A designer ligand field for blue-green luminescence of organoeuropium(II) sandwich complexes with cyclononatetraenyl ligands

Kenshiro Kawasaki, Rion Sugiyama, Takashi Tsuji, Takeshi Iwasa, Hironori Tsunoyama, Yoshiyuki Mizuhata, Norihiro Tokitoh, Atsushi Nakajima

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10 Citations (Scopus)


A novel η9-coordinated double-decker sandwich complex of divalent europium is synthesized. The complex exhibits blue-green photoluminescence at 516 nm, which is significantly blue-shifted from those of other organoeuropium(II) sandwich complexes (∼630 nm). The blue-shift was quantitatively explained by the weakened electrostatic field of the expanded 10-π ring.

Original languageEnglish
Pages (from-to)6557-6560
Number of pages4
JournalChemical Communications
Issue number49
Publication statusPublished - 2017


ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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