Thesis: Chapter: Introduction: SYNTHESIS, SPECTRAL CHARACTERIZATION AND BIOLOGICAL ACTIVITIES OF SOME METAL COMPLEXES DERIVED FROM SCHIFF’S BASES

Coordination Chemistry is the branch of science which deals with the interaction of inorganic and organic ligands with central metal ions. It also studies the synthesis, structures, physical, chemical and biological properties of the coordination compounds. Coordination Chemistry is a dynamic and pioneering branch of science and its study established much attention and offered inexhaustible results and hence this has become an extremely important and attractive field for researchers. Coordination compounds were known, but not understood in any sense till the beginning of the 20th century, when Alfred Werner developed the basis of modern Coordination Chemistry. It must be remembered that the Werner’s coordination theory in 1893 was put forward before the electron had been discovered by J. J. Thompson in 1896, and therefore the Electronic Theory of Valency. This theory and his painstaking work over the next 20 years won Alfred Werner the Nobel Prize in Chemistry in 1913. In recent years, researchers have undertaken a number of methodologies towards the design and synthesis of metal-organic coordination compounds. The work on coordination chemistry is the fundamental important topic of current interest.