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trans to cis photo-isomerization in merocyanine dysprosium and yttrium complexes.
Selvanathan, Pramila; Dorcet, Vincent; Roisnel, Thierry; Bernot, Kévin; Huang, Gang; Le Guennic, Boris; Norel, Lucie; Rigaut, Stéphane.
Afiliação
  • Selvanathan P; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Dorcet V; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Roisnel T; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Bernot K; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Huang G; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Le Guennic B; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Norel L; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
  • Rigaut S; Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France. kevin.bernot@insa-rennes.fr lucie.norel@univ-rennes1.fr stephane.rigaut@univ-rennes1.fr.
Dalton Trans ; 47(12): 4139-4148, 2018 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-29469160
ABSTRACT
We report the synthesis of two lanthanide complexes including a chelating merocyanine (MC) ligand obtained from the reaction of a bis(pyridinemethyl)amine substituted spiropyran with yttrium(iii) or dysprosium(iii) triflate salts, whose structures were confirmed both in the solid state and in solution by single crystal X-ray diffraction studies and NMR investigations. The obtained merocyanine metal complexes can reversibly undergo a photo-triggered transformation consisting of a partial isomerization of the trans-merocyanine ligand to its cis isomer (cis-MC) providing complexes in which the metal-phenolate bond is retained. SQUID magnetometry experiments in combination with ab initio calculations were used to evidence and rationalize the single-molecule magnet behavior of the dysprosium complex and to probe the changes in the dysprosium ion local environment upon photo-isomerization.

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Revista: Dalton Trans Assunto da revista: Química Ano de publicação: 2018 Tipo de documento: Artigo