Ultrasonic-assisted synthesis, characterization and DNA binding studies of Ru(II) complexes with the chelating N-donor ligand and preparing of RuO2 nanoparticles by the easy method of calcination

Publication date: Available online 1 October 2018Source: Journal of Organometallic ChemistryAuthor(s): Ni-Ni Zhang, Fahime Bigdeli, Qian Miao, Mao-Lin Hu, Ali MorsaliAbstractThe binding of ruthenium(II) complexes of formulation [(η6-p-cymene)RuCl(L1)]PF6 (1) and [(η6-C6H6)RuCl(L1)]PF6 (2), L1= (E)-4-nitro-N-(quinolin-2-ylmethylene)aniline, to calf thymus–DNA (CT-DNA) were investigated via techniques include electronic absorption spectra, fluorescence and redox behavior (cyclic voltammetry) and the results of the analysis of complexes 1 and 2 are compared with the results of complexes 3 and 4, [(η6-p-cymene)RuCl(L1)]PF6 (3) and [(η6-C6H6)RuCl(L2)]PF6 (4), L2=(E)-N-((6-bromopyridin-2-yl)methylene)-4-nitroaniline. Single crystals of the complexes were separated by the slow evaporation method and they were characterized by elemental analysis, 1H NMR and 13C NMR spectroscopy and the thermal studies of them were studied by thermal gravimetric (TG) and differential scanning calorimetry (DSC). Also, it has been shown that the complexes are photosensitive molecules. RuO2 nanoparticles were prepared by calcination of the complexes and it was investigated the influence of the treating by ultrasound on the characteristics of the samples before calcination.Graphical abstract
Source: Journal of Organometallic Chemistry - Category: Chemistry Source Type: research