Microwave and solvothermal methods for the synthesis of nickel and ruthenium complexes with 9-anthracene carboxylate ligand

Cortijo Montes, Miguel; Delgado-Martínez, Patricia; González Prieto, Rodrigo; Herrero Domínguez, Santiago; Jiménez Aparicio, Reyes; Perles Hernáez, Josefina; Priego Bermejo, José Luis; Torres, Marisa Rosario

Microwave and solvothermal methods for the synthesis of nickel and ruthenium complexes with 9-anthracene carboxylate ligand

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Official URL

https://doi.org/10.1016/J.ICA.2014.07.063

Publication date

2015

Publisher

Elsevier

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URI

https://hdl.handle.net/20.500.14352/92884

Citation

Cortijo, M., Delgado-Martínez, P., González-Prieto, R., Herrero, S., Jiménez-Aparicio, R., Perles, J., Priego, J. L., & Torres. (2015). Microwave and solvothermal methods for the synthesis of nickel and ruthenium complexes with 9-anthracene carboxylate ligand. Inorganica Chimica Acta, 424, 176-185. https://doi.org/10.1016/J.ICA.2014.07.063

Abstract

Microwave and solvothermal activation processes have been explored as tools for the preparation of various nickel and ruthenium complexes. Different reaction conditions are tested using ethanol or water as solvents. Three nickel derivatives, [Ni(9-atc)2(OH2)2(py)2]·2EtOH (1), [Ni2(9-atc)4(OH2)(py)4]·2H2O (2·2H2O), and [Ni2(9-atc)4(py)2] (3), and two diruthenium compounds, {[Ru2Cl(9-atc)4]·2H2O}n (4) and [Ru2(9-atc)4(EtOH)2]·2EtOH (5), are obtained. The crystal structure determination of complexes 1-3 and 5 is also described. Compound 1 displays a 1D extended supramolecular structure with hydrogen bonds involving crystallization solvent molecules. Compound 2 is dimetallic, and both nickel centers show an octahedral coordination environment, whereas complexes 3 and 5 display a typical carboxylate-bridged paddlewheel-type structure with two metal atoms connected by four bridging carboxylate ligands. All compounds show weak antiferromagnetic interactions except 3, where a strong intra-dimer antiferromagnetic coupling is observed. Compound 4 also shows a strong zero field splitting.