半导体-硫-有机网络固体
Dayna L Turner1, Thomas P Vaid, Peter W Stephens
1Department of Chemistry and Center for Materials Innovation, Washington University, St. Louis, Missouri 63130, USA.
Journal of the American Chemical Society
|December 11, 2007
概括
从乙醇和乙二胺合成的新协调聚合物表现出多样化的结构和特性. 由此产生的材料范围从分子单位到无机固体类型的结合,其中一种化合物被确定为半导体.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
背景情况:
- 化合物及其协调聚合物由于其多样化的结构动机和潜在应用而引起人们的兴趣.
- 二醇作为多功能联结体,用于构建复杂的金属有机框架.
研究的目的:
- 通过使用不同的乙醇配体,合成和表征新的协调聚合物.
- 研究这些新材料的结构多样性和粘合特性.
- 探索结构和特性之间的关系,特别是电导率.
主要方法:
- 在乙烯基胺中, (II) 乙酸与1,2,4,5-二甲,1,4-二甲和六甲的反应.
- 使用同步龙X射线粉碎衍射和单晶X射线衍射来确定结构.
- 结合模式的分析和与光学和电气性质的相关性.
主要成果:
- 三种不同的协调聚合物的合成:Pb2 (S2C6H2S2) (黄色),Pb3 (SC6H4S) (红) 和Pb3C6S6 (棕).
- 结构阐明揭示了[Pb2(S2C6H2S2)(en) ]n中的"分子"单元和[Pb3C6S6]n.n中的无机固体样结合.
- [Pb3C6S6]n被确定为半导体,表明不同的电子特性.
结论:
- 乙醇配体的选择显著影响了协调聚合物的结构和结合.
- 合成的材料表现出一系列的结合类型,从离散的分子组件到扩展的无机网络.
- [Pb3C6S6]n的半导体行为突出了这些硫系统中调整电子属性的潜力.
相关概念视频
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