共价键
联动装置(软件)
双折射
材料科学
金属
纳米技术
结晶学
化学
光学
冶金
物理
有机化学
生物化学
基因
作者
Hui‐Li Zhang,Dongling Jiao,Xiaofei Li,Chao He,Xiu‐Yan Dong,Kai Huang,Jin‐Hua Li,Xing‐Tao An,Qi Wei,Guo‐Ming Wang
出处
期刊:Small
[Wiley]
日期:2024-04-15
标识
DOI:10.1002/smll.202401464
摘要
Abstract Organic–inorganic hybrid linear and nonlinear optical (NLO) materials have received increasingly wide spread attention in recent years. Herein, the first hybrid noncentrosymmetric (NCS) borophosphate, (C 5 H 6 N) 2 B 2 O(HPO 4 ) 2 (4PBP), is rationally designed and synthesized by a covalent‐linkage strategy. 4‐pyridyl‐boronic acid (4 PB) is considered as a bifunctional unit, which may effectively improve the optical properties and stability of the resultant material. On the one hand, 4 PB units are covalently linked with PO 3 (OH) groups via strong B–O–P connections, which significantly enhances the thermal stability of 4PBP (decomposition at 321, vs lower 200 °C of most of hybrid materials). On the other hand, the planar π ‐conjugated C 5 H 6 N units and their uniform layered arrangements represent large structural anisotropy and hyperpolarizability, achieving the largest birefringence (0.156 @ 546 nm) in the reported borophosphates and a second‐harmonic generation response (0.7 × KDP). 4PBP also exhibits a wide transparency range (0.27–1.50 µm). This work not only provides a promising birefringent material, but also offers a practical covalent‐attachment strategy for the rational design of new high‐performance optical materials.
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