两种具有强各向异性、大带隙和 α-BBO 型结构的紫外光学晶体。
Two UV optical crystals with strong optical anisotropy, large band gaps and an α-BBO type structure.
机构信息
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
出版信息
Dalton Trans. 2023 May 2;52(17):5798-5803. doi: 10.1039/d3dt00581j.
The [BO] group has attracted a lot of attention as α-BaBO (α-BBO) is composed of the [BO] group showing a short UV cut-off edge and a large birefringence. However, it is difficult to synthesize novel crystals with properties beyond α-BBO using [BO] as a fundamental building block (FBB). Hence, we successfully synthesized two cases of α-BBO-type organic-inorganic hybrid compounds using α-BBO as the template and melamine [CNH] as the fundamental building block. The coplanar and parallel arrangement of π-conjugated [CNH] groups makes them exhibit excellent optical properties, including improved birefringence responses (0.264 and 0.243@546 nm) and wide bandgaps (4.12 and 4.20 eV).
[BO] 基团吸引了大量关注，因为 α-BaBO（α-BBO）由 [BO] 基团组成，具有较短的紫外截止边缘和较大的双折射。然而，使用 [BO] 作为基本构建块 (FBB) 很难合成具有超越 α-BBO 性能的新型晶体。因此，我们成功地使用 α-BBO 作为模板和三聚氰胺 [CNH] 作为基本构建块合成了两种 α-BBO 型有机-无机杂化化合物。π 共轭 [CNH] 基团的共面和平行排列使它们表现出优异的光学性能，包括改善的双折射响应（0.264 和 0.243@546nm）和宽能带隙（4.12 和 4.20eV）。
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