Dioxidovanadium(V) complexes of a tridentate ONO Schiff base ligand: Structural characterization, quantum chemical calculations and in-vitro antidiabetic activity

Two new dioxidovanadium(V) complexes [V(O)2(L)]Him 1 and [V(O)2(L)]H2Meim 2, incorporating tridentate ligand Nicotinic acid (2-hydroxy-3-methoxy-benzylidene)-hydrazide (H2L) and imidazoles (Him = imidazole and H2Meim = methylimidazole) was substantiated. The crystal structures of both complexes were solved by single-crystal X-ray analysis. In both complexes, the V(V) center is coordinated by ONO donar set of L2- ligand and two oxido groups in a...