基结合了44个三角形团:合成,氧化,降解,连接物替代,以及量子化学计算
Christian Albrecht1, Sebastian Schwieger, Clemens Bruhn
1Institut für Anorganische Chemie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Strasse 2, D-06120 Halle, Germany.
Journal of the American Chemical Society
|March 24, 2007
概括
这项研究探讨了乙 (II) 复合物的与基二硫化物的反应,形成新的三核集群和二核复合物. 理论研究证实了集群结构和Pt-Pt结合相互作用.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 乙 (II) 复合物作为有机金属合成中的多功能前体.
- 基二硫化物是用于在金属复合体中引入硫联体的常见试剂.
- 了解复合物的反应性对于开发新的催化剂和材料应用至关重要.
研究的目的:
- 为了研究乙 (II) 复合物与各种基二硫化物之间的反应性.
- 合成和描述新的集群和双核复合体.
- 使用理论方法阐明由此产生的复合物的结构和结合性质.
主要方法:
- 乙 (II) 复合物的合成及其与二甲基二硫化物的反应.
- 使用NMR和IR光谱学,微分析和ESI质谱法对产品进行表征.
- 使用原子在分子 (AIM) 理论进行结构和结合分析的理论研究.
- 进行X射线衍射分析,以确定关键化合物的结构.
主要成果:
- 三核团 (4) 和二核复合体 (5,6) 的形成,取决于所使用的二硫化物.
- AIM理论证实了三核星团 (4) 中的 Pt-Pt 键,并将复合物 6 确定为硫覆盖的 (II) 复合物.
- 使用更强的氨酸配体的替代反应产生了新 (9),使用dppm的反应产生了碎片化产物 (12,13).
- 集群的氧化与素,硫或产生的二元 (二) 复合体 (14) 和石化顶三核复合体 (15).
结论:
- 乙 (II) 复合物与二甲基二硫化物表现出不同的反应性,导致各种多核结构.
- 集群的电子和结构性质可以通过连接物替代和氧化来调整.
- 这项工作扩大了对集团化学的理解,并为具有潜在应用的新-硫化合物提供了机会.
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