) - thermal ionization mass spectrometry (TIMS) p. 173 8.4 Combined techniques - GC-MS p. 174 8.5 Isotope archaeology - applications of MS in archaeology p. 176 9 Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) p. 195 9.1 Types of ICP analysis p. 195 9.2 Comparison with other techniques p. 200 9.3 Instrument performance p. 202 9.4 Splitting hairs - archaeological applications of ICP-MS p. 208 Part III Some Basic Chemistry for Archaeologists p. 215 10 Atoms, Isotopes, Electron Orbitals, and the Periodic Table p. 217 10.1 The discovery of subatomic particles p. 217 10.2 The Bohr-Rutherford model of the atom p. 227 10.3 Stable and radioactive isotopes p. 230 10.4 The quantum atom p. 238 10.5 The periodic table p. 243 11 Valency, Bonding, and Molecules p. 249 11.1 Atoms and molecules p. 249 11.2 Bonds between atoms p. 253 11.3 Intermolecular bonds p. 258 11.4 Lewis structures and the shapes of molecules p. 260 11.5 Introduction to organic compounds p. 263 11.6 Isomers p. 269 12 The Electromagnetic Spectrum p. 275 12.1 Electromagnetic waves p. 275 12.2 Particle-wave duality p. 279 12.3 Emission lines and the Rydberg equation p. 281 12.4 Absorption of EM radiation by matter - Beer's law p. 286 12.5 The EM spectrum and spectrochemical analysis p. 288 12.6 Synchrotron radiation p. 290 13 Practical Issues in Analytical Chemistry p. 294 13.1 Some basic procedures in analytical chemistry p. 294 13.2 Sample preparation for trace element and residue analysis p. 302 13.3 Standards for calibration p. 306 13.4 Calibration procedures and estimation of errors p. 309 13.5 Quality assurance procedures p. 319 Epilogue p. 322 Appendices p. 326 I Scientific notation p. 326 II Significant figures p. 327 III Seven basic SI units p. 328 IV Physical constants p. 329 V Greek notation p. 330 VI Chemical symbols and isotopes of the elements p. 331 VII Electronic configuration of the elements (to radon, Z=86) p. 335 VIII Some common inorganic and organic sample preparation methods used in archaeology p. 337 IX General safe practice in the laboratory p. 340 X COSHH assessments p. 342 References p. 350 Index.

Hydroblasting and Coating of Steel Structures

Author : A. Momber
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KEY FEATURES: • This technique is growing in importance. • The first comprehensive book in this subject. A practical and comprehensive account of the technology and applications of hydroblasting, a technique used more and more in the preparation of steel and other surfaces. Steel surfaces will corrode unless they are properly prepared and coated. Such corrosion can have disastrous effects (eg bridge collapse) therefore the preparation of the surface is of major importance. Due to environmental pressure to move away from grit-blasting, high-pressure water can now be used to prepare surfaces, with few environmental costs. This book systematically and critically reviews the state of current hydroblasting technology and its applications. The book is essentially practical in nature and is written by an expert in the field.

Chemistry of Chemical Bonding

Author : R. K. Sharma
File Size : 48.84 MB
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Introductory Chemistry for the Environmental Sciences

Author : Roy M. Harrison
File Size : 88.45 MB
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New edition of an undergraduate textbook introduces the basic chemical concepts underlying environmental science.

IIT Chemistry I

Author :
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The Nature of Materials

Author : J. G. Tweeddale
File Size : 20.69 MB
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Materials Technology, Volume 1: The Nature of Materials aims to fill the lack of textbooks about the nature of materials. The text contains various lessons regarding materials science and technology. The book begins by discussing the scope of materials technology, which includes biology, chemistry, economics, and psychology. The text then shifts to the properties of materials and discusses several information about atoms in a single material. A discussion on the pre-production and post-production of materials is presented in the entire chapter. The following chapter is about atoms, electrons, and protons. In the third chapter, the lesson shifts to bonds and materials. The last three chapters feature more information about a material, including its structures, chemical reactions, authenticity, and magnetic properties. The book targets those who are taking up an engineering technician course and gives readers a wider knowledge on the technology and nature of materials.

Fundamentals Of Engineering Chemistry As Per The New Syllabus B Tech I Year Of U P Technical University

Author : S.K. Singh
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Gemstones

Author : Michael O'Donoghue
File Size : 75.46 MB
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Gemstones is the first attempt in English to bring together the geological, mineralogical and gemmological developments that have taken place during the last thirty years. Though there have been many gemstone books published in that time, most have been concerned, understandably and rightly, with the science of gem testing and have covered that area very well. Details of the geological occurrence of many of the classic gemstones, and of nearly all those which have only recently been discovered, have been less adequately dealt with. Coverage has been restricted to a number of papers in a wide variety of geological and mineralogical journals. Gemstones hopes to get the balance right. In the preparation of the book all the journals and monographs in the field have been consulted so that the book should stand for some years as the authority to which gemmologists and others turn in the first instance. Ease of reference and depth of coverage make Gemstones both a reference book and a bench book. Acknow ledgements I am grateful to Brian Jackson of the Department of Geology, Royal Museums of Scotland who read the manuscript and painstakingly indicated places where amendment or alteration was needed. I am also grateful to the publishers of the books on which the line illustrations are based. The colour plates present in the book derive from a number of sources, which I would like to acknowledge as follows. Plates 1, 4-15 and 17 Crown copyright reserved.

Corrosion Science and Technology

Author : David E.J. Talbot
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Although they often appear to be permanent, metals are unstable in their service environments and are susceptible to degradation by corrosion. Corrosion occurs when protective mechanisms have been overlooked, break down, or have been exhausted, leaving the metal vulnerable to attack by hostile environments. Control of corrosion is essential in a wide variety of industries. It is of concern to materials scientists and engineers, yet both students and professionals often cannot assimilate the information they need in typical corrosion-related literature because they do not have the specialized background these sources assume. Corrosion Science and Technology clarifies this important background material and guides readers in its practical application. This text integrates the chemical, electrochemical, and metallurgical aspects of corrosion control for application in typical contemporary technologies with economical use of resources. The structures of water, oxides, and metals are examined to identify the interactions by which metals can corrode in natural and relevant artificial environments. The book describes the characteristics of metals and alloys often specified for corrosion-resistant service, and discusses the relative merits of various protective measures and the strategies available to control corrosion. Corrosion Science and Technology profiles aviation, automobile manufacture, food processing, and building construction to show how these sample industries currently address corrosion issues. Written from long experience of both teaching and practice in the field, this book includes explanations of scientific principles and real world applications and case histories. Extensive information on additional corrosion-related literature is provided to guide readers to sources of more specific information. Corrosion Science and Technology gives readers a solid foundation on which to understand and apply corrosion control measures and to comprehend and use information from other sources.

The Pearson Complete Guide To The Aieee 4 E

Author : Khattar Dinesh
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A Crash Course In Aieee Chemistry 2009

Author : Arora
File Size : 76.11 MB
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Biological Inorganic Chemistry

Author : Robert R. Crichton
File Size : 56.71 MB
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Biological Inorganic Chemistry: A New Introduction to Molecular Structure and Function, Second Edition, provides a comprehensive discussion of the biochemical aspects of metals in living systems. Beginning with an overview of metals and selected nonmetals in biology, the book then discusses the following concepts: basic coordination chemistry for biologists; structural and molecular biology for chemists; biological ligands for metal ions; intermediary metabolism and bioenergetics; and methods to study metals in biological systems. The book also covers metal assimilation pathways; transport, storage, and homeostasis of metal ions; sodium and potassium channels and pumps; magnesium phosphate metabolism and photoreceptors; calcium and cellular signaling; the catalytic role of several classes of mononuclear zinc enzymes; the biological chemistry of iron; and copper chemistry and biochemistry. In addition, the book discusses nickel and cobalt enzymes; manganese chemistry and biochemistry; molybdenum, tungsten, vanadium, and chromium; non-metals in biology; biomineralization; metals in the brain; metals and neurodegeneration; metals in medicine and metals as drugs; and metals in the environment. Winner of a 2013 Textbook Excellence Awards (Texty) from the Text and Academic Authors Association Readable style, complemented by anecdotes and footnotes Enables the reader to more readily grasp the biological and clinical relevance of the subject Color illustrations enable easy visualization of molecular mechanisms

Valency Clasical And Modern

Author :
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Language Typology and Language Universals

Author : Martin Haspelmath
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This handbook provides a comprehensive and thorough survey of our current insights into the diversity and unity found across the 6000 languages of this planet. The 125 articles include inter alia chapters on the patterns and limits of variation manifested by analogous structures, constructions and linguistic devices across languages (e.g. word order, tense and aspect, inflection, color terms and syllable structure). Other chapters cover the history, methodology and the theory of typology, as well as the relationship between language typology and other disciplines. The authors of the individual sections and chapters are for the most part internationally known experts on the relevant topics. The vast majority of the articles are written in English, some in French or German. The handbook is not only intended for the expert in the fields of typology and language universals, but for all of those interested in linguistics. It is specifically addressed to all those who specialize in individual languages, providing basic orientation for their analysis and placing each language within the space of what is possible and common in the languages of the world.