Near-infrared (NIR) luminescent homoleptic linear tetranuclear [Ln 4((OH)2-Salophen)4] (Ln = Nd or Yb) complexes self-assembled from the dihydroxylated Salophen ligand

Zhao Zhang, Weixu Feng, Peiyang Su, Lin Liu, Xingqiang Lü*, Daidi Fan, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Through self-assembly of the (OH)2-Salophen H4L (H4L = N, N′-bis(3-hydroxyl salicylidene)benzene-1,2-diamine) with LnCl3·6H2O (Ln = La, Nd, Yb, Er or Gd), series of [Ln4((OH)2-Salophen)4]-arrayed complexes [Ln4(H2L)2(L)2(EtOH)2] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) were obtained, respectively. The result of their photophysical properties shows that the strong and characteristic NIR luminescence for complexes 2-3 with emissive lifetimes in microsecond ranges is observed, and the sensitization arises from the excited state (1LC) of the (OH)2-Salophen ligand despite the luminescent quenching with OH-oscillators around the Ln3 + ions.

Original languageEnglish
Pages (from-to)48-51
Number of pages4
JournalInorganic Chemistry Communication
Publication statusPublished - Oct 2014

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Sensitization for NIR luminescence


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