Nickel(II) complexes based on L-amino-acid-derived ligands: Synthesis, characterization and study of the role of the supramolecular structure in carbon dioxide capture

Rivas Marquina A, Movilla F, Sanchez Montilva OC, Rentschler E, Carrella L, Albores P, Di Salvo F (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials International Union of Crystallography

Book Volume: 76

Pages Range: 825-838

DOI: 10.1107/S2052520620010008

Abstract

The formation of the symmetrical μ3-carbonate-bridged self-assembled trinuclear Ni^II complex Na2{[Ni(LO)2(H2O)]3(μ3-CO3)} (LO is the carboxylate anion of a l-tyrosine derivative), involves atmospheric CO2 uptake. The asymmetric unit of the complex comprises an octahedral coordination for the Ni^II with two l-tyrosine-based ligands, a water molecule and one O atom of the carbonate bridge. The Ni3-μ3-CO3 core in this compound is the first reported of this kind according to the Cambridge Structural Database (CSD). The supramolecular structure is mainly sustained by hydrogen bonds developed by the phenolic functionality of the l-tyrosine moiety of one ligand and the carboxylate group of a neighbouring ligand. The crystal packing is then characterized by three interpenetrated supramolecular helices associated with a diastereoisomer of the type R-^supP, which is essential for the assembly process. Magnetic susceptibility and magnetization data support weak ferromagnetic exchange interactions within the novel Ni3-μ3-CO3 core. The Ni^II complex obtained under the same synthetic conditions but using the analogous ligand derived from the amino acid l-phenylalanine instead of l-tyrosine gives rise to to a mononuclear octahedral system. The results obtained for the different complexes demonstrate the role of the supramolecular structure regarding the CO2 uptake property for these Ni^II-amino-acid-based systems.

Involved external institutions

Universidad de Buenos Aires (UBA) / University of Buenos Aires

Argentina (AR) Johannes Gutenberg-Universität Mainz (JGU)

Germany (DE)

How to cite

APA:

Rivas Marquina, A., Movilla, F., Sanchez Montilva, O.C., Rentschler, E., Carrella, L., Albores, P., & Di Salvo, F. (2020). Nickel(II) complexes based on L-amino-acid-derived ligands: Synthesis, characterization and study of the role of the supramolecular structure in carbon dioxide capture. Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 76, 825-838. https://doi.org/10.1107/S2052520620010008

MLA:

Rivas Marquina, Andrea, et al. "Nickel(II) complexes based on L-amino-acid-derived ligands: Synthesis, characterization and study of the role of the supramolecular structure in carbon dioxide capture." Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials 76 (2020): 825-838.

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