期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 14, 期 1, 页码 200-204出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2010.10.022
关键词
Adjustment of coordination environment; Zn(2)Ln arrayed Schiff-base complexes; Sensitization and energy transfer; Modulation of NIR luminescence
资金
- National Natural Science Foundation [20871098]
- State Key Laboratory of Structural Chemistry [20100014]
- Provincial Key Item of Shaanxi
- Northwest University, Hong Kong [09YJC23]
- Research Grants Council [HKBU 202407, FRG/06-07/II-16]
- Robert A. Welch Foundation [F-816]
- Texas Higher Education Coordinating Board [ARP 003658-0010-2006]
With the Zn-Schiff-base [ZnL(Py)] from the pure Salen-type Schiff-base ligand H2L (H2L = N,N'-bis (salicylidene)ethylene-12-diamine) as the precursor, a series of hetero-trinuclear Zn(2)Ln complexes [Zn(2)Ln (L)(2)(NO3)(2)(SCN)(PY)(2)] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3 and Ln = Gd, 4) are obtained by the further reaction with Ln(NO3)(3)center dot 6H(2)O and KSCN on the condition of stoichiometry control, respectively. The influence of molecular structures on the photophysical properties shows their NIR luminescent properties are hypersensitive to the composition and symmetry of the coordination environments of Ln(3+) ions bonded with the mixed anions, which provides a wide variety of means to modulate the NIR luminescence of Ln(3+) complexes. (C) 2010 Elsevier B.V. All rights reserved.
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