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

被引：39

作者：

Bi, Wei-Yu ^{[1
]}

Lue, Xing-Qiang ^{[1
,2
]}

Chai, Wen-Li ^{[1
]}

Song, Ji-Rong ^{[1
]}

Wong, Wai-Kwok ^{[2
]}

Yang, Xiao-Ping ^{[3
]}

Jones, Richard A. ^{[3
]}

机构：

[1] NW Univ Xian, Sch Chem Engn, Shaanxi Key Lab Physicoinorgan Chem, Xian 710069, Peoples R China

[2] Hong Kong Baptist Univ, Dept Chem, Hong Kong, Hong Kong, Peoples R China

[3] Univ Texas Austin, Dept Chem & Biochem, Austin, TX 78712 USA

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2008年 / 634卷 / 10期

关键词：

zine; neodymium; heterobimetallic Zn-Nd Schiff-base complexes; NIR luminescent property; heavy-atom effect;

D O I：

10.1002/zaac.200800137

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two heterobimetallic Zn-Nd phenylene-bridged Schiff-base ligands complexes [ZnNdL1(Py)(NO3)(3)] (1) and [(ZnLNd)-Nd-2(Py)(NO3)(3)] center dot 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 pyridine 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.

引用

页码：1795 / 1800

页数：6

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