Synthesis, structure and near-infrared (NIR) luminescence of series of Zn 2Ln (Ln = Nd, Yb or Er) complexes based on the Salen-type Schiff-base ligand with the flexible linker

Wei Xu Feng, Ya Ni Hui, Guo Xiang Shi, Dan Zou, Xing Qiang Lü*, Ji Rong Song, Dai Di Fan, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

With the Zn-Schiff-base [ZnL(CH 3CN)] from the Salen-type Schiff-base ligand H 2L (H 2L = N,N′-bis(3-methoxy- salicylidene)cyclohexane-1,2-diamine) with the flexible linker as the precursor, a series of hetero-trinuclear Zn 2Ln complexes [Zn 2Ln(L) 2(Cl) 3] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3; Ln = Gd, 4) are obtained by the further reaction with LnCl 3·6H 2O, respectively. The results of their photophysical studies show that the strong and characteristic NIR luminescence with emissive lifetimes in the microsecond range, has been sensitized from the excited state (both 1LC and 3LC) of the ligand due to the effective intramolecular energy transfer.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalInorganic Chemistry Communication
Volume20
DOIs
Publication statusPublished - Jun 2012

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • NIR luminescent properties
  • Sensitization and energy transfer
  • Zn Ln arrayed Schiff-base complexes

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