Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applications in Heck reaction

Hamid Hafizi and Md. Lutfor Rahman and Mohd Sani Sarjadi and Mohammed Salim Akhter and Maurice N. Collins and Emmet J. O’Reilly and Gavin M. Walker and Shaheen M. Sarkar (2022) Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applications in Heck reaction. Arabian Journal of Chemistry, 15. pp. 1-11. ISSN 1878-5352

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Abstract

Magnetically recyclable Schiff-based palladium nanocatalyst [Fe₃O₄@SiNSB-Pd] and its catalytic applicatiA magnetically separable palladium nanocatalyst has been synthesized through the immobilization of palladium onto 3-aminopropylphenanthroline Schiff based functionalized silica coated superparamagnetic Fe₃O₄ nanoparticles. The nanocatalyst (Fe₃O₄@SiNSB-Pd) was fully characterized using several spectroscopic techniques, such as FT-IR, HR-SEM, TEM, XRD, ICP, and XPS. The microscopic image of Fe₃O₄ showed spherical shape morphology and had an average size of 150 nm. The Pd-nanoparticles exhibited an average size 3.5 ± 0.6 nm. The successful functionalization of Fe₃O₄@SiNSB-Pd was identified by FT-IR spectroscopy and the appearance of palladium species in Fe₃O₄@SiNSB-Pd was confirmed by XRD analysis. While XPS has been utilized for the determination of the chemical oxidation state of palladium species in Fe₃O₄@SiNSB-Pd. Several activated and deactivated arene halides and olefines were employed for Mizoroki-Heck cross-coupling reactions in the presence of Fe₃O₄@SiNSB-Pd, each of which produced the respective cross-coupling products with excellent yields. The Fe₃O₄@SiNSB-Pd shows good reactivity and reusability for up to seven consecutive cycles.

Item Type:	Article
Keyword:	Magnetic nanoparticles , Silica coated , Phenanthroline , Palladium , Schiff-base , Heck reaction
Subjects:	Q Science > Q Science (General) > Q1-390 Science (General) Q Science > QD Chemistry > QD1-999 Chemistry > QD1-65 General Including alchemy
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	16 Jul 2022 17:57
Last Modified:	16 Jul 2022 17:57
URI:	https://eprints.ums.edu.my/id/eprint/33240

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