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dc.contributor.authorCastillo González, Carmen Esther 
dc.contributor.authorGonzález-García, Jorge
dc.contributor.authorLlinares, José M.
dc.contributor.authorMáñez Muñoz, María Ángeles 
dc.contributor.authorR. Jimenez, Hermas
dc.contributor.authorGarcía España, Enrique
dc.contributor.authorGarcía Basallote, Manuel 
dc.contributor.otherCiencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánicaen_US
dc.date.accessioned2018-05-10T12:39:54Z
dc.date.available2018-05-10T12:39:54Z
dc.date.issued2013
dc.identifier.urihttp://hdl.handle.net/10498/20485
dc.description.abstractPotentiometric studies carried out on the interaction of two tritopic double-scorpiand receptors in which two equivalent 5-(2-aminoethyl)-2,5,8-triaza[9]-(2,6)-pyridinophane moieties are linked with 2,9- dimethylphenanthroline (L1) and 2,6-dimethylpyridine (L2) establish the formation of mono-, bi- and trinuclear Cu2+ complexes. The values of the stability constants and paramagnetic 1H NMR studies permit one to infer the most likely coordination modes of the various complexes formed. Kinetic studies on complex formation and decomposition have also been carried out. Complex formation occurs with polyphasic kinetics for both receptors, although a significant difference is found between both ligands with respect to the relative values of the rate constants for the metal coordination steps and the structural reorganizations following them. Complex decomposition occurs with two separate kinetic steps, the first one being so fast that it occurs within the stopped-flow mixing time, whereas the second one is slow enough to allow kinetic studies using a conventional spectrophotometer. As a whole, the kinetic experiments also provide information about the movement of the metal ion within the receptors. The differences observed between the different receptors can be interpreted in terms of changes in the network of hydrogen bonds formed in the different species.en_US
dc.formatapplication/pdfen_US
dc.language.isoengen_US
dc.publisherRSC Publishingen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceDalton Transactions 2013, 42, 6131ven_US
dc.titleEquilibrium and kinetic studies on complex formation and decomposition and the movement of Cu2+metal ions within polytopic receptorsen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.identifier.doi10.1039/c3dt32220c


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional