摘要:
With the [Zn(HL)(2)(Py)] compound from the benzimidazole-based ligand H2L (H2L: 2-(1H-benzo[d]imidazol-2-yl)-6-methoxyohenol) as the precursor, the series of four hetero-binuclear ZnLn arrayed complexes IZnLn(HL)(2)(PONO3)(3)](Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3; Ln = Gd, 4) have been obtained by the further reaction with Ln(NO3)(3)center dot 6H(2)O, respectively. The result of their photophysical properties shows that the strong and characteristic NIR luminescence of Nd3+ or Yb3+ ion with emissive lifetimes in microsecond range, has been sensitized from the excited state ((LC)-L-1 and (LC)-L-3) of the benzimidazole-based ligand. (C) 2012 Elsevier B.V. All rights reserved.