PMMA-supported hybrid materials doped with highly near-infrared (NIR) luminescent complexes [Zn(L1)(Py)Ln(L2)3] (Ln = Nd, Yb or Er)

Chao Yu, Zhao Zhang, Lin Liu, Hongyan Li, Yani He, Xingqiang Lü*, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Through the self-assembly of a precusor [Zn(L1)(Py)] based on the typical Salen-type Schiff-base ligand H2L1 (H2L1 = N,N′-bis(salicylidene)cyclohexane-1,2-diamine, Py = pyridine), a trifluorinated and acylpyrazole-modified β-diketonate ligand HL2 (HL2 = (Z)-3-methyl-1-phenyl-4-(2,2,2-trifluoro-1-hydroxyethylidene)-1H-pyrazol-5(4H)-one) and LnCl3·6H2O (Ln = La, Nd, Yb, Er or Gd), a series of tris-β-diketonate hetero-binuclear complexes [Zn(L1)(Py)Ln(L2)3] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) were obtained. Notably, complexes 2-4, with good NIR luminescent properties, were doped into PMMA (poly(methyl methacrylate)) matrices, giving the series of PMMA-supported doping hybrid materials PMMA@[Zn(L1)(Py)Ln(L2)3], where the doping not only results in improved thermal stability and film-forming property, but also endows more efficient NIR luminescence even at a doping concentration of up to 100:1.

Original languageEnglish
Pages (from-to)3698-3707
Number of pages10
JournalNew Journal of Chemistry
Volume39
Issue number5
DOIs
Publication statusPublished - 1 May 2015

Scopus Subject Areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

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