Magnetic Core–Shell Nanoparticles as Carriers for Olefin Dimerization Catalysts
作者:Thomas M. Ruhland、Julian R. V. Lang、Helmut G. Alt、Axel H. E. Müller
DOI:10.1002/ejic.201201547
日期:2013.4.12
We report the covalent support of functionalized nickel complexes on magneticcore–shell hybrid particles γ-Fe2O3/SiO2. Two completely different ways of connecting the particle with these nickel complexes were carried out. The first approach used the hydrosilylation method between the alkene-substituted nickel complex and a silane. In a second approach, the particles were connected with the complexes
我们报告了功能化镍配合物在磁性核壳杂化颗粒 γ-Fe2O3/SiO2 上的共价支持。进行了将颗粒与这些镍配合物连接起来的两种完全不同的方式。第一种方法使用烯烃取代的镍络合物和硅烷之间的氢化硅烷化方法。在第二种方法中,粒子通过点击化学(铜催化的 Huisgen 1,3-偶极环加成)与复合物连接。为此,镍配合物被炔烃部分取代。透射和扫描电子显微镜、能量色散 X 射线衍射和 FTIR 光谱是用来表征镍配合物成功异质化的方法。