[Pd3Sn8Bi6]4-:一个14个顶点的Sn/Bi集群嵌入一个Pd3三角形
Felicitas Lips1, Rodolphe Clérac, Stefanie Dehnen
1Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany.
Journal of the American Chemical Society
|August 13, 2011
概括
研究人员合成了一种新型的内分体集群离子,[Pd(3)Sn(8)Bi(6)](4-),在一个锡-珠子内设有一个三角形. 量子化学研究揭示了芯与周围子之间的弱相互作用.
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
- 固态化学 固态化学
背景情况:
- 内分体集群化合物封装原子或集群在一个子结构.
- 锡比斯穆特提供独特的结构和电子特性.
- 集群对催化和材料应用有兴趣.
研究的目的:
- 为了合成和描述一个新的内分体集群,在一个锡-斯木子内结合一个三角形.
- 调查封装团与周围子之间的结构和电子相互作用.
主要方法:
- 单晶X射线衍射用于结构确定.
- 电子喷雾电离质谱仪 (ESI-MS) 用于质量分析.
- 要素分析和磁性测量用于组合和电子表征.
- 量子化学计算以探测电子结构和结合.
主要成果:
- 实现了[Pd{3}Sn{8}Bi{6}]{4-) 离子的K{2}{2}{2}crypt}{3}+) 盐的合成.
- 晶体结构显示了一个完整的Pd(3) 三角集群,被封装在一个14个顶点的Sn/Bi子中.
- 量子化学研究表明,Pd(3) 三角形和Sn/Bi之间的相互作用很弱.
结论:
- 一种新型的内分体-锡-斯木集群化合物已成功合成和表征.
- 被封装的Pd(3) 集群与周围的Sn/Bi子呈现弱电子合.
- 这项工作扩大了内分层集群化学的范围,并提供了对复杂无机材料结构性质关系的见解.
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