Sterically Hindered Phosphonium Salts: Structure, Properties and Palladium Nanoparticle Stabilization

A new family of sterically hindered alkyl(tri-tert-butyl) phosphonium salts (n-C(n)H(2n+1) with n = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20) was synthesized and evaluated as stabilizers for the formation of palladium nanoparticles (PdNPs), and the prepared PdNPs, stabilized by a series of phosphonium sal...

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Detalles Bibliográficos
Autores principales: Arkhipova, Daria M., Ermolaev, Vadim V., Miluykov, Vasily A., Gubaidullin, Aidar T., Islamov, Daut R., Kataeva, Olga N., Ananikov, Valentine P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7763823/
https://www.ncbi.nlm.nih.gov/pubmed/33316907
http://dx.doi.org/10.3390/nano10122457
Descripción
Sumario:A new family of sterically hindered alkyl(tri-tert-butyl) phosphonium salts (n-C(n)H(2n+1) with n = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20) was synthesized and evaluated as stabilizers for the formation of palladium nanoparticles (PdNPs), and the prepared PdNPs, stabilized by a series of phosphonium salts, were applied as catalysts of the Suzuki cross-coupling reaction. All investigated phosphonium salts were found to be excellent stabilizers of metal nanoparticles of small catalytically active size with a narrow size distribution. In addition, palladium nanoparticles exhibited exceptional stability: the presence of phosphonium salts prevented agglomeration and precipitation during the catalytic reaction.

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