W0165

Synthesis and Characterization of Complexes of Pyrazole and Pyridine Donor Ligands. Kowsilla P. Pillay¹, Yilma Gultneh and Ray J. Butcher, Chemistry Dept., Howard University, Washington, DC 20059 USA, ¹Graduate Student, Department of Chemistry, Howard University, Washington DC 20059 USA

Our work involves the synthesis and structural studies of dinuclear complexes of a series of chelating ligands with 3,5-disubstituted pyrazole and pyridyl donor. The ligands and their transition metal (Ni, Cu, Co and Mn) di- and higher nuclear complexes are characterized structurally. The stucture/reactivities of these complexes with redox-active small molecules such as O₂, NOx and SO_x are studied in solution and on electrode surfaces for chemical sensors properties.