Synthesis, Structures, and Photoluminescence of Two Novel Zinc(II) Compounds Containing 2-Acetylpyridine-aminoguanidine

In the reaction of zinc(II) sulfate and chloride salt 2-acetylpyridine-aminoguanidine, two types complex were obtained, i.e., [Zn(H2O)6](H2L)2(SO4)3·3H2O [Zn(L)H2O(SO4)]·H2O, depending on presence LiOAc as deprotonating agent. The physicochemical, structural, photoluminescence properties complexes examined. first complex, obtained in absence LiOAc, Schiff base had role a counter-ion its doubly protonated form, while upon deprotonation, coordination takes place, thus acts tridentate N3 ligand. latter ligand is coordinated through pyridine, azomethine, imino nitrogen aminoguanidine residue, leading to formation fused five-membered chelate rings. Both examined complexes, well itself, show high photoluminescence.