Introduction to Advanced Inorganic Chemistru J Durrant 1962

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Kenya Agricultural Research Institute
This book is a text-book of inorganic chemistry covering the whole range of the subject up to the point beyond which its study is best followed in monographs and reviews. The well-worn approach by which chemical substances are discussed largely in accordance with their accessibility and familiarity has been discarded in favour of a systematic treatment based on the principles of theoretical chemistry. As a foundation for this treatment the earlier chapters in the book are devoted to an exposition of the physics and mathematics which are used in discussing the chemical properties of matter. Theoretical work originally expressed in general and abstract terms has been translated into a form which may be understood by those who are debarred by lack of mathematical technique from following the full development of the theory. The discussion, though limited in range, is carried through from basic principles to its conclusion in such a way that each step is fully argued although in simple terms; in only one or two instances has it been found necessary to present unsupported mathematical statements or equations. For some purposes the authors have adopted a method of description which relies on the association of orbital and spin momentum with the real rotation of charge. A simple model based on this concept and on a reinterpretation of effective nuclear charge makes possible numerical predictions which are closely in accord with observation; bond lengths of many diatomic molecules may be calculated from experimental values of the bond energies, and estimates made of the dipole moments of simple molecules. It is shown that the recalculated effective nuclear charge accounts for the property of electronegativity, and also for the lanthanide contraction.