通过单步位选择性化三碳联体的异金属碳化合物复合物
Ramananda Maity1, Hannah Koppetz, Alexander Hepp
1Institut für Anorganische und Analytische Chemie and NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster , Corrensstrasse 30, D-48149 Münster, Germany.
Journal of the American Chemical Society
|March 26, 2013
概括
研究人员使用三 (imidazolium) 盐和酸与或合成了新型异金属复合物. 这种单反应产生了独特的结构,N-异环碳联体与金属中心协调.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 催化剂是一种催化剂.
背景情况:
- 三 () 盐是N-异环碳素 (NHC) 配体的多功能前体.
- 异金属复合物为催化应用提供独特的电子和硬质性质.
- 正金属化是构建复杂有机金属结构的关键策略.
研究的目的:
- 合成新型异金属复合物,其中包括,和.
- 探索一个三 (imidazolium) 盐在一反应中的协调行为.
- 调查由此产生的复合体的结构特征,并进行双重NHC协调.
主要方法:
- 一个不对称的三 (imidazolium) 盐与Pd (OAc) 2和[M (Cp*) ] (Cl) 2 (M = Rh (III), Ir (III)) 的一个反应.
- 脱 imidazolium C2 位置以产生 N- 异环碳.
- 合成的异金属复合物的特征 [3] (M = Rh) 和 [4] (M = Ir).
主要成果:
- 成功合成异金属复合物 [3] (Rh) 和 [4] (Ir).
- (II) 离子被两个正体N-异环碳素 (NHC) 供体化.
- 第三个NHC供体坐标与M(III) 中心相连,该中心经历中央环的正元化.
结论:
- 一反应为复杂的异金属结构提供了一条有效的途径.
- 合成的复合体表现出独特的协调模式,涉及Pd (II) 和M (III) 中心.
- 这项研究扩大了基于NHC的有机金属化学和异金属金属复合体合成的范围.
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