Adjustment of coordination environment of Ln3+ ions to modulate near-infrared luminescent properties of Ln3+ complexes

Yani Hui, Weixu Feng, Tao Wei, Xingqiang Lü*, Jirong Song, Shunsheng Zhao, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

With the Zn-Schiff-base [ZnL(Py)] from the pure Salen-type Schiff-base ligand H2L (H2L = N,N′-bis(salicylidene)ethylene-1, 2-diamine) as the precursor, a series of hetero-trinuclear Zn2Ln complexes [Zn2Ln(L)2(NO3)2(SCN)(Py) 2] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3 and Ln = Gd, 4) are obtained by the further reaction with Ln(NO3)3•6H2O and KSCN on the condition of stoichiometry control, respectively. The influence of molecular structures on the photophysical properties shows their NIR luminescent properties are hypersensitive to the composition and symmetry of the coordination environments of Ln3+ ions bonded with the mixed anions, which provides a wide variety of means to modulate the NIR luminescence of Ln3+ complexes.

Original languageEnglish
Pages (from-to)200-204
Number of pages5
JournalInorganic Chemistry Communication
Volume14
Issue number1
DOIs
Publication statusPublished - Jan 2011

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Adjustment of coordination environment
  • Modulation of NIR luminescence
  • Sensitization and energy transfer
  • ZnLn arrayed Schiff-base complexes

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