An effective pathway to design and synthesize UV birefringent crystals via rational assembly of π-conjugated [CO 3 ] 2− and [NO 3 ] − triangles
An effective pathway to design and synthesize UV birefringent crystals via rational assembly of π-conjugated [CO 3 ] 2− and [NO 3 ] − triangles
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通过合理组装α-共轭[CO 3 ] 2‐和[NO 3 ] ‐三角形设计和合成紫外双折射晶体的有效途径
DOI：
10.1039/d2tc05374h
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发表时间：
2023
影响因子：
6.4
通讯作者：
Halasyamani, P. Shiv
中科院分区：
文献类型：
--
作者：
Hu, Zhaowei;Liu, Lili;Zhang, Ruixin;Jing, Qun;Wang, Huan;Tian, Jindan;Xu, Jiayue;Halasyamani, P. Shiv
平面Mo3(M=B，C，N)单元通常被认为是新型双折射晶体材料的重要结构成分。同时组装多个结构基元是构建新功能晶体的有效途径。通过三种阴离子基团的结合，合成了两个化合物：Na3Rb6(CO3)3(NO3)2X·6H2O(X=Br1和Cl2)。更有趣的是，Na_3Rb_6(CO_3)_3(NO_3)_2X·6H_2O中的[CO_3]_2−基团和[NO_3]_−基团在[NaO_7]13−多面体的辅助下都是共面的，这可以增强各向异性的极化率。Na_3Rb_6(CO_3)_3(NO_3)_2X·6H_2O在1064 nm处具有较大的理论双折射∼0.165，具有较短的紫外截止边∼230 nm。此外，这两种化合物还表现出良好的晶体生长习性。这些性质说明Na3Rb6(CO3)3(NO3)2X·6H2O是一种很有前途的紫外双折射晶体。
Planar MO3 (M = B, C, N) units have frequently been considered important structural components of novel birefringent crystal materials. An efficient approach for constructing new functional crystals is to simultaneously assemble multiple structural motifs together. Two compounds, Na3Rb6(CO3)3(NO3)2X·6H2O (X = Br and Cl), were synthesized by the integration of three kinds of anionic groups. More interestingly, the [CO3]2− and [NO3]− groups in Na3Rb6(CO3)3(NO3)2X·6H2O are all coplanar with the aid of [NaO7]13− polyhedra, which can enhance the anisotropic polarizability. Na3Rb6(CO3)3(NO3)2X·6H2O have a large theoretical birefringence of ∼0.165 at 1064 nm and possess a short UV cut-off edge of ∼230 nm. Additionally, the two compounds exhibit good crystal growth habits. These properties illustrate that Na3Rb6(CO3)3(NO3)2X·6H2O are promising UV birefringent crystals.