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Theories of Organic Chemistry

Theories of Organic Chemistry
Author: Ferdinand August Karl Henrich
Publisher:
Total Pages: 634
Release: 1922
Genre: Chemistry, Organic
ISBN:

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Modern Theories of Organic Chemistry

Modern Theories of Organic Chemistry
Author: H. B. Watson
Publisher: READ BOOKS
Total Pages: 228
Release: 2007-03
Genre: Science
ISBN: 9781406738483

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PREFACE. THE Author of this very practical treatise on Scotch Loch - Fishing desires clearly that it may be of use to all who had it. He does not pretend to have written anything new, but to have attempted to put what he has to say in as readable a form as possible. Everything in the way of the history and habits of fish has been studiously avoided, and technicalities have been used as sparingly as possible. The writing of this book has afforded him pleasure in his leisure moments, and that pleasure would be much increased if he knew that the perusal of it would create any bond of sympathy between himself and the angling community in general. This section is interleaved with blank shects for the readers notes. The Author need hardly say that any suggestions addressed to the case of the publishers, will meet with consideration in a future edition. We do not pretend to write or enlarge upon a new subject. Much has been said and written-and well said and written too on the art of fishing but loch-fishing has been rather looked upon as a second-rate performance, and to dispel this idea is one of the objects for which this present treatise has been written. Far be it from us to say anything against fishing, lawfully practised in any form but many pent up in our large towns will bear us out when me say that, on the whole, a days loch-fishing is the most convenient. One great matter is, that the loch-fisher is depend- ent on nothing but enough wind to curl the water, -and on a large loch it is very seldom that a dead calm prevails all day, -and can make his arrangements for a day, weeks beforehand whereas the stream- fisher is dependent for a good take on the state of the water and however pleasant and easy it may be for one living near the banks of a good trout stream or river, it is quite another matter to arrange for a days river-fishing, if one is looking forward to a holiday at a date some weeks ahead. Providence may favour the expectant angler with a good day, and the water in order but experience has taught most of us that the good days are in the minority, and that, as is the case with our rapid running streams, -such as many of our northern streams are, -the water is either too large or too small, unless, as previously remarked, you live near at hand, and can catch it at its best. A common belief in regard to loch-fishing is, that the tyro and the experienced angler have nearly the same chance in fishing, -the one from the stern and the other from the bow of the same boat. Of all the absurd beliefs as to loch-fishing, this is one of the most absurd. Try it. Give the tyro either end of the boat he likes give him a cast of ally flies he may fancy, or even a cast similar to those which a crack may be using and if he catches one for every three the other has, he may consider himself very lucky. Of course there are lochs where the fish are not abundant, and a beginner may come across as many as an older fisher but we speak of lochs where there are fish to be caught, and where each has a fair chance. Again, it is said that the boatman has as much to do with catching trout in a loch as the angler. Well, we dont deny that. In an untried loch it is necessary to have the guidance of a good boatman but the same argument holds good as to stream-fishing...


Organic Chemistry

Organic Chemistry
Author: Pierre Vogel
Publisher: John Wiley & Sons
Total Pages: 1382
Release: 2019-10-07
Genre: Science
ISBN: 3527345329

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Provides the background, tools, and models required to understand organic synthesis and plan chemical reactions more efficiently Knowledge of physical chemistry is essential for achieving successful chemical reactions in organic chemistry. Chemists must be competent in a range of areas to understand organic synthesis. Organic Chemistry provides the methods, models, and tools necessary to fully comprehend organic reactions. Written by two internationally recognized experts in the field, this much-needed textbook fills a gap in current literature on physical organic chemistry. Rigorous yet straightforward chapters first examine chemical equilibria, thermodynamics, reaction rates and mechanisms, and molecular orbital theory, providing readers with a strong foundation in physical organic chemistry. Subsequent chapters demonstrate various reactions involving organic, organometallic, and biochemical reactants and catalysts. Throughout the text, numerous questions and exercises, over 800 in total, help readers strengthen their comprehension of the subject and highlight key points of learning. The companion Organic Chemistry Workbook contains complete references and answers to every question in this text. A much-needed resource for students and working chemists alike, this text: -Presents models that establish if a reaction is possible, estimate how long it will take, and determine its properties -Describes reactions with broad practical value in synthesis and biology, such as C-C-coupling reactions, pericyclic reactions, and catalytic reactions -Enables readers to plan chemical reactions more efficiently -Features clear illustrations, figures, and tables -With a Foreword by Nobel Prize Laureate Robert H. Grubbs Organic Chemistry: Theory, Reactivity, and Mechanisms in Modern Synthesis is an ideal textbook for students and instructors of chemistry, and a valuable work of reference for organic chemists, physical chemists, and chemical engineers.


Theories of Organic Chemistry

Theories of Organic Chemistry
Author: Ferdinand August Karl Henrich
Publisher: Forgotten Books
Total Pages: 623
Release: 2015-06-17
Genre: Science
ISBN: 9781330138137

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Excerpt from Theories of Organic Chemistry The general theory of Organic Chemistry is at present in a state of violent transformation. While the old hypothesis of valency with the accepted division into single valencies on the atoms has not yet by any means been abandoned, it is nevertheless no longer looked upon as a noli me tangere. On the contrary, an ever-increasing number of observations would seem to indicate that the division of the original valency force present on the atom is in reality an unequal one and may even vary under different conditions. This view already discussed by A. Claus in 1881 has received experimental support from facts discovered in the course of investigations on free radicals (Triphenylmethyl, etc.). A more detailed study of the physical properties of organic compounds (such as the relation between color and constitution) has, moreover, served to connect conceptions regarding the inner structure of the molecule with the "Electron Theory of the Constitution of the Atom." For example, observations as to what parts of the molecule are especially influenced by light may be made the basis for discussion in regard to the mechanism of molecular formation in all its phases and may ultimately lead to the discovery of a theory which, based upon the new views in regard to the constitution of the atom, will afford a satisfactory explanation for all physical and chemical phenomena. American chemists have played a considerable role in the newer developments and have contributed many fundamental researches. Unfortunately foreign periodicals in Germany have become such a rarity that it is no longer possible to cover the original literature completely. I am, therefore, very grateful to Professor Treat B. Johnson for filling in some of these gaps. It is to be hoped that the book will be of use to research chemists as well as to the teaching profession and thus lead to an ever greater perfection of our beautiful science. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.


The Electronic Theory of Organic Chemistry

The Electronic Theory of Organic Chemistry
Author: Michael James Steuart Dewar (Chemist, India, United States)
Publisher:
Total Pages: 324
Release: 1949
Genre:
ISBN:

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Theoretical Organic Chemistry

Theoretical Organic Chemistry
Author: C. Párkányi
Publisher: Elsevier
Total Pages: 637
Release: 1997-12-09
Genre: Science
ISBN: 0080542727

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This volume is devoted to the various aspects of theoretical organic chemistry. In the nineteenth century, organic chemistry was primarily an experimental, empirical science. Throughout the twentieth century, the emphasis has been continually shifting to a more theoretical approach. Today, theoretical organic chemistry is a distinct area of research, with strong links to theoretical physical chemistry, quantum chemistry, computational chemistry, and physical organic chemistry. The objective in this volume has been to provide a cross-section of a number of interesting topics in theoretical organic chemistry, starting with a detailed account of the historical development of this discipline and including topics devoted to quantum chemistry, physical properties of organic compounds, their reactivity, their biological activity, and their excited-state properties.


Theoretical and Physical Principles of Organic Reactivity

Theoretical and Physical Principles of Organic Reactivity
Author: Addy Pross
Publisher: Wiley-Interscience
Total Pages: 320
Release: 1995-09-25
Genre: Science
ISBN:

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This approach to the general problem of organic reactivity combines classical organic chemistry with new theoretical ideas developed by the author. The text contains a non-mathematical description of the curve crossing model, expressed in the language of qualitative valence bond theory.


Modern Theories of Organic Chemistry

Modern Theories of Organic Chemistry
Author: Hb Watson
Publisher: Palala Press
Total Pages: 238
Release: 2016-05-06
Genre:
ISBN: 9781355719229

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.