硬币金属-乙烯复合体的硬质要求高的1,10-phenanthroline配体
Deepika V Karade1, Vo Quang Huy Phan1, H V Rasika Dias1
1Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA. dias@uta.edu.
Dalton transactions (Cambridge, England : 2003)
|April 23, 2024
概括
大量的类联体促进了铜,银和黄金乙烯复合物的产生. 铜复合物显示出通过碳插入的C ((sp3) -H功能化的催化剂的希望.
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:
- 类联体在稳定金属复合物的过程中至关重要.
- 晚期过渡金属的乙烯复合物在催化和机械学研究中很重要.
研究的目的:
- 为了合成和表征铜 (I),银 (I) 和黄金 (I) 的乙烯复合物,使用硬质要求高的类合物.
- 研究11组不同金属对协调乙烯的电子和结构效应.
- 探索铜(I) 乙烯复合体在C(sp3) -H功能化中的催化潜力.
主要方法:
- 合成新的基于类素的配体,使用重的基替代剂.
- 用于金属乙烯复合物的结构确定的X射线晶体学.
- 核磁共振 (NMR) 谱学用于研究电子对乙烯的影响.
- 预先对C ((sp3) -H功能化反应进行催化试验.
主要成果:
- 成功合成并对M = Cu,Ag,Au.的[{2,9-bis(2,4,6-三 Propylphenyl) -1,10-phenanthroline}M(C2H4)][SbF6]进行结构性表征.
- 黄金 (I) 显著影响乙烯,导致上方的NMR转移和C-C键的延长.
- 银(I) 在研究的复合物中表现出最弱的金属乙烯相互作用.
- 铜复合体证明了作为催化剂的潜力,用于将三甲基碳插入C(sp3) -H键中.
结论:
- 固态阻碍的类联体对稳定11组金属乙烯复合物是有效的.
- 金属中心 (Cu,Ag,Au) 的电子特性调节了金属-乙烯键的性质.
- 复合体,特别是具有弱协调带的复合体,对催化Csp3-H功能化有很大的希望.
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