Selective Formation of Unsymmetric Multidentate Azine-Based Ligands in Nickel(II) Complexes.

ABSTRACT: A mixture of 2-pyridine carboxaldehyde, 4-formylimidazole (or 2-methyl-4-formylimidazole), and NiCl₂·6H₂O in a molar ratio of 2:2:1 was reacted with two equivalents of hydrazine monohydrate in methanol, followed by the addition of aqueous NH₄PF₆ solution, afforded a Ni^II complex with two unsymmetric azine-based ligands, [Ni(HL^H)₂](PF₆)₂ (1) or [Ni(HL^Me)₂](PF₆)₂ (2), in a high yield, where HL^H denotes 2-pyridylmethylidenehydrazono-(4-imidazolyl)methane and HL^Me is its 2-methyl-4-imidazolyl derivative. The spectroscopic measurements and elemental analysis confirmed the phase purity of the bulk products, and the sing

SUBMITTER: Hayibor KM 

PROVIDER: S-EPMC9608849 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature