New complexes of Ni(II) and Co(III) with a Schiff-base ligand derived from o-vanillin. Crystal structure, magnetic and catalytic properties of a dissymmetric binuclear nickel(II) complex

Neacsu VA, Maxim C, Madalan AM, Hillebrand M, Gonzalez-Arellano C, Soriano S, Rentschler E, Andruh M (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Polyhedron Elsevier

Book Volume: 150

Pages Range: 77-82

DOI: 10.1016/j.poly.2018.05.007

Abstract

A binuclear complex, [Ni2L2(NO3)(H2O)(CH3CN)]ClO4·CH3CN (1), has been obtained using a Schiff-base ligand (HL) derived from o-vanillin and 4-(2-aminoethyl)morpholine. The crystal structure of 1 has been solved. Both Ni(II) ions are hexacoordinated, but they display different coordination spheres. The exchange interaction between the two nickel ions is antiferromagnetic (J = −7.9 ± 0.2 cm−1; H = −JS1S2), in line with the DFT calculations. Compound 1 has been tested as a catalyst in the epoxidation of various olefins. The reaction of the same ligand with a mixture of cobalt(II) perchlorate and nitrate affords a mononuclear Co(III) complex, [CoL2(H2O)]ClO4·CH3OH (2).

Involved external institutions

University of Bucharest / Universitatea din București RO Romania (RO) Universidad de Alcalá (UAH) ES Spain (ES) Fluminense Federal University / Universidade Federal Fluminense (UFF) BR Brazil (BR) Johannes Gutenberg-Universität Mainz (JGU) DE Germany (DE)

How to cite

APA:

Neacsu, V.A., Maxim, C., Madalan, A.M., Hillebrand, M., Gonzalez-Arellano, C., Soriano, S.,... Andruh, M. (2018). New complexes of Ni(II) and Co(III) with a Schiff-base ligand derived from o-vanillin. Crystal structure, magnetic and catalytic properties of a dissymmetric binuclear nickel(II) complex. Polyhedron, 150, 77-82. https://doi.org/10.1016/j.poly.2018.05.007

MLA:

Neacsu, Vlad Andrei, et al. "New complexes of Ni(II) and Co(III) with a Schiff-base ligand derived from o-vanillin. Crystal structure, magnetic and catalytic properties of a dissymmetric binuclear nickel(II) complex." Polyhedron 150 (2018): 77-82.

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