Ligand dependence of magnetic spin effects on photooxidation of Ru(bpy)3-n(CN)2n type complexes

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dc.contributor.authorFodor, Lajosdeu
dc.contributor.authorÜlveczki, Anikódeu
dc.contributor.authorHorváth, Attiladeu
dc.contributor.authorSteiner, Ulrich
dc.date.accessioned2011-03-24T18:12:40Zdeu
dc.date.available2011-03-24T18:12:40Zdeu
dc.date.issued2002deu
dc.description.abstractPhotoinduced electron transfer reaction from the series of [Ru(bpy)(3-n)(CN)2n](2+-2n) complexes (n=0, 1, 2) to methylviologen has been investigated using external magnetic field modulation in order to obtain relevant kinetic parameters for spin relaxation, backward electron transfer and cage escape of the geminate radical pair. The replacement of one bpy by two cyanide ligands results in an increase of the quenching rate constant and a decrease of the cage escape efficiency. The latter is decreased in a magnetic field and the sensitivity of this effect is weakened by introducing CN- ligands. From the analysis of the magnetic field dependence it can be inferred that with increasing number of CN- ligands, backward electron transfer rate and spin relaxation time in the geminate radical pair exhibit a moderate decrease but that the rate constant of cage escape decreases very strongly.eng
dc.description.versionpublished
dc.format.mimetypeapplication/pdfdeu
dc.identifier.citationFirst publ. in: Inorganica chimica acta 338 (2002), pp. 133-141deu
dc.identifier.doi10.1016/S0020-1693(02)01024-1
dc.identifier.ppn27706581Xdeu
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/9549
dc.language.isoengdeu
dc.legacy.dateIssued2008deu
dc.rightsAttribution-NonCommercial-NoDerivs 2.0 Generic
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/
dc.subjectMixed ligand ruthenium(II) complexesdeu
dc.subjectElectron transfer quenchingdeu
dc.subjectMagnetic field effectsdeu
dc.subject.ddc540deu
dc.titleLigand dependence of magnetic spin effects on photooxidation of [Ru(bpy)3-n(CN)2n](+2-2n) type complexeseng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
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@article{Fodor2002Ligan-9549,
  year={2002},
  doi={10.1016/S0020-1693(02)01024-1},
  title={Ligand dependence of magnetic spin effects on photooxidation of [Ru(bpy)3-n(CN)2n](+2-2n) type complexes},
  volume={338},
  issn={0020-1693},
  journal={Inorganica chimica acta},
  pages={133--141},
  author={Fodor, Lajos and Ülveczki, Anikó and Horváth, Attila and Steiner, Ulrich}
}
kops.citation.iso690FODOR, Lajos, Anikó ÜLVECZKI, Attila HORVÁTH, Ulrich STEINER, 2002. Ligand dependence of magnetic spin effects on photooxidation of [Ru(bpy)3-n(CN)2n](+2-2n) type complexes. In: Inorganica chimica acta. 2002, 338, pp. 133-141. ISSN 0020-1693. Available under: doi: 10.1016/S0020-1693(02)01024-1deu
kops.citation.iso690FODOR, Lajos, Anikó ÜLVECZKI, Attila HORVÁTH, Ulrich STEINER, 2002. Ligand dependence of magnetic spin effects on photooxidation of [Ru(bpy)3-n(CN)2n](+2-2n) type complexes. In: Inorganica chimica acta. 2002, 338, pp. 133-141. ISSN 0020-1693. Available under: doi: 10.1016/S0020-1693(02)01024-1eng
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