通过功能单元的协同作用大大增强氟硅酸盐的双折射

IF 6.1 1区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Frontiers Pub Date : 2025-04-08 DOI:10.1039/d5qi00468c

Liang Ma, Yi-Lei Lv, Bing-Wei Miao, Guo-Ren Zhu, Wen-Long Liu, Sheng-Ping Guo, Ru-Ling Tang

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引用次数: 0

摘要

短波紫外光学晶体广泛应用于各个领域。探索有机-无机杂化化合物是发现同时具有大带隙和双折射的晶体材料的有效途径。本文制备了两种新型有机-无机杂化氟硅酸盐（C2H7N4O）2SiF6和（C2H4N4）4ZnSiF6·H2O。（C2H7N4O）2SiF6具有有机-无机杂化氟硅酸盐中最大的带隙和独特的[(C2H7N4O)2SiF6]∞层状结构。（C2H4N4）4ZnSiF6·H2O在已有的有机-无机杂化氟硅酸盐中双折射最大（0.282@0.546 μm）。此外，我们系统地分析了从（C2H4N4） 2SiF6到（C2H4N4）4ZnSiF6·H2O的结构和光学性质的转变。

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Greatly Enhancing Birefringence of Fluosilicate through the Synergy Effect of Functional Units

Short-wave ultraviolet optical crystals are widely used in various fields. Exploring organic-inorganic hybrid compounds is an effective approach for discovering crystal materials simultaneously possessing large band gap and birefringence. In this work, two novel organic-inorganic hybrid fluorosilicates, (C2H7N4O)2SiF6 and (C2H4N4)4ZnSiF6·H2O were obtained. (C2H7N4O)2SiF6 has the largest band gap among organic-inorganic hybrid fluorosilicates and unique [(C2H7N4O)2SiF6]∞ layered structure. (C2H4N4)4ZnSiF6·H2O has the largest birefringence (0.282@0.546 μm) among reported organic-inorganic hybrid fluorosilicates. In addition, we systematically analyze the structural and optical properties transformation from (C2H7N4O)2SiF6 to (C2H4N4)4ZnSiF6·H2O.

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