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

作者：Cortijo Miguel; Delgado Martinez Patricia; Gonzalez Prieto Rodrigo; Herrero Santiago; Jimenez Aparicio Reyes^*; Perles Josefina; Priego Jose L; Torres M R

来源：Inorganica Chimica Acta, 2015, 424: 176-185.

DOI：10.1016/j.ica.2014.07.063

• Microwave
• Solvothermal
• Nickel
• Ruthenium
• Dinuclear
• Magnetism

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)]center dot 2EtOH (1), [Ni-2(9-atc)(4)(OH2)(py)(4)]center dot 2H(2)O (2 center dot 2H(2)O), and [Ni-2(9-atc)(4)(py)(2)] (3), and two diruthenium compounds, {[Ru2Cl(9-atc)(4)]center dot 2H(2)O}(n) (4) and [Ru-2(9-atc)(4)(EtOH)(2)]center dot 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.

• 出版日期2015-1-1