有机化学 ›› 2025, Vol. 45 ›› Issue (8): 2848-2853.DOI: 10.6023/cjoc202501007 上一篇    下一篇

研究论文

芳基铜(I)与烷基硅胺的反应: 无限链芳基铜(I)、多核硅胺铜(I)及纳米粒子铜(0)的合成和表征

林依鸣a,, 岳佳怡a,, 张春燕a,, 陈艺林b,*(), 朱红平a,*()   

  1. a 厦门大学化学化工学院 固体表面物理化学国家重点实验室 福建厦门 361005
    b 江苏南大光电股份有限公司 江苏苏州 210046
  • 收稿日期:2025-01-12 修回日期:2025-03-18 发布日期:2025-04-24
  • 作者简介:

    †共同第一作者.

  • 基金资助:
    国家自然科学基金(21972112); 福建省产学研(2021H6002)

Reactions of Copper(I) Aryls and Siladiamine: Synthesis and Characterization of (CuMes)n, Multinuclear Copper(I) Siladiamide and Copper(0) Nanoparticles

Yiming Lina, Jiayi Yuea, Chunyan Zhanga, Yilin Chenb,*(), Hongping Zhua,*()   

  1. a State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005
    b Jiangsu Nata Opto-electronic Material Co., Ltd., Soochow, Jiangsu 210046
  • Received:2025-01-12 Revised:2025-03-18 Published:2025-04-24
  • Contact: *E-mail:chenyl@natachem.com;hpzhu@xmu.edu.cn
  • About author:

    †These authors contributed equally to this work.

  • Supported by:
    National Natural Science Foundation of China(21972112); Productive Research Program of Fujian Province(2021H6002)

研究了芳基铜(I)和烷基硅胺的反应, 合成了无限链芳基铜(I)、多核硅胺铜(I)化合物以及纳米粒子铜金属. 2,4,6-三甲基苯基铜(I) [(CuMes)4]在二甲基硅二叔丁胺[Me2Si(NHtBu)2]的存在下于氘苯溶剂中90 ℃下放置12 h, 转化成一维无限链状结构的(CuMes)n (1). 该体系在反应时间延长至22 h时产生面心立方相、平均粒径3.25 nm的铜金属纳米粒子. 2 equiv.五氟苯基铜(I) [(CuC6F5)2•dioxane]与Me2Si(NHtBu)2在苯溶剂中80 ℃下反应8 h, 生成四核硅胺铜(I)化合物Cu2[N(tBu)SiMe2]2[NH(tBu)SiMe2]2(CuC6F5)2 (2). 测定了化合物12的单晶衍射结构, 测试了铜金属纳米粒子的X射线粉末衍射(XRD)和高能透射电子显微镜(TEM)谱; 研究了(CuMes)4和Me2Si(NHtBu)2在氘苯中的反应动力学, 证明了铜金属纳米粒子的关键成因, 即(CuMes)4 or n或类硅胺铜(I)化合物发生了依赖于温度和反应时间的自氧化还原反应. 首次实验证实了一维无限链状芳基铜(I)结构的存在.

关键词: 芳基铜(I), 烷基硅胺, 一维无限链状结构, 多核硅胺铜(I), 铜金属纳米粒子, 反应动力学

Abstract Reactions of copper(I) aryls and siladiamine were studied, and infinite one-dimensional linear arylcopper(I), multinuclear copper(I) siladiamide and copper(0) nanoparticles (NPs) were resulted. The reaction of (CuMes)4 in the presence of Me2Si(NHtBu)2 in C6D6 at 90 ℃ yielded (CuMes)n (1) after 12 h. When this reaction was treated by prolonging the time to 22 h, Cu(0) NPs were transformed and tested to be of the face-centered cubic phase with averaged diameter of 3.25 nm. The reaction of Me2Si(NHtBu)2 and two equivalent (CuC6F5)2•dioxane in benzene at 80 ℃ gave tetranuclear copper(I) siladiamide Cu2[N(tBu)SiMe2]2[NH(tBu)SiMe2]2(CuC6F5)2 (2) within 8 h. Compounds 1 and 2 have been determined by X-ray crystallography. The Cu(0) NPs were characterized by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). The kinetic reaction of (MesCu)4 and Me2Si(NHtBu)2 in C6D6 at 90 ℃ for 12 d was studied by 1H NMR spectroscopy, which proved formation of the Cu(0) NPs by temperature and time-dependent self-redox of the copper(I) siladiamide formed along with (CuMes)4 or n. The structure of an infinite one-dimensional linear arylcopper(I) by 1 was testified, for the first time, to exist in experiment.

Key words: arylcopper(I), siladiamine, infinite one-dimensional linear structure, multinuclear copper(I) siladiamide, copper(0) nanoparticles, kinetic reaction