史无前例的岩类框架拓结构是由子构建的,在氧尼特酸中的3环
Stefan J Sedlmaier1, Markus Döblinger, Oliver Oeckler
1Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13 (D), D-81377 Munich, Germany.
Journal of the American Chemical Society
|June 28, 2011
概括
研究人员合成了一种新型的氧化二酸盐材料,Ba19) P36O6+x) N66-x) Cl8+x,具有独特的3D网络结构. 这一发现扩大了无机材料的领域,并为新的应用提供了潜力.
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:
- 氧化酸是一种新兴的无机材料类,具有多种结构可能性.
- 了解新型化合物的合成和结构对于推进材料科学至关重要.
研究的目的:
- 为了合成和表征一种新的氧尼特酸化合物.
- 阐明新材料的晶体结构和网络拓.
- 用先进的光谱技术来确认结构模型.
主要方法:
- 高分辨率的同步光子粉末衍射射.
- 充电翻转算法是一种算法.
- 电子衍射 (ED) 和扫描传输电子显微镜 (STEM) 的应用.
- 瑞特维尔德的提炼方式
- (31) P 固态NMR光谱学 (DQ/SQ,TQ/SQ,C-REDOR) 进行研究.
主要成果:
- 一种新型的氧尼二酸盐,Ba19) P36O6+x) N66-x) Cl8+x,已成功合成.
- 在立方空间组Fm ̅3c中确定了晶体结构,其中包含一个共享顶点的3D网络P(O,N)(4) 四面体,形成3(8)4(6) 8(12) 子.
- 该结构包含一个3D8环通道系统,其中Ba2+) 和Cl-) 离子作为外框架物种.
- 核磁共振光谱证实了结构模型,并表明含量非常低.
结论:
- 这种新型氧尼基酸盐的成功合成和结构确定扩大了已知的P-O-N基材料家族.
- 独特的复合建筑单元和3D网络结构为新的无机框架的设计原则提供了洞察力.
- 这些发现为进一步研究这种材料类别的性能和潜在应用提供了基础.
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