Coordination compounds: Are those addition molecular

Coordination compounds are those addition molecular compounds which retain their identity in solid state as well as in dissolved state. In these compounds . the central metal atom or ion is linked by ions or molecules with coordinate bonds. e.g., Potassium ferrocyanide, K4 [Fe(CN)6]. Coordination compound - Ligands, Metal Ions, Bonding: Coordination compounds have been studied extensively because of what they reveal about molecular structure and chemical bonding, as well as because of the unusual chemical nature and useful properties of certain coordination compounds . The general class of coordination compounds —or complexes, as they are sometimes called—is extensive and diverse. The substances in the class may be composed of electrically neutral molecules or of ... The coordination compounds formed by the transition elements are coloured due to the presence of unpaired electrons that absorb light in their electronic transitions. For example, the complexes containing Iron (II) can exhibit green and pale green colours, but the coordination compounds containing iron (III) have a brown or yellowish-brown colour. When the coordination centre is a metal, the corresponding coordination complexes have a magnetic nature due to the presence of unpaired electrons ... Coordination Compounds - Introduction, Important Terms, Properties, Classification, Ligands, IUPAC Nomenclature, Isomerism and Applications in Chemistry : Definition ...