一个稳定且高电子丰富的 (η6-Diborabenzene) 尼克尔的反应性(0) 合成子
Maximilian Dietz1,2, Merle Arrowsmith1,2, Arumugam Jayaraman1,2,3
1Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, Würzburg 97074, Germany.
Inorganic chemistry
|January 18, 2025
概括
这项研究探讨了 ((0)) 迪博拉复合物的反应性,合成了新的二 ((0) 和-复合物. 新的半三明治和不对称的三明治复合体也形成了,扩大了有机金属化学.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 化学 化学
背景情况:
- 双甲 (DBB) 复合物是有机金属化学中有价值的合成物.
- 了解(0) 复合物与DBB配体的反应性对于开发新的催化系统至关重要.
- 对双金属复合物的探索为合作效应和新型结合模式提供了洞察力.
研究的目的:
- 为了研究的反应性{0} pogo-stick复合物[{η6-DBB) Ni{CO) ] (II) 与各种试剂.
- 合成和表征新的二,和双金属复合物.
- 通过使用DFT计算,探索新形成的有机金属化合物的电子性质和粘合.
主要方法:
- [η6-DBB) Ni(CO) ] (II) 与[Ni(CO) 4],一种氨基乙烯复合物,甲基三酸盐和五乙烯的反应.
- 使用光谱和分析技术对反应产品进行隔离和表征.
- 密度函数理论 (DFT) 计算以阐明复杂的电子结构和结合 6.
主要成果:
- 形成不稳定的二尼克尔 () 复合物[η6-DBB) () () -CO) () CO) ] (1) 和双金属的Ni02半三明治复合物[η6-DBB) () 2 () () () CO) ] (2).
- 合成Ni0-Cr0复合物[η6-DBB]Ni[μ-CO]Cr[CO]5] (3) 和二次性伊米诺[TMS]BN[TMS]2 (4).
- 产生离子NiII半三明治复合物[η6-DBB) NiMe(CO) ]OTf (5) 和不对称的三明治复合物[η6-DBB) Ni2 ((μ-CO) 2 ((η5-PPB) ] (6).
结论:
- (0) 双复合体对不同类别的试剂表现出不同的反应性.
- 已经成功合成了新型的二,和独特的三明治复合物.
- DFT计算表明,复合物6的配方是dinickel ((0)),其中包括中性芳香DBB和抗芳香PPB连接体.
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