"Old dog, new tricks": the lone pair effect inducing divergent optical responses in lead cyanurates containing π-bonds.,Dalton Transactions

当前位置： X-MOL 学术 › Dalton Trans. › 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.)

"Old dog, new tricks": the lone pair effect inducing divergent optical responses in lead cyanurates containing π-bonds.
Dalton Transactions ( IF 3.5 ) Pub Date : 2020-01-07 , DOI: 10.1039/c9dt04313f
Xianghe Meng ₁ , Kaijin Kang , Fei Liang , Jian Tang , Zheshuai Lin , Wenlong Yin , Mingjun Xia

Affiliation

The stereochemically active lone pair (SCALP) effect of Pb2+ plays a vital role in enhancing the nonlinear optical response and engineering the band gap of lead-based materials with intriguing properties. Herein, we combined SCALP Pb2+ cations and π-conjugated (HC3N3O3)2- anions into one structure to investigate the tunable optical properties. Two lead cyanurates, namely, Pb3(HC3N3O3)2(OH)2 (I) and its partly cadmium-substituted analog Pb2Cd(HC3N3O3)2(OH)2 (II) were grown by the mild hydrothermal method. They exhibited greatly narrowed bandgaps and enhanced optical anisotropy resulting from the SCALP effect. In addition, divergent optical responses induced from the involved Pb (6s26p2) and Cd (4d105s2) were elaborated by a combination of experimental and theoretical analyses.

中文翻译：

“老狗，新花招”：孤对效应在含有π键的氰尿酸铅中引起不同的光学响应。

Pb2 +的立体化学活性孤对（SCALP）效应在增强非线性光学响应和设计具有引人入胜特性的铅基材料的带隙方面起着至关重要的作用。在本文中，我们将SCALP Pb2 +阳离子和π-共轭（HC3N3O3）2-阴离子结合到一个结构中，以研究可调谐的光学性能。通过温和的水热法生长了两种氰尿酸铅，即Pb3（HC3N3O3）2（OH）2（I）和部分被镉取代的类似物Pb2Cd（HC3N3O3）2（OH）2（II）。由于SCALP效应，它们的带隙大大缩小，光学各向异性增强。此外，通过实验和理论分析相结合，详细阐述了由所涉及的Pb（6s26p2）和Cd（4d105s2）引起的发散光学响应。

更新日期：2020-02-10

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