Complexes of Transition Metal Ions With Multidentateorganic Ligands Have Been the Subject of Intensive Research Because They Notonly Have Interesting Spectral and Magnetic Properties, But They Also Possess Adiverse Spectrum of Biological Activities. These Complexes Often Possessremarkable and Unique Spectroscopic, Photo Physical and Electrochemical Properties,Which May Be Exploited In Sensory and Diagnostic Applications, and There Havebeen a Number of Reviews on the Utilization of Transition Metal Complexes Asion and Molecular Sensors. Based on the Widely Diverse Coordination Environmentof the Transition Metal Complexes, and Variation In the Identities of Thecoordinating Ligands, Synthesis of Such Complexes With Desired Moleculargeometry Can Be Realized.