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

ABSTRACT: A new family of sterically hindered alkyl(tri-tert-butyl) phosphonium salts (n-CnH2n+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.

SUBMITTER: Arkhipova DM 

PROVIDER: S-EPMC7763823 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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

Arkhipova Daria M DM   Ermolaev Vadim V VV   Miluykov Vasily A VA   Gubaidullin Aidar T AT   Islamov Daut R DR   Kataeva Olga N ON   Ananikov Valentine P VP  

Nanomaterials (Basel, Switzerland) 20201209 12

A new family of sterically hindered alkyl(tri-<i>tert</i>-butyl) phosphonium salts (<i>n</i>-C<sub>n</sub>H<sub>2n+1</sub> with <i>n</i> = 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 nanoparti  ...[more]

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