相关实验视频
Updated: Jun 12, 2026

09:23
Harmonic Nanoparticles for Regenerative Research
Published on: May 1, 2014
性基酸NaBeB ((3) O ((6) 和ABe ((2) B ((3) O ((7) (A = K,Rb) 作为紫外线非线性光学晶体
Shichao Wang1, Ning Ye, Wei Li
1Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China.
Journal of the American Chemical Society
|June 4, 2010
概括
合成了新的性酸,包括具有独特的阴离子组和2D层的新型结构. 几种化合物表现出有希望的非线性光学特性,具有显著的第二生成 (SHG) 系数.
科学领域:
- 无机化学 无机化学 有机化学
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
背景情况:
- 酸是无机化合物的一类,在材料科学中具有潜在的应用.
- 新型酸结构的合成和表征,因其独特的特性而引起人们的兴趣.
研究的目的:
- 为了合成和表征新的性酸.
- 研究这些新材料的结构,光学和非线性光学特性.
主要方法:
- 使用基于A(2) O-B(2) O(3) (A = Na,K,Rb) 溶剂的融流体进行自发结晶.
- 用X射线衍射进行结构分析.
- 紫外线对光学属性的扩散反射谱学.
- 库茨和佩里技术用于第二和生成 (SHG) 测量.
主要成果:
- 合成NaBeB ((3) O ((6),alpha-,β-, gamma-KBe ((2) B ((3) O ((7) 和RbBe ((2) B ((3) O ((7)) 的方法.
- 在NaBeB3O6和alpha-KBe2B3O7中发现了一个新的离子组[Be2B3O11]-9- .
- 在β,gamma-KBe(2)B(3)O(7) 和RbBe(2)B(3)O(7) 中识别二维酸酸层[Be(2)BO(5) ](无限度).
- 对于NaBeB(3) O(6),β,gamma-KBe(2) B(3) O(7) 和RbBe(2) B(3) O(7) 的非中心对称性得到证实.
- 非中心对称材料的短波长吸收边缘低于200nm.
- 在NaBeB{3) O{6),β,gamma-KBe{2) B{3) O{7) 和RbBe{2) B{3) O{7) 中观察到相匹配的SHG,与KDP相比具有显著的SHG系数.
结论:
- 具有独特结构图案的新型性烯酸酸盐已成功合成.
- 研究的材料表现出有前途的非线性光学特性,特别是相匹配的SHG.
- 这些发现有助于开发新的功能性无机材料.
相关概念视频
Hydroboration-Oxidation of Alkenes
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
Hybridization of Atomic Orbitals I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...

