选择性地将氧和插入到一个电子精确的磁性-碳基聚合物中[Se6Mn6CO18) 4-)
Minghuey Shieh1, Chia-Hua Ho, Wen-Shyan Sheu
1Department of Chemistry, National Taiwan Normal University, Taipei 116, Taiwan, Republic of China. mshieh@ntnu.edu.tw
Journal of the American Chemical Society
|March 9, 2010
概括
研究人员合成了一种新型的电子精确的磁性六甲碳基化集群. 这个星团表现出与氧和的独特反应性,在温和条件下形成新的插入星团.
科学领域:
- 无机化学 无机化学 有机化学
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
背景情况:
- 精确的电子集群在催化和材料科学中至关重要.
- 超磁性主要组过渡金属碳基集群是罕见的和未经探索的.
- 了解集群合成和反应性是开发新功能材料的关键.
研究的目的:
- 报道了一种新型电子精确的偏磁性六碳基化集群的简单合成.
- 调查这个星团对O(2) 和Se(8) 的反应性.
- 通过理论计算阐明由此产生的星团的形成和结合特性.
主要方法:
- 易于合成的六甲碳基化集群 [Se(6) Mn(6) CO) ((18)) ((4-).
- 使用分子氧 (O(2) 和元素 (Se(8) 的反应性研究.
- 使用光谱和分析技术对合成的集群进行表征.
- 理论计算以了解电子结构和粘合.
主要成果:
- 成功综合了新的[Se(6)Mn(6)(CO)(18)](4-) 集群 (1).
- 在温和条件下,证明了集群1与O(2) 和Se(8) 的对比反应性.
- 形成O插入的[Se(6) Mn 6) CO) 18 O) 4 - 2) 和Se插入的[Se(10) Mn 6) CO) 18 4 - 3) 集群.
- 集群1-3是第一个电子精确的偏磁主组过渡金属碳基集群的例子.
结论:
- 实现了一种新型电子精确的偏磁性六碳基化集群的轻松合成.
- 集群表现出独特的反应性,使得O-和Se-插入衍生物的形成成为可能.
- 这些发现扩大了已知的主要组过渡金属碳基团的范围,并提供了对其电子性质的见解.
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