Synthesis, XAFS and X-ray structural studies of mono- and binuclear metal-chelates of N,O,O(N,O,S) tridentate Schiff base pyrazole derived ligands

• Published in: Journal of molecular structure Vol. 1064; pp. 111 - 121
• Main Authors: Burlov, Anatolii S., Uraev, Ali I., Garnovskii, Dmitrii A., Lyssenko, Konstantin A., Vlasenko, Valery G., Zubavichus, Yan V., Murzin, Vadim Yu, Korshunova, Eugenie V., Borodkin, Gennadii S., Levchenkov, Sergey I., Vasilchenko, Igor S., Minkin, Vladimir I.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05-05-2014
• Subjects: Absorption spectroscopy; Crystal structure; EXAFS and XANES; Infrared radiation; Ligands; Magnetic measurements; Metal complexes; Pyrazole; Schiff bases; Synthesis; X-ray diffraction; X-rays; EXAFS and XANES; X-ray diffraction; Schiff bases; Magnetic measurements; Metal complexes
• ISSN: 0022-2860; 1872-8014
• DOI: 10.1016/j.molstruc.2014.02.019

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•Pyrazole derived N, O, O (N, O, S) tridentate Schiff base ligands and their complexes.•EXAFS spectroscopy and X-ray crystallographic analysis of complexes.•Magnetochemical behavior of binuclear Fe(III) and Cu(II) compounds.
The syntheses of a series of novel N,O,O and N,O,S donor tridentate Schiff base ligands H2L1 and H2L2via the condensation of 1-phenyl-3-methyl-4-formylpyrazol-5-ol(thiol) with 2-hydroxymethylaniline and their Co(II), Ni(II), Cu(II), Fe(III), and Mn(II) complexes are reported. The compounds are characterized by the C, H, N, S, metal elemental analysis, IR spectroscopy; 1H NMR data for ligands, low-temperature magnetic measurements, X-ray absorption spectroscopy. The crystal structures for Ni(II) and Cu(II) coordination compounds with the compositions NiL21 and Cu2L21 are established by X-ray crystallography.