基和基胺基的寡合棒
Bethany L Kormos1, Jolin A Jegier, Paul C Ewbank
1Department of Chemistry and Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455, USA.
Journal of the American Chemical Society
|February 3, 2005
概括
研究人员合成了新的化 (GaN) 和碳化 (GeC) 棒. 这些材料具有独特的结构,电子和发光特性,在材料科学中具有潜在的应用.
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
- 计算化学计算化学
背景情况:
- 合成了化 ([RGaNH](n)) 和碳化 (GeC) 的寡合体.
- 之前关于化物模拟物[HGaNH]的研究报告.
研究的目的:
- 合成和表征新的寡合物GaN和GeC棒.
- 研究这些材料的结构,电子和光发光特性.
- 探索电子阴性对杆结构和电子行为的影响.
主要方法:
- 通过与氨反应合成[RGaNH](n) 寡合物.
- 使用单晶X射线衍射和红外光谱学进行表征.
- 密度函数理论 (DFT) 和结构性和电子性质的时间依赖的DFT计算.
主要成果:
- 形成了具有棒状结构的不溶性[RGaNH]n) 寡合体.
- GaN棒的双极时刻增加,激发能量随着长度的增加而减少.
- GeC棒呈现相反的极化和每增加环的恒定能量成本.
- 所有合成的粉末在室温下都显示出可见的发光.
结论:
- 基GaN和化GaN棒之间存在结构上的相似性.
- 电子阴性差异显著影响GaN与GeC棒的几何和电子结构.
- 观察到的发光归因于不同的杆长.
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