Recent advances on the synthesis of Sb(Ⅲ)-based inorganic ultraviolet nonlinear optical materials

Nonlinear optical(NLO)crystals are key components of solid-state lasers and widely used in civilian and military applications.A wide transmission range,a large second harmonic generation(SHG)effect and a suitable bire-fringence are important factors in determining a nonlinear material with excellent performance.Research on ultraviolet(UV)nonlinear optical materials has concentrated on borates,carbonates,and nitrates containing derivative groups,as well as phosphates and sulfates containing tetrahedral groups,as a result of the anionic group theory's influence.In addition,cations have a significant impact on NLO materials according to recent researches.The introduction of lone electron pair cations Sb(Ⅲ)has been proven to be an effective strategy by our group,which could modulate the crystal structures of NLO materials to regulate their linear and nonlinear optical properties.This paper presents a short review of the reported Sb(Ⅲ)-based UV-NLO materials.Also,it gives an overview of the role played by different synthetic methods in the synthesis process of Sb(Ⅲ)-based UV-NLO materials and how to solve the difficult problems including oxidation and hydrolysis.This work will offer some synthetic concepts for investigating the subsequent class of high-performance UV nonlinear materials.

3d过渡金属单离子磁体

单分子磁体在量子计算、高密度存储材料以及分子自旋电子学等领域具有广阔的应用前景。3d过渡金属单离子磁体具有结构简单、易于研究磁构关系以及可控配体场获得高能垒等特点,因而成为近年来单分子磁体领域的研究热点。本文结合现有研究成果,从配位构型出发,旨在对近年来基于3d过渡金属离子的单离子磁体进行综述,重点阐述配体场、磁各向异性和单离子磁体性质三者之间的关系,为设计合成单分子磁体提供新的思路。