X-ray scintillation and photoluminescence of isomorphic ionic bismuth halides with [Amim]+ or [Ammim]+ cations,Inorganic Chemistry Frontiers

当前位置： X-MOL 学术 › Inorg. Chem. Front. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

X-ray scintillation and photoluminescence of isomorphic ionic bismuth halides with [Amim]+ or [Ammim]+ cations
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2021-08-09 , DOI: 10.1039/d1qi00803j
Jian-Ce Jin _{1,

2} , Yang-Peng Lin ₃ , Da-Yi Chen _{1,

2} , Bing-Ye Lin ₄ , Ting-Hui Zhuang _{1,

3} , Wen Ma ₁ , Liao-Kuo Gong ₁ , Ke-Zhao Du ₃ , Jiang Jiang ₄ , Xiao-Ying Huang _{1,

2}

Affiliation

Three isomorphic ionic bismuth(III) halides were synthesized, utilizing 2,2′-bipyridyl-1,1′-dioxide (bp2do) as the organic ligand decorated on the halobismuthate(III) moieties, namely, [Ammim][BiBr₄(bp2do)] (1, Ammim = 1-allyl-2,3-dimethylimidazolium), [Ammim][BiCl₄(bp2do)] (2) and [Amim][BiCl₄(bp2do)] (3, Amim = 1-allyl-3-methylimidazolium). They all crystallize in the space group of Pca2₁ with a similar supramolecular packing mode. However, the average adjacent Bi–Bi distances are slightly different, that is 1 > 2 > 3. Moreover, they possess different phosphorescence quantum yields (QYs) with 0.38% for 1, 27.83% for 2 and 34.76% for 3. Note that the QY of 3 remains the highest for bp2do-based halobismuthate hybrids. Their phosphorescence originates from the organic ligand bp2do, in which an inorganic-to-organic charge transfer (IOCT) process exists, as confirmed by density functional theory (DFT) calculations. The three compounds possess X-ray scintillation properties. Eventually, a WLED could be fabricated by mixing commercial nitride red phosphor with cyan-emitting 3. This study provides a method for the synthesis of organic ligand based ionic bismuth halide hybrids with higher QYs, and enriches X-ray scintillation materials.

中文翻译：

具有 [Amim]+ 或 [Ammim]+ 阳离子的同形离子卤化铋的 X 射线闪烁和光致发光

三个同构离子铋（III）卤化物，合成，利用2,2'-联吡啶-1,1'-二氧化物（bp2do）作为有机配体的装饰上halobismuthate（III）的部分，即，[Ammim] [BIBR ₄（ bp2do)] ( 1 , Ammim = 1-allyl-2,3-二甲基咪唑鎓), [Ammim][BiCl ₄ (bp2do)] ( 2 ) 和 [Amim][BiCl ₄ (bp2do)] ( 3 , Amim = 1-烯丙基-3-甲基咪唑鎓）。它们都以类似的超分子堆积模式在Pca 2 ₁空间群中结晶。然而，平均相邻 Bi-Bi 距离略有不同，即1 > 2 >3 . 此外，它们具有不同的磷光量子产率 (QY)，1为 0.38% ，2为27.83 %，3为34.76% 。请注意，3的 QY仍然是基于 bp2do 的卤化铋杂合物的最高值。它们的磷光源自有机配体 bp2do，其中存在无机到有机电荷转移 (IOCT) 过程，密度泛函理论 (DFT) 计算证实了这一点。这三种化合物具有 X 射线闪烁特性。最终，可以通过将商用氮化物红色磷光体与青色发射3混合来制造 WLED。. 该研究为合成具有更高QYs的有机配体基离子卤化铋杂化物提供了一种方法，并丰富了X射线闪烁材料。

更新日期：2021-08-25

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11