Conformation-controlled luminescent properties of lanthanide clusters containing p-tert-butylsulfonylcalix[4]arene

Takashi Kajiwara, Kensuke Katagiri, Miki Hasegawa, Ayumi Ishii, Marilena Ferbinteanu, Shinya Takaishi, Tasuku Ito, Masahiro Yamashita, Nobuhiko Iki

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Dinuclear and cubane-shaped lanthanide cluster complexes containing Eu III and TbIII were synthesized by step-by-step construction using p-tert-butylsulfonylcalix[4]arene as a cluster-forming ligand. The sulfonylcalixarene adopts a pinched-cone conformation in the dinuclear complexes and a cone conformation in the cubane complexes. Because the calixarene has a large π-conjugate system expanding over the entire molecule, it behaves as a good antenna chromophore for UV and near-UV light, and a slight conformational change of the calixarene (from cone to pinched-cone and vice versa) has an effect on the energy levels of excited S1 and T1 states. As a result, selectivity is observed in the luminescent properties of dinuclear and cubane-shaped systems of EuIII and TbIII.

Original languageEnglish
Pages (from-to)4880-4882
Number of pages3
JournalInorganic chemistry
Volume45
Issue number13
DOIs
Publication statusPublished - 2006 Jun 26

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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