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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Color tunable and near white-light emission of two solvent-induced 2D lead(II) coordination networks based on a rigid ligand 1-tetrazole-4-imidazole-benzene
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Color tunable and near white-light emission of two solvent-induced 2D lead(II) coordination networks based on a rigid ligand 1-tetrazole-4-imidazole-benzene

机译：基于刚性配体1-四唑-4-咪唑-苯的两个溶剂诱导的2D Lead（II）配位网络的颜色可调和近白光发射

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摘要

Two new lead(II) coordination polymers, [Pb(NO3)(tzib)](n) (1) and [Pb(tzib) 2] n (2), were successfully synthesized from the reaction of a rigid ligand 1-tetrazole-4-imidazole-benzene (Htzib) and lead(II) nitrate in different solvents. The obtained polymers have been characterized by single-crystal X-ray diffraction analyses, which show that both polymers feature 2D layer structures. The inorganic anion nitrate in 1 shows a mu(2)-kappa O-3:kappa O-3 bridging mode to connect adjacent lead ions into a zigzag chain, and then the organic ligands tzib(-) join the neighboring chains into a 2D layer by a mu(3)-kappa N1:kappa N2:kappa N6 connection mode. In 2, there are two different bridging modes of the tzib(-) ligand: mu(3)-kappa N1:kappa N2:kappa N6 and mu 3-kappa N1:kappa N6 to coordinate the lead ions into a 2D layer structure. Interestingly, both polymers displayed broadband emissions covering the entire visible spectra, which could be tunable to near white-light emission by varying excitation wavelengths.
机译：通过刚性配体1-四唑的反应成功合成了两种新的铅（II）配位聚合物[Pb（NO3）（tzib）]（n）（1）和[Pb（tzib）2] n（2）。 -4-咪唑-苯（Htzib）和硝酸铅（II）在不同的溶剂中。所获得的聚合物已经通过单晶X射线衍射分析进行了表征，这表明两种聚合物都具有二维层结构。 1中的无机硝酸根离子显示出mu（2）-kappa O-3：kappa O-3桥接模式，将相邻的铅离子连接成锯齿形链，然后有机配体tzib（-）将相邻的链结合成二维mu（3）-kappa N1：kappa N2：kappa N6连接模式在图2中，tzib（-）配体有两种不同的桥接模式：mu（3）-kappa N1：kappa N2：kappa N6和mu 3-kappa N1：kappa N6将铅离子配制成2D层结构。有趣的是，两种聚合物都显示出覆盖整个可见光谱的宽带发射，通过改变激发波长，可以将其调谐到近白光发射。

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