Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 12, Issue 12, Pages 1216-1219Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2009.09.024
Keywords
Co-existence of Zn2Er and ZnEr arrayed; Schiff-base chromophores; Energy transfer; Fine-tuning of NIR luminescence
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Funding
- National Natural Science Foundation [20871098]
- Provincial Key Item of Shaanxi
- Provincial Natural Foundation of Shaanxi, Education Committee Foundation of Shaanxi Province [20071303, 07JK391]
- Graduate Cross-discipline Funds [07YJC11]
- Graduate Innovation and Creativity Funds [08YZZ48]
- Hong Kong Research Grants Council [HKBU 202407, FRG/06-07/11-16]
- Robert A. Welch Foundation [F-816]
- Texas Higher Education Coordinating Board [ARP 003658-0010-2006]
- American Chemical Society [47014-AC5]
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With the Zn-Schiff-base [ZnL(Py)] from the simple Salen-type Schiff-base ligand H2L(H2L = N,N'-bis(salicylidene)ethylene-1,2-diamine) as the precursor, two co-crystallized heterometallic (Zn(2)Ln and ZnLn array) complexes [Zn(2)Ln(L)(2)(Py)(2)(NO3)(2)]center dot[ZnLn(L)(Py)(NO3)(3)(H2O)]center dot NO3 center dot mMeOH center dot nS (Ln = Er(1), S = CH3CN, m = 2, n = 1 or Gd(2), S = H2O, m = 1, n = 3) were obtained by the further reaction with Ln(NO3)(3)center dot 6H(2)O, respectively. The result of their photophysical properties shows the intramolecular effective energy transfer has been demonstrated in the Zn2Er and ZnEr arrayed complex 1, and the co-existence of different chromophores should be a potentially new way to the fine-tuning properties of NIR luminescence from Er3+ ions. (C) 2009 Elsevier B.V. All rights reserved.
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