Transition metal complexes with 2,6-Di-tert-butyl-p-quinone 1′-phthalazinylhydrazone

2,6-Di- tert -butyl- p -quinone 1′-phthalazinylhydrazone (HL) was synthesized. Quantum-chemical calculations of the energy of possible tautomeric forms of the hydrazone were performed. The complexes of Zn(II), Hg(II), Ni(II), and Cu(II) of ML 2 composition were obtained and studied. The structure of the NiL 2 complex was established by XRD. It was shown by DFT-D3 calculations that the cis -structure of the complex is stabilized due to the interligand dispersion interaction.