The Two Faces Of Chemistry PDF Download

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Two Faces Of Chemistry PDF full book. Access full book title The Two Faces Of Chemistry.

The Two Faces of Chemistry

The Two Faces of Chemistry
Author: Luciano Caglioti
Publisher: MIT Press (MA)
Total Pages: 218
Release: 1983-01
Genre: Technology & Engineering
ISBN: 9780262030885

Download The Two Faces of Chemistry Book in PDF, ePub and Kindle

The promise of better living through chemistry has not always been kept. Chemical techniques were used to produce both penicillin and dynamite, penicillin can have harmful side effects while dynamite has beneficial uses. Insecticides have helped alleviate world hunger while they have disrupted global ecosystems. Numerous petrochemicals have made life both easier and more hazardous. The Two Faces of Chemistry presents a balanced view, weighing the assets and dangers of the whole range of modern chemical compounds and their byproducts, including food additives, "natural" foods, fertilizers, pesticides, drugs and other medications, cosmetics, soaps and detergents, plastics, artificial rubber, fluorocarbons, and leaded gasoline. Caglioti, an organic chemist who has written widely in the popular press, not only makes all this material clear and understandable to readers without technical background but also captures the drama that accompanied the development of new products and the revelation, often years later, that they could lead to devastating results. In each case - for example, in his accounts of "the saccharin mess" and "the Pill" - he carefully sifts through all the accumulated layers of controversy in order to arrive at an unbiased evaluation and assessment of risk. The book's coverage is worldwide, but most of the data is taken from those countries that use chemicals intensively: the United States, Western Europe, and Japan. The writer and chemist Primo Levi, states in his Foreword that "underneath the statistics and technical data, which with good reason are plentiful, there flows through this book a silent current of wisdom, educational intent, and morality. While it does not attempt to dictate solutions, by its very character it teaches us how best to go about finding them." Luciano Caglioti is Professor of Organic Chemistry at the University of Rome.


The Two Faces of Chemistry

The Two Faces of Chemistry
Author: Luciano Caglioti
Publisher: Mit Press
Total Pages: 240
Release: 1985
Genre: Technology & Engineering
ISBN: 9780262530644

Download The Two Faces of Chemistry Book in PDF, ePub and Kindle

The promise of better living through chemistry has not always been kept. Chemical techniques were used to produce both penicillin and dynamite, penicillin can have harmful side effects while dynamite has beneficial uses. Insecticides have helped alleviate world hunger while they have disrupted global ecosystems. Numerous petrochemicals have made life both easier and more hazardous.The Two Faces of Chemistry presents a balanced view, weighing the assets and dangers of the whole range of modern chemical compounds and their byproducts, including food additives, "natural" foods, fertilizers, pesticides, drugs and other medications, cosmetics, soaps and detergents, plastics, artificial rubber, fluorocarbons, and leaded gasoline. Caglioti, an organic chemist who has written widely in the popular press, not only makes all this material clear and understandable to readers without technical background but also captures the drama that accompanied the development of new products and the revelation, often years later, that they could lead to devastating results. In each case - for example, in his accounts of "the saccharin mess" and "the Pill" - he carefully sifts through all the accumulated layers of controversy in order to arrive at an unbiased evaluation and assessment of risk.The book's coverage is worldwide, but most of the data is taken from those countries that use chemicals intensively: the United States, Western Europe, and Japan.The writer and chemist Primo Levi, states in his Foreword that "underneath the statistics and technical data, which with good reason are plentiful, there flows through this book a silent current of wisdom, educational intent, and morality. While it does not attempt to dictate solutions, by its very character it teaches us how best to go about finding them."Luciano Caglioti is Professor of Organic Chemistry at the University of Rome.


A Textbook of Organic Chemistry – Volume 1

A Textbook of Organic Chemistry – Volume 1
Author: Mandeep Dalal
Publisher: Dalal Institute
Total Pages: 448
Release: 2019-01-01
Genre: Science
ISBN: 8195242731

Download A Textbook of Organic Chemistry – Volume 1 Book in PDF, ePub and Kindle

An advanced-level textbook of organic chemistry for the graduate (B.Sc) and postgraduate (M.Sc) students of Indian and foreign universities. This book is a part of the four-volume series, entitled “A Textbook of Organic Chemistry – Volume I, II, III, IV”. CONTENTS: CHAPTER 1. Nature of Bonding in Organic molecules: Delocalized Chemical Bonding; Conjugation; Cross Conjugation; Resonance; Hyperconjugation; Tautomerism; Aromaticity in Benzenoid and Nonbenzenoid Compounds; Alternant and Non-Alternant Hydrocarbons; Huckel’s Rule: Energy Level of p-Molecular Orbitals; Annulenes; Antiaromaticity; Homo-Aromaticity; PMO Approach; Bonds Weaker than Covalent; Addition Compounds: Crown Ether Complexes and Cryptands, Inclusion Compounds, Cyclodextrins; Catenanes and Rotaxanes CHAPTER 2. Stereochemistry: Chirality; Elements of symmetry; Molecules with more than one chiral centre: diastereomerism; Determination of relative and absolute configuration (octant rule excluded) with special reference to lactic acid, alanine & mandelic acid; Methods of resolution; Optical purity; Prochirality; Enantiotopic and diastereotopic atoms, groups and faces; Asymmetric synthesis: cram’s rule and its modifications, prelog’s rule; Conformational analysis of cycloalkanes (upto six membered rings); Decalins; Conformations of sugars; Optical activity in absence of chiral carbon (biphenyls, allenes and spiranes); Chirality due to helical shape; Geometrical isomerism in alkenes and oximes; Methods of determining the configuration CHAPTER 3. Reaction Mechanism: Structure and Reactivity: Types of mechanisms; Types of reactions; Thermodynamic and kinetic requirements; Kinetic and thermodynamic control; Hammond’s postulate; Curtin-Hammett principle; Potential energy diagrams: Transition states and intermediates; Methods of determining mechanisms; Isotope effects; Hard and soft acids and bases; Generation, structure, stability and reactivity of carbocations, carbanions, free radicals, carbenes and nitrenes; Effect of structure on reactivity; The Hammett equation and linear free energy relationship; Substituent and reaction constants; Taft equation CHAPTER 4. Carbohydrates: Types of naturally occurring sugars; Deoxy sugars; Amino sugars; Branch chain sugars; General methods of determination of structure and ring size of sugars with particular reference to maltose, lactose, sucrose, starch and cellulose. CHAPTER 5. Natural and Synthetic Dyes: Various classes of synthetic dyes including heterocyclic dyes; Interaction between dyes and fibers; Structure elucidation of indigo and Alizarin CHAPTER 6. Aliphatic Nucleophilic Substtitution: The SN2, SN1, mixed SN1 and SN2, SNi , SN1’, SN2’, SNi’ and SET mechanisms; The neighbouring group mechanisms; neighbouring group participation by p and s bonds; anchimeric assistance; Classical and nonclassical carbocations; Phenonium ions; Common carbocation rearrangements; Applications of NMR spectroscopy in the detection of carbocations; Reactivity- effects of substrate structure, attacking nucleophile, leaving group and reaction medium; Ambident nucleophiles and regioselectivity; Phase transfer catalysis. CHAPTER 7. Aliphatic Electrophilic Substitution: Bimolecular mechanisms – SE2 and SEi; The SE1 mechanism; Electrophilic substitution accompained by double bond shifts; Effect of substrates, leaving group and the solvent polarity on the reactivity CHAPTER 8. Aromatic Electrophilic Substitution: The arenium ion: mechanism, orientation and reactivity, energy profile diagrams; The ortho/para ratio, ipso attack, orientation in other ring systems; Quantitative treatment of reactivity in substrates and electrophiles; Diazonium coupling; Vilsmeir reaction; Gattermann-Koch reaction CHAPTER 9. Aromatic Nucleophilic Substitution: The ArSN1, ArSN2, Benzyne and SRN1 mechanisms; Reactivity – effect of substrate structure, leaving group and attacking nucleophile; The von Richter, Sommelet-Hauser, and Smiles rearrangements CHAPTER 10. Elimination Reactions: The E2, E1 and E1cB mechanisms; Orientation of the double bond; Reactivity –effects of substrate structures, attacking base, the leaving group and the medium; Mechanism and orientation in pyrolytic elimination CHAPTER 11. Addition to Carbon-Carbon Multiple Bonds: Mechanistic and stereochemical aspects of addition reactions involving electrophiles, nucleophiles and free radicals; Regio–and chemoselectivity: orientation and reactivity; Addition to cyclopropane ring; Hydrogenation of double and triple bonds; Hydrogenation of aromatic rings; Hydroboration; Michael reaction; Sharpless asymmetric epoxidation. CHAPTER 12. Addition to Carbon-Hetero Multiple Bonds: Mechanism of metal hydride reduction of saturated and unsaturated carbonyl compounds, acids, esters and nitriles; Addition of Grignard reagents, organozinc and organolithium; Reagents to carbonyl and unsaturated carbonyl compounds; Wittig reaction; Mechanism of condensation reactions involving enolates – Aldol, Knoevenagel, Claisen, Mannich, Benzoin, Perkin and Stobbe reactions; Hydrolysis of esters and amides; Ammonolysis of esters.


Elementary Chemistry

Elementary Chemistry
Author: John Scoffern
Publisher:
Total Pages: 546
Release: 1860
Genre: Chemistry
ISBN:

Download Elementary Chemistry Book in PDF, ePub and Kindle


Gaither's Dictionary of Scientific Quotations

Gaither's Dictionary of Scientific Quotations
Author: Carl C. Gaither
Publisher: Springer Science & Business Media
Total Pages: 2800
Release: 2012-01-05
Genre: Science
ISBN: 1461411149

Download Gaither's Dictionary of Scientific Quotations Book in PDF, ePub and Kindle

This unprecedented collection of 27,000 quotations is the most comprehensive and carefully researched of its kind, covering all fields of science and mathematics. With this vast compendium you can readily conceptualize and embrace the written images of scientists, laymen, politicians, novelists, playwrights, and poets about humankind's scientific achievements. Approximately 9000 high-quality entries have been added to this new edition to provide a rich selection of quotations for the student, the educator, and the scientist who would like to introduce a presentation with a relevant quotation that provides perspective and historical background on his subject. Gaither's Dictionary of Scientific Quotations, Second Edition, provides the finest reference source of science quotations for all audiences. The new edition adds greater depth to the number of quotations in the various thematic arrangements and also provides new thematic categories.


A Life and Career in Chemistry

A Life and Career in Chemistry
Author: Pierre Laszlo
Publisher: Springer Nature
Total Pages: 250
Release: 2021-09-13
Genre: Science
ISBN: 3030823938

Download A Life and Career in Chemistry Book in PDF, ePub and Kindle

This book is an enthusiastic account of Pierre Laszlo’s life and pioneering work on catalysis of organic reactions by modified clays, and his reflections on doing science from the 1960s to 1990s. In this autobiography, readers will discover a first-hand testimony of the chemical revolution in the second half of the 20th century, and the author’s perspective on finding a calling in science and chemistry, as well as his own experience on doing science, teaching science and managing a scientific career. During this period, Pierre Laszlo led an academic laboratory and worked also in three different countries: the US, Belgium and France, where he had the opportunity to meet remarkable colleagues. In this book, he recalls his encounters and collaborations with important scientists, who shaped the nature of chemistry at times of increased pace of change, and collates a portrait of the worldwide scientific community at that time. In addition, the author tells us about the turns and twists of his own life, and how he ended up focusing his research on clay based chemistry, where clay minerals were turned in his lab to catalysis of key chemical transformations. Given its breath, the book offers a genuine information on the life and career of a chemist, and it will appeal not only to scientists and students, but also to historians of science and to the general reader.


Pericyclic Chemistry

Pericyclic Chemistry
Author: Dipak Kumar Mandal
Publisher: Elsevier
Total Pages: 534
Release: 2018-03-26
Genre: Science
ISBN: 0128149590

Download Pericyclic Chemistry Book in PDF, ePub and Kindle

Pericyclic Chemistry: Orbital Mechanisms and Stereochemistry is a complete guide to the topic that is ideal for graduate students, advanced undergraduate students and researchers in organic chemistry. An introduction to molecular orbital theory and relevant stereochemical concepts is provided as background, with all four classes of pericyclic reactions discussed and illustrated with orbital picture representations. Also included are chapters on cycloadditions, the most versatile class, and electrocyclic reactions, sigmatropic rearrangements and group transfer reactions. A separate chapter on the construction of correlation diagrams is also included, emphasizing a practical, hands on approach. Author Dipak Kumar Mandal brings over 30 years of teaching experience to the topic and illuminates pericyclic chemistry with a clear and fresh perspective. Comprehensive guide featuring unifying mechanistic approaches, stereochemical details and novel rules and mnemonics to delineate product stereochemistry Includes two background chapters on molecular orbitals and stereochemical concepts Emphasizes a theoretical understanding using perturbation theory (Salem-Klopman equation) and physical insights from orbital and state correlation analyses


Advanced Organic Chemistry

Advanced Organic Chemistry
Author: Francis A. Carey
Publisher: Springer Science & Business Media
Total Pages: 601
Release: 2012-12-06
Genre: Science
ISBN: 1461397928

Download Advanced Organic Chemistry Book in PDF, ePub and Kindle


Chemically Speaking

Chemically Speaking
Author: C.C. Gaither
Publisher: CRC Press
Total Pages: 604
Release: 2016-04-19
Genre: Science
ISBN: 1420034634

Download Chemically Speaking Book in PDF, ePub and Kindle

In these days of ever-increasing specialization, it is important to gain a broad appreciation of scientific disciplines such as chemistry. With this in mind, Chemically Speaking: A Dictionary of Quotations contains the words and wisdom of several hundred scientists, writers, philosophers, poets, and academics. Some quotations are illustrated by amu