First examples of near-infrared luminescent poly(methyl methacrylate)-supported metallopolymers based on Zn2Ln-arrayed schiff base complexes

Tie Zheng Miao, Wei Xu Feng, Zhao Zhang, Pei Yang Su, Xing Qiang Lü*, Ji Rong Song, Dai Di Fan, Rick W K WONG, Richard A. Jones, Cheng Yong Su

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

The first examples of Wolf Type II Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp) 2Ln(NO3)3]} (Ln = La, Nd, Yb, Er, Gd; H 2L = N,N′-bis(salicylidene)ethylene-1,2-diamine; 4-vp = 4-vinylpyridine; MMA = methyl methacrylate) are obtained from the controlled copolymerization of heterotrinuclear Zn2Ln-arrayed complexes [Zn 2(L)2(4-vp)2Ln(NO3)3] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5) with MMA. The strong and characteristic near-infrared (NIR) luminescent Ln3+-centered emission for each of the PMMA-supported poly{MMA-co-[Zn2(L) 2(4-vp)2Ln(NO3)3]} (Ln = Nd, Yb, Er) hybrid materials is retained with somewhat higher intrinsic quantum yields than those of the respective Zn2Ln-arrayed complex. Especially for poly(MMA-co-3), which has more efficient sensitization from both ligand-centered singlet (1LC) and triplet (3LC) states of the chromophores, the concentration self-quenching of Yb3+-based NIR luminescence could be effectively prevented. The first examples of Wolf Type II near-infrared-luminescent Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp)2Ln(NO 3)3]} (H2L = N,N′-bis(salicylidene) ethylene-1,2-diamine; Ln = La, Nd, Yb, Er, Gd; MMA = methyl methacrylate; 4-vp = 4-vinylpridine) are obtained from the controlled copolymerization of MMA with a series of Zn2Ln-arrayed Schiff base complexes [Zn 2(L)2(4-vp)2Ln(NO3)3].

Original languageEnglish
Pages (from-to)2839-2848
Number of pages10
JournalEuropean Journal of Inorganic Chemistry
Issue number17
DOIs
Publication statusPublished - 2014

Scopus Subject Areas

  • Inorganic Chemistry

User-Defined Keywords

  • Copolymerization
  • Lanthanides
  • Luminescence
  • Metallopolymers
  • Schiff bases

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