Your browser doesn't support javascript.
loading
Long-Sought Redox Isomerization of the Europium(III/II) Complex Achieved by Molecular Reorientation at the Interface.
Shokurov, Alexander V; Kutsybala, Daria S; Martynov, Alexander G; Bakirov, Artem V; Shcherbina, Maxim A; Chvalun, Sergei N; Gorbunova, Yulia G; Tsivadze, Aslan Yu; Zaytseva, Anna V; Novikov, Dmitri; Arslanov, Vladimir V; Selektor, Sofiya L.
Afiliación
  • Shokurov AV; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Kutsybala DS; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Martynov AG; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Bakirov AV; Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences , Profsoyuznaya 70 , Moscow 117393 , Russia.
  • Shcherbina MA; Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences , Profsoyuznaya 70 , Moscow 117393 , Russia.
  • Chvalun SN; Enikolopov Institute of Synthetic Polymeric Materials of Russian Academy of Sciences , Profsoyuznaya 70 , Moscow 117393 , Russia.
  • Gorbunova YG; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Tsivadze AY; N.S. Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences , Leninsky pr. 31 , Moscow 119071 , Russia.
  • Zaytseva AV; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Novikov D; N.S. Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences , Leninsky pr. 31 , Moscow 119071 , Russia.
  • Arslanov VV; A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences , Leninsky pr. 31-4 , Moscow 119071 , Russia.
  • Selektor SL; Deutsches Elektronen-Synchrotron, PETRA III , Notkestraße 85 , Hamburg D-22607 Germany.
Langmuir ; 36(6): 1423-1429, 2020 Feb 18.
Article en En | MEDLINE | ID: mdl-31986882
Redox isomerism, that is, the change of a metal cation valence state in organic complexes, can find promising applications in multistable molecular switches for various molecular electronic devices. However, despite a large number of studies devoted to such processes in organic complexes of multivalent lanthanides, redox-isomeric transformations were never observed for europium. In the present work, we demonstrate the unique case of redox isomerization of Eu(III)/Eu(II) complexes on the example of Eu double-decker octa-n-butoxyphthalocyaninate (Eu[(BuO)8Pc]2) under ambient conditions (air and room temperature). It is shown that assumption of the face-on orientation on the aqueous subphase surface, in which two of each phthalocyanine decks in Eu[(BuO)8Pc]2 are located in different media (air and water), leads to the intramolecular electron transfer that results in the formation of a divalent Eu(II) cation in the complex. Lateral compression of the thus-formed monolayer results in the reorientation of bisphthalocyaninate to the edge-on state, in which the ligands can be considered identical, and occurrence of the reverse redox-isomeric transformation into the complex with a trivalent Eu cation. Both redox-isomeric states were directly observed by X-ray absorption near-edge structure spectroscopy in ultrathin films formed under different conditions.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Langmuir Asunto de la revista: QUIMICA Año: 2020 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Langmuir Asunto de la revista: QUIMICA Año: 2020 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos