Effect of heavy-atom (Br) at the phenyl rings of Schiff-base ligands on the NIR luminescence of their bimetallic Zn-Nd complexes

Wei Yu Bi, Xing Qiang Lü*, Wen Li Chai, Ji Rong Song, Rick W K WONG, Xiao Ping Yang, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Two heterobimetallic Zn-Nd phenylene-bridged Schiff-base ligands complexes [ZnNdL1(Py)(NO3)3] (1) and [ZnL 2Nd(Py)(NO3)3]·MeCN (2) (Py = pyridine, H2L1 = N,N′-bis-(3-methoxy-salicylidene)phenylene-1, 2-diamine, H2L2= N,N′-bis-5-bromo-3-methoxy- salicylidene)phenylene-1,2-diamine) were obtained. Both 1 and 2 were structurally characterized by X-ray crystallography, and their near-infrared (NIR) luminescent properties were determined. For the two complexes, the occupation of pyri-dine at the axial position of 3d Zn2+ ions could effectively prevent luminescent quenching arising from OH-, NH- or CH oscillators of the solvates around the 4f Nd3+ ions, and the heavy-atom (Br) effect of the Schiff-base ligands on their NIR luminescent properties is also discussed.

Original languageEnglish
Pages (from-to)1795-1800
Number of pages6
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume634
Issue number10
DOIs
Publication statusPublished - Aug 2008

Scopus Subject Areas

  • Inorganic Chemistry

User-Defined Keywords

  • Heavy-atom effect
  • Heterobimetallic Zn-Nd Schiff-base complexes
  • Neodymium
  • NIR luminescent property
  • Zinc

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