The Reactivity of the Imine Bond within Polynuclear Nickel(II) Complexes

Magdalena Siedzielnik, Dimitrios A. Pantazis, Jakub Bruniecki, Kinga Kaniewska-Laskowska, Anna Dołęga
2021 Crystals  
Three novel Ni complexes with the Schiff base ligand 2-methoxy-6-(E-2-pyridyliminomethyl)-phenol (L1) are described. In comparison with the similar 2-(pyridine-2-ylimino-methyl)phenol (pymp), the mode of coordination of L1 is altered due to the presence of methoxy substituent introducing the sterical hindrance. During the synthesis of the complexes, partial hydrolysis of the ligand was observed. Since such immediate hydrolysis of L1 was not detected during the reactions of Zn(II) and Cu(II)
more » ... (II) and Cu(II) salts with L1, the DFT calculated structures of a series of similar Zn, Cu, Ni, and Co complexes with L1 are compared to account for the phenomenon.
doi:10.3390/cryst11050512 fatcat:z54v6o4w75hp3ppad6a4qdhxfi