2D l-Di-toluoyl-tartaric acid Lanthanide Coordination Polymers: Toward Single-component White-Light and NIR Luminescent Materials.
2D l-Di-toluoyl-tartaric acid Lanthanide Coordination Polymers: Toward Single-component White-Light and NIR Luminescent Materials.
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DOI：
10.1002/asia.201501191
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发表时间：
2016-02
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影响因子：
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通讯作者：
Wanying Niu;Jingwen Sun;Pengfei Yan;Yuxin Li;Guanghui An;Guangming Li
中科院分区：
文献类型：
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作者：
Wanying Niu;Jingwen Sun;Pengfei Yan;Yuxin Li;Guanghui An;Guangming Li
合成了五种1-二对甲苯甲酰基酒石酸（1-DTTA）镧系配位聚合物{[Ln_4K（4）L_6（H_2 O）_x ]_xH_2 O}_n，[Ln=Dy（1），x=24，y=12; Ln=Ho（2），x=23，y=12; Ln=Er（3），x=24，y=12; Ln=Yb（4），x=24，y=11; Ln=Lu（5），x=24，y=12]是通过H_2L（H_2L = L-DTTA）与LnCl_3·6H_2O在室温下的简单反应分离出来的。X-射线衍射分析表明，配合物1-5具有二维网络结构，其中Ln（3+）离子以两种独特的配位方式被配体的羧酸根桥联。发光光谱表明，配合物1在室温下实现了单组分白光发射，而配合物2-4在室温下固态下表现出特征的近红外（NIR）发光。
A series of five l-di-p-toluoyl-tartaric acid (l-DTTA) lanthanide coordination polymers, namely {[Ln4 K(4) L6 (H2O)x ]⋅yH2 O}n , [Ln=Dy (1), x=24, y=12; Ln=Ho (2), x=23, y=12; Ln=Er (3), x=24, y=12; Ln=Yb (4), x=24, y=11; Ln=Lu (5), x=24, y=12] have been isolated by simple reactions of H2L (H2 L= L-DTTA) with LnCl3 ⋅6 H2O at ambient temperature. X-ray crystallographic analysis reveals that complexes 1-5 feature two-dimensional (2D) network structures in which the Ln(3+) ions are bridged by carboxylate groups of ligands in two unique coordinated modes. Luminescent spectra demonstrate that complex 1 realizes single-component white-light emission, while complexes 2-4 exhibit a characteristic near-infrared (NIR) luminescence in the solid state at room temperature.