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镧系元素功能化过氧双膦酸盐的合成、结构和发光性质。

Synthesis, structure, and luminescent properties of a family of lanthanide-functionalized peroxoniobiophosphates.

机构信息

Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan, 475004, P. R. China.

出版信息

Sci Rep. 2017 Sep 6;7(1):10653. doi: 10.1038/s41598-017-10811-2.

DOI:10.1038/s41598-017-10811-2
PMID:28878281
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5587641/
Abstract

Eight new lanthanide derivatives containing 6-peroxoniobio-4-phosphate building block, [Ln(HO)][H(NbO)PO]·nHO [Ln = Eu (1), Gd (2), Tb (3), Dy (4), Ho (5), Er (6), Tm (7), Yb (8), 1-5, 7, 8 n = 12; 6 n = 9], have been successfully obtained using an in-situ strategy and fully characterized in the solid state by single-crystal X-ray diffraction, IR spectra, TG-MS, PXRD. Structural analyses indicate that these isostructural polyanions 1-8 consist of one [P(NbO)O] (P (NbO ) ) clusters and two pendant Ln cations. In these compounds, P (NbO ) clusters are connected by lanthanide cations to form extended two-dimensional architectures. The approach takes advantage of the ability of in-situ formed P (NbO ) cluster to build frameworks by using it as ligands to lanthanide ions. The photoluminescence (PL) and lifetime decay behaviors of 1, 3 and 4 in solid state have been performed at room temperature. The PL emission of 1, 3 and 4 is mainly derived from the characteristic D→F (J = 1, 2, 3, 4), D→F (J = 6, 5, 4, 3) and F→H (J = 15/2, 13/2, 11/2) transitions of the Eu, Tb and Dy cations, respectively.

摘要

八个新的含 6-过氧铌-4-磷酸盐构筑单元的镧系元素衍生物，[Ln(HO)][H(NbO)PO]·nH2O [Ln = Eu (1), Gd (2), Tb (3), Dy (4), Ho (5), Er (6), Tm (7), Yb (8), 1-5, 7, 8 n = 12; 6 n = 9]，已经通过原位策略成功获得，并通过单晶 X 射线衍射、IR 光谱、TG-MS、PXRD 在固态下进行了全面表征。结构分析表明，这些等结构的多阴离子 1-8 由一个[P(NbO)O]（P (NbO ) ）簇和两个悬挂的 Ln 阳离子组成。在这些化合物中，P (NbO ) 簇通过镧系元素阳离子连接形成扩展的二维结构。该方法利用原位形成的 P (NbO ) 簇作为配体与镧系元素离子形成框架的能力。在室温下对 1、3 和 4 在固态下的光致发光（PL）和寿命衰减行为进行了研究。1、3 和 4 的 PL 发射主要来自 Eu、Tb 和 Dy 阳离子的特征 D→F（J = 1、2、3、4）、D→F（J = 6、5、4、3）和 F→H (J = 15/2、13/2、11/2) 跃迁。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/c7c95339a47c/41598_2017_10811_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/acff2c6f847b/41598_2017_10811_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/f77497a39fe9/41598_2017_10811_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/35e92727aeb4/41598_2017_10811_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/7dbbc254a6bd/41598_2017_10811_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/17773c7fbd43/41598_2017_10811_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/56be3f8fbe34/41598_2017_10811_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/c7c95339a47c/41598_2017_10811_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/acff2c6f847b/41598_2017_10811_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/f77497a39fe9/41598_2017_10811_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/35e92727aeb4/41598_2017_10811_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/7dbbc254a6bd/41598_2017_10811_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/17773c7fbd43/41598_2017_10811_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/56be3f8fbe34/41598_2017_10811_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d4ee/5587641/c7c95339a47c/41598_2017_10811_Fig7_HTML.jpg

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