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by Rajaram Dhok (Author)
Coordination Chemistry (Approach to Various Coordination Theories) book covers the basic approach of various coordination chemistry theories. This book fulfills the need of graduate and post graduate students of chemistry. Book in written in seven chapters. First chapter written on the introduction of coordination chemistry. It covers the historical development in coordination chemistry. Various terms used in coordination chemistry is defined here. Nomenclature of coordination complexes with suitable examples is explained in this chapter. Formation constant, types of formation constant, factors affecting the stability of complexes and various applications of coordination complexes in analytical field, industrial field and biological uses are given in brief.Werner's theory is prescribed in second chapter. Postulates of Werner's theory, is given here. The comparison of ions in two coordination spheres with suitable examples is explained here. How charges of complex ion are calculated is described in this chapter.Coordination complexes shows different isomers. In the third chapter, types isomerism in coordination complexes is given in detail with suitable examples. In structural isomerism, various types such as Ionization isomerism, Hydrate isomerism, Ligand isomerism, Linkage isomerism, Coordination position isomerism is prescribed. Stereoisomerism or space isomerism shows geometrical or cis-trans isomerism is given with suitable diagrams. Geometrical isomerism in square planar complexes and octahedral complexes are explained in this chapter. Optical or mirror image isomerism in square planar complexes, tetrahedral complexes and octahedral complexes were given with suitable diagrams.Chapter four cover with Sidgwick theory. This theory is explained with various examples of Sidgwick model. Definition of EAN and limitations of Sidgwick model is also given in the chapter.Valence Bond Theory (VBT) for coordination complexes is given in fifth chapter. This theory covers, assumptions of VBT, Concept of hybridization, bonding in tetrahedral, square planar, octahedral complexes is explained according to Pauling theory with the help of suitable examples. Inner and outer orbital complexes, Electroneutrality principle, multiple bonding and limitations of VBT is prescribed in this chapter.Chapter six is covered with Crystal Field Theory (CFT) of coordination complexes. This chapter includes, assumptions of CFT, shapes of d orbitals, group theoretical symbols for various orbitals. Splitting of d orbitals, application of CFT to octahedral complexes is explained here. Strong and weak ligand field splitting concept is given with distribution of electrons in d orbitals. Crystal field stabilization energy (CFSE) is calculated for d1 to d10 case. Various evidences for the formation of CFSE is explained with suitable example. Crystal field spectra and measurement of 10 Dq is given with example, various factors affecting magnitude of 10 Dq is given with suitable examples. How magnetic property is measured with the help of CFT is described here. Jahn-Teller distortion is very important in CFT, it is given in this chapter. Application of CFT to square planar complexes, tetrahedral complexes, octahedral complexes is explained in detail with various d cases. Spectrochemical and Nephelauxetic effect is described with its series. Limitations of CFT is also noted at the end of chapter.Chapter seven covers the Molecular Orbital Theory (MOT) of coordination complexes. In this chapter postulates of MOT are given at the start, then MO treatment of bonding is explained with MO energy level diagram. MO energy level diagrams for various coordination complexes is drawn. Effect of π bonding on stability of coordination complexes is explained with suitable diagram. Ligand field theory and charge transfer spectra is briefly described at the end of chapter.
