带电分子合金:二元离子Pd(7) As(16) ((4-) 和Pd(2) As(14) ((4-) 的合成和表征
Melanie J Moses1, James Fettinger, Bryan Eichhorn
1Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
Journal of the American Chemical Society
|May 23, 2002
概括
合成了新的-集群Pd(2) As(14) ((4-) 和Pd(7) As(16) ((4-). 这些无有机,同质型金属组15离子代表了一种新的"分子合金"类.
科学领域:
- 无机化学 无机化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 与的化学作用还没有得到充分的研究.
- 同质过渡金属离子的合成具有挑战性.
研究的目的:
- 为了合成和描述新型的-集群.
- 为了研究这些新的离子化合物的结构多样性.
主要方法:
- 在en/tol中,Pd的反应 (PCy) 与As的反应 (As) 在en/tol中.
- 使用EDX,ESI-MS和单晶X射线衍射进行表征.
主要成果:
- 形成了两个新的阴离子集群:Pd(2)As(14)(4-) 和Pd(7)As(16)(4-).
- 详细的结构分析揭示了独特的联系和协调环境.
- 阳离子2的特征是Pd(III) 中心通过Pd-Pd键连接在一起.
- 阳离子4呈现出扭曲的Pd(7) 核心,该核心由各种阳离子稳定.
结论:
- 这些化合物是无有机,同质过渡金属离子的罕见例子.
- 合成的集群代表了一个新兴的充电"分子合金"类.
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