由阳离子 (I) β-二甲基胺酸生成的异金属Re-Zn-Zn-Re复合物
Trevor D Lohrey1,2, Laurent Maron3, Robert G Bergman1
1Department of Chemistry , University of California, Berkeley , Berkeley , California 94720 , United States.
Journal of the American Chemical Society
|December 21, 2018
概括
这项研究引入了一种新的离子 () 化合物,Na[Re(η5-Cp) ((BDI) ],证明其作为一种强大的减光剂和金属剂的功效. 该研究探讨了其转化为 (II) 和 (III) 复合体,以及独特的四金属-核心.
科学领域:
- 有机金属化学
- 协调化学
- 无机合成
背景情况:
- 复合物在催化和材料科学中具有价值.
- 在有机金属化合物中探索新的氧化状态和结合是至关重要的.
- 强化学减速剂和多功能金属体的开发仍然是一个活跃的研究领域.
研究的目的:
- 合成和表征一种新的离子化合物.
- 研究复合物的反应性作为降解剂和金属聚合物.
- 探索多核复合物的形成和电子结构.
主要方法:
- 阳离子 ((I) 复合物Na[Re ((η5-Cp) ((BDI) 的合成.
- 化学氧化和质子化反应以达到不同的氧化状态.
- 与ZnCl2反应形成四金属-化合物.
- 计算研究 (DFT) 来分析金属对金属的结合.
主要成果:
- 成功合成了Na[Re{η5-Cp}{BDI} (1).
- 形成 (II) (2) 和 (III) 化物 (3) 复合物.
- 在化合物4中发现了四金属Re{I}-Zn{I}-Zn{I}-Re{I}核.
- 在4中金属-金属结合的特征,包括dative Re-Zn和共价Zn相互作用.
- 氧化4产生 (II) 复合物2和 (II) 复合物5.
结论:
- 阳离子 ((I) 复合物是一种通用的前体,可进入多种氧化状态和独特的多核结构.
- 在四金属核中, 和中心之间呈现出有趣的电子相互作用.
- 这项工作扩大了有机化学和金属对金属的结合研究的范围.
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