Oxomolybdenum(VI) and (IV) complexes of pyrazole derived ONO donor ligands – synthesis, crystal structure studies and spectroelectrochemical correlation - Gupta, Samik; Barik, Anil Kumar; Pal, Sachindranath; Hazra, Arijit; Roy, Somnath; Butcher, Ray J.; Kar, Susanta Kumar (Polyhedron, 2007)