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Article
Hetero-binuclear near-infrared (NIR) luminescent Zn-Nd complexes self-assembled from the benzimidazole-based ligands
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
  • Dan Zou, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Weixu Feng, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Guoxiang Shi, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Xingqiang Lü, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Zhao Zhang, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Yao Zhang, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Han Liu, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Daidi Fan, Shaanxi Key Laboratory of Degradable Medical Material, Northwest University
  • Wai-Kwok Wong, Department of Chemistry, Hong Kong Baptist University
  • Richard A. Jones, Department of Chemistry and Biochemistry, University of Texas at Austin, 1 University Station A5300
Document Type
Journal Article
Language
English
Abstract
With the compound [Zn(HL1)2(Py)] (H2L 1 = 2-(1H-benzo[d]imidazol-2-yl)-6-methoxyophenol), Py = pyridine) or [Zn(HL2)2(Py)] (H2L2 = 2-(1H-benzo[d]imidazol-2-yl)-4-bromo-6-methoxyphenol) as the precursor, complexes [ZnLn(HL1)2(Py)(NO3)3] (Ln = Nd, 1; Ln = Gd, 2) or [ZnLn(HL2)2(Py)(NO 3)3] (Ln = Nd, 3; Ln = Gd, 4) were obtained by the further reaction with Ln(NO3)3·6H2O (Ln = Nd or Gd). The result of their photophysical properties shows that the strong and characteristic near-infrared (NIR) luminescence of Nd3+ ions for complexes 1 and 3 with emissive lifetimes in microsecond range, has been sensitized from the excited state (1LC and 3LC) of the benzimidazole-based ligands, and the involvement of heavy atoms (Br) at the ligand endows the enhanced NIR luminescent property. © 2012 Elsevier B.V. All rights reserved.
Keywords
  • Sensitization and energy transfer,
  • UV-vis absorption,
  • Visible and NIR luminescence,
  • Zn-Ln arrayed benzimidazole-based complexes
Publication Date
1-1-2012
Publisher
Elsevier
DOI
10.1016/j.saa.2012.08.048
Link to Publisher's Edition
http://dx.doi.org/10.1016/j.saa.2012.08.048
Citation Information
Dan Zou, Weixu Feng, Guoxiang Shi, Xingqiang Lü, et al.. "Hetero-binuclear near-infrared (NIR) luminescent Zn-Nd complexes self-assembled from the benzimidazole-based ligands" Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Vol. 98 (2012) p. 359 - 366 ISSN: 13861425
Available at: http://works.bepress.com/zhao-zhang/9/