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Q. Concepts of valence bond theory?
The developments can also be cited as a typical example of the manner in which scientific theories grow and are refined in any particular field. Although Werner's theory could explain most of the observations and facts known at that time, yet many other observations made by he and later workers indicated the need for further improvements in the theory of complex compounds.
The next major step in understanding the nature of bond in complexes was the application of the well known concepts of valence bond theory developed by Pauling. Valence bond theory places main emphasis on the atomic orbitals of the metal ion which are involved in the bond formation. Once these were identified, the stereochemistry, geometry and the magnetic properties could be better interpreted in terms of suitable combinations of these orbitals.
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