合成和集群结构扭曲的双碳二硫醇,二和二硫化物
Jared R Riffle1, Tyler M Hemingway1, Mark D Smith1
1Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter St, Columbia, South Carolina 29208, USA. peryshkov@sc.edu.
Dalton transactions (Cambridge, England : 2003)
|February 14, 2024
概括
研究人员合成了碳酸集群的新型硫衍生物,包括醇和二硫化物. 这些化合物表现出独特的结构性质,例如延长的碳-碳键,这是由于碳化合物结构内的电子移位.
科学领域:
- 有机金属化学 有机金属化学
- 化学 化学
- 超分子化学 超分子化学
背景情况:
- 碳酸是一种具有独特电子和结构性质的有机化合物.
- 碳烯集群的功能化允许调整它们的反应性和潜在应用.
- 含硫的配体可以显著影响金属集群的电子结构.
研究的目的:
- 合成和描述C,C-双碳化合物的第一个含硫衍生物.
- 为了研究醇,乙烯和二硫化物纳入双碳基框架的结构影响.
- 探索硫替代剂和碳烯集群之间的电子相互作用.
主要方法:
- 合成含硫的双碳衍生物 (硫醇,硫乙,二硫化物).
- 用X射线结晶学进行详细的结构特征.
- 谱学方法用于确认结构和电子性质.
主要成果:
- 成功合成了双碳二醇,二和二硫化物.
- 双碳二醇呈现出异常长的集群内C-C键 (1.858(3) Å).
- 双重脱质的二硫酸盐离子显示出显著延长的C-C键 (2.062(10) Å) 和短的C-S键 (1.660(7) Å),表明了大量的电子移位.
结论:
- 加入硫的功能组对C,C-双碳烯集群的结构和电子特性产生了深远的影响.
- 观察到的键延长归因于硫单双和碳团的空置分子轨道之间的强烈相互作用.
- 这些发现为设计具有可调节电子特征的新型碳基材料开辟了道路.
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