Lanthanide-containing metallomesogens with low transition temperatures

Y.T. Yang, K. Driesen, Peter Nockemann, K. Van Hecke, L. Van Meervelt, K. Binnemans

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

Lanthanide-containing liquid crystals exhibiting a mesophase close to room temperature were obtained by adduct formation between a long-chain salicylaldimine Schiff base and tris(2-thenoyltrifluoroacetonato)lanthanide( III) complexes or tris( benzoyltrifluoroacetonato) lanthanide( III) complexes. The mesophase was identified as a smectic A phase. The temperature range of the mesophase was found to decrease over the lanthanide series, and no mesophase was observed for the complexes of the smallest lanthanide ions. The photoluminescence of the europium( III), samarium( III), neodymium( III), and erbium( III) complexes was studied. It is shown that the clearing point can be detected by monitoring the luminescence decay time as a function of the temperature.
Original languageEnglish
Pages (from-to)3698-3704
Number of pages7
JournalChemistry of Materials
Volume18
Issue number16
DOIs
Publication statusPublished - 08 Aug 2006

ASJC Scopus subject areas

  • Materials Science(all)
  • Materials Chemistry

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