Cu(II), Ni(II), and Co(II) Complexes of Tetradentate Azomethine Ligands: Chemical and Electrochemical Syntheses, Crystal Structures, and Magnetic Properties

• Published in: Russian journal of coordination chemistry 2019-12, Vol.45 (12), p.867-875
• Main Authors: Lifintseva, T. V., Burlov, A. S., Vlasenko, V. G., Koshchienko, Yu. V., Garnovskii, D. A., Mashchenko, S. A., Levchenkov, S. I., Lazarenko, V. A., Khrustalev, V. N., Trigub, A. L.
• Format: Article
• Language: English
• Subjects: Benzaldehyde; Chelates; Chemical analysis; Chemical synthesis; Chemistry; Chemistry and Materials Science; Condensates; Coordination compounds; Copper; Crystal structure; Infrared analysis; Infrared spectroscopy; Inorganic Chemistry; Ligands; Magnetic properties; Magnetochemistry; Nickel; Nitrogen atoms; Organic chemistry; Physical Chemistry; Spectroscopic analysis; Spectrum analysis; Tetrahedra; X ray absorption; X-ray spectroscopy
• ISSN: 1070-3284; 1608-3318
• DOI: 10.1134/S1070328419120054

Complexes CuL 1 ⋅ MeOH ( Ia ), NiL 1 ⋅ MeOH ( Ib ), CоL 1 ⋅ MeOH ( Ic ), CuL 2 ( IIa ), NiL 2 ( IIb ), and CоL 2 ( IIc ) of the tetradentate azomethine compounds, namely, 4-methyl- N -[2-[( E )-2-[2-[2-[( E )-[2-( p -toluenesulfamino)phenyl]methyleneamino]ethoxy]ethyliminomethyl]phenyl]benzenesulfamide (H 2 L 1 ) and 4-methyl- N -[2-[( E )-3-[4-[3-[( E )-[2-( p -toluenesulfamino)phenyl]methyleneamino]propoxy]butoxy]-propyliminomethyl]phenyl]benzenesulfamide (H 2 L 2 ), which are the condensation products of 2-( N -tosylamino)benzaldehyde with 3,4-dioxa-1,8-octanediamine and 4,9-dioxa-1,12-dodecanediamine, are synthesized using the chemical and electrochemical methods. The structures, compositions, and properties of the synthesized metal complexes are studied by the methods of elemental analysis, IR spectroscopy, X-ray absorption spectroscopy, magnetochemistry, and X-ray diffraction analysis (СIF files CCDC nos. 1910746 ( Ia ), 1910747 ( Ib ), and 1910748 ( Ic )). In the molecules of compounds Ia – Ic , the L 1 macrocyclic ligand coordinates the metal atom by four nitrogen atoms via the tetradentate chelate mode to form the polyhedron as a distorted tetrahedron.