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Pd–Schiff base complex supported on Fe 3 O 4 magnetic nanoparticles: A new and highly efficient reusable catalyst for C–C bond formation in water
Author(s) -
Lei Lei
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5158
Subject(s) - catalysis , chemistry , thermogravimetric analysis , fourier transform infrared spectroscopy , schiff base , inductively coupled plasma , inductively coupled plasma atomic emission spectroscopy , scanning electron microscope , spectroscopy , nanoparticle , infrared spectroscopy , transmission electron microscopy , heterogeneous catalysis , magnetic nanoparticles , analytical chemistry (journal) , nuclear chemistry , chemical engineering , nanotechnology , polymer chemistry , organic chemistry , materials science , quantum mechanics , engineering , composite material , physics , plasma
A protocol is introduced for the preparation of a new cage‐like Pd–Schiff base organometallic complex supported on Fe 3 O 4 nanoparticles (Fe 3 O 4 @Schiff‐base‐Pd). The structure of the nanomagnetic catalyst was comprehensively characterized using Fourier transform infrared (FT‐IR) spectroscopy, X‐ray diffraction (XRD), energy‐dispersive X‐ray spectroscopy, Brunauer–Emmett–Teller measurements, scanning electron microscopy (SEM), transmission electron microscopy, X‐ray mapping, thermogravimetric analysis, vibrating sample magnetometry and inductively coupled plasma atomic emission spectroscopy. In the second stage, the catalytic activity of this catalyst was studied in the Suzuki and Heck cross‐coupling reactions in water as a green solvent. In this sense, simple preparation of the catalyst from commercially available materials, high catalytic activity, simple operation, short reaction times, high yields and use of green solvent are some advantages of this protocol. Finally, the nanocatalyst was easily recovered, using an external magnet, and reused several times without significant loss of its catalytic efficiency. In addition, the stability of the catalyst after recycling was confirmed using SEM, XRD and FT‐IR techniques.