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dc.contributor.authorRomerosa Nievas, Antonio Manuel
dc.contributor.authorScalambra, Franco
dc.contributor.authorSerrano Ruiz, Manuel
dc.date.accessioned2017-03-22T10:21:08Z
dc.date.available2017-03-22T10:21:08Z
dc.date.issued2016-03-06
dc.identifier.urihttp://hdl.handle.net/10835/4693
dc.description.abstractThe water soluble complexes cis-[Ru(bpy)2(PTA)2]Cl2 (1Cl2), cis-[Ru(bpy)2(PTA)2](PF6)2 (1(PF6)2), trans-[Ru(bpy)2(PTA)2](CF3SO3)2 (2(CF3SO3)2), cis-[Ru(bpy)2(PTA)(H2O)](CF3SO3)2 (3(CF3SO3)2), cis-[Ru(bpy)2(PTAH3)(H2O)](CF3SO3)5 (4(CF3SO3)5), cis-[Ru(bpy)2(PTAH3)2](CF3SO3)8 (5(CF3SO3)8) and trans-[Ru(bpy)2(PTAH3)2](CF3SO3)8 (6(CF3SO3)8) have been synthesized and characterized by elemental analysis, NMR and IR spectroscopy. The crystal structures of 1(PF6)2, 2(CF3SO3)2, 4(CF3SO3)5 were obtained by single-crystal X-ray diffraction. Both experimental and computational techniques were utilized to perform a thorough analysis of the structural and electronic properties of the complexes 1 and 2 in water in both the deprotonated and protonated state and under N2 and air. UV/Visible absorbance spectroscopy revealed the sensitiveness of complex 1 and 2 to the pH. Both Ligand-to-Metal Charge Transfer (LMCT) and Metal-to-Ligand/Ligand-to-Ligand Charge Transfer (MLCT/LLCT) transisions were observed in the absorption spectrum. Luminescence studies showed that these complexes are active fluorescence compounds, despite the presence of monofosfines in their structure. The pH sensitiveness of the emission band of both complexes was studied. The photohydrolisis of 1 and 2 in acid water solution was also studied, showing that both complexes release a PTA molecule under selective irradiation in acidic water to give rise to the complex 4. Cyclic voltammetry showed that, in water, irreversible anodic oxidation corresponding to the Ru(II)/Ru(III) redox process occurs for 1, whereas for 2 the process is quasi-reversible. In DMF the redox Ru(II)/Ru(III) wave for both complexes are irreversible and occur at lower potential than in water.es_ES
dc.language.isoenes_ES
dc.relationinfo:eu-repo/grantAgreement/ES/MINECO/CTQ2015-67384-R/ES/Polímeros poliheteroorganmetálicos fluorecentes solubles en agua/PPFSAes_ES
dc.sourceEuropean Journal of Inorganic Chemistry, 2016, núm. 10, pp. 1528-1540es_ES
dc.subjectQuimicaes_ES
dc.titleRuthenium complexes containing 2,2'-bipyridine and PTA (PTA = 1,3,5-triaza-7-phosphaadamantane)es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://www.interscience.wiley.com/es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1002/ejic.201501357


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