A push-pull unsymmetrical subphthalocyanine dimer

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dc.contributor.author Zango, Germán
dc.contributor.author Zirzlmeier, Johannes
dc.contributor.author Claessens, Christian G.
dc.contributor.author Clark, Timothy
dc.contributor.author Martínez-Díaz, M. Victoria
dc.contributor.author Guldi, Dirk M.
dc.contributor.author Torres, Tomás
dc.contributor.other UAM. Departamento de Química Orgánica es_ES
dc.date.accessioned 2016-05-23T14:41:33Z
dc.date.available 2016-05-23T14:41:33Z
dc.date.issued 2015-06-16
dc.identifier.citation Chemical Science 6. 10 (2015):5571-5577 en_US
dc.identifier.issn 2041-6520 (print) es_ES
dc.identifier.issn 2041-6539 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/671021
dc.description.abstract Unsymmetrical subphthalocyanine fused dimers have been prepared from appropriate ortho-dinitrile SubPc precursors. In particular, either electron-donating or electron-accepting substituents have been introduced on each SubPc constituent unit, resulting in unprecedented push-pull π-extended curved aromatic macrocycles. From fluorescence experiments in solvents of different polarity we conclude a dual fluorescence, namely a delocalized singlet excited state (1.73 eV) and a polarized charge transfer state (<1.7 eV). Pump probe experiments corroborate the dual nature of the fluorescence. On one hand, the delocalized singlet excited state gives rise to a several nanosecond lasting intersystem crossing yielding the corresponding triplet excited state. On the other hand, the polarized charge transfer state deactivates within a few picosesonds. Visualization of the charge transfer state was accomplished by means of molecular modeling with a slight polarization of the HOMO towards the electron donor and of the LUMO towards the electron acceptor en_US
dc.description.sponsorship This work was supported by the Spanish MINECO (CTQ2014- 52869-P), by the Comunidad de Madrid (S2013/MIT-2841, FOTOCARBON), by the Deutsche Forschungsgemeinschaft as part of the Excellence Cluster Engineering of Advanced Materials and SFB953 Synthetic Carbon Allotropes, and by the Bavarian State Government as part of the Solar Technologies go Hybrid initiative en_US
dc.format.extent 7 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher The Royal Society of Chemistry en_US
dc.relation.ispartof Chemical Science en_US
dc.rights © The Royal Society of Chemistry 2015 en_US
dc.subject.other Charge transfer en_US
dc.subject.other Dimers en_US
dc.subject.other Electrons en_US
dc.subject.other Fluorescence en_US
dc.subject.other Steel beams and girders en_US
dc.subject.other Charge transfer state en_US
dc.subject.other Electron acceptor en_US
dc.title A push-pull unsymmetrical subphthalocyanine dimer en_US
dc.type article en
dc.subject.eciencia Química es_ES
dc.relation.publisherversion http://dx.doi.org/10.1039/c5sc01709b es_ES
dc.identifier.doi 10.1039/c5sc01709b es_ES
dc.identifier.publicationfirstpage 5571 es_ES
dc.identifier.publicationissue 10 es_ES
dc.identifier.publicationlastpage 5577 es_ES
dc.identifier.publicationvolume 6 es_ES
dc.relation.projectID Comunidad de Madrid. S2013/MIT-2841/FOTOCARBON es_ES
dc.relation.projectID Gobierno de España. CTQ2014- 52869-P es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.cc Reconocimiento es_ES
dc.rights.accessRights openAccess en
dc.authorUAM Zango Casado, German (278876)


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