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Magnetic Core–Shell Nanoparticles as Carriers for Olefin Dimerization Catalysts
Author(s) -
Ruhland Thomas M.,
Lang Julian R. V.,
Alt Helmut G.,
Müller Axel H. E.
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201201547
Subject(s) - chemistry , nickel , hydrosilylation , alkyne , cycloaddition , nanoparticle , olefin fiber , silane , alkene , moiety , catalysis , copper , polymer chemistry , nanotechnology , organic chemistry , materials science
We report the covalent support of functionalized nickel complexes on magnetic core–shell hybrid particles γ‐Fe 2 O 3 /SiO 2 . 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 by means of click chemistry (copper‐catalyzed Huisgen 1,3‐dipolar cycloaddition). For this purpose, the nickel complexes were substituted with an alkyne moiety. Transmission and scanning electron microscopies, energy‐dispersive X‐ray diffraction, and FTIR spectroscopy were the methods employed to characterize the successful heterogenization of the nickel complexes.