在斯坦尼-尼系统中,H-H/Sn-CAr键的合作转化
Jonas M Gilch1, Philip M Keil1, Mustapha Iddrisu2
1Fakultät für Chemie, School of Natural Sciences, TU München Lichtenberg Strasse 4 85749 Garching Germany terrance.hadlington@tum.de.
Chemical science
|March 9, 2026
概括
合成了新的-烯复合物,发现它们可以激活H2,形成一个独特的桥接化物连接体. 进一步的反应导致了一个新型复合体,其中有两个Sn(0) 中心结合Ni(II).
科学领域:
- 有机金属化学 有机金属化学
- 主要组 化学 化学
- 催化剂是一种催化剂.
背景情况:
- 氨酸附加的斯坦尼烯是多功能联结体.
- (0) 复合体是催化过程中的关键合成子.
- 激活是一种基本的化学转化.
研究的目的:
- 合成新型的化-乙烯Ni(0) 复合物.
- 为了研究这些复合物的激活能力.
- 阐明H2激活和随后反应的机制.
主要方法:
- 素附加斯坦尼烯与Ni(0) 合成子的反应.
- 16电子Ni(0) 复合物的合成.
- 在温和条件下的化反应.
- 光谱学表征 (NMR,质谱学).
- 密度函数理论 (DFT) 的计算.
主要成果:
- 容易形成结合剂-乙烯Ni(0) 复合物 (2-4).
- 使用IPr·Ni·(η6-toluene) 的16电子Ni(0) 复合物的高产合成.
- 在温和条件下 (1bar,RT) 激活H2,形成单基斯坦尼烯复合物 (5).
- 化合物5具有一个桥梁[Sn-(μ-H) -Ni]化物连接体.
- 机制包括Ni-H2结合,Sn-Ni合作性激活和Ar-H消除.
- 复合体5经历进一步的Ph-H消除,形成一个独特的-烯复合体 (7),其中有两个Sn(0) 中心结合Ni(II).
结论:
- 化-斯坦尼烯Ni(0) 复合物对H2激活有效.
- 发现了一种新的桥接化物连接体系统.
- 激活H2的机制涉及到合作的Sn-Ni相互作用.
- 合成了一种独特的多聚烯复合物,展示了进一步的反应性.
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