Issue 7, 2023

Easy preparation of small crystalline Pd2Sn nanoparticles in solution at room temperature

Abstract

We describe here a simple protocol yielding small (<2 nm) crystalline Pd2Sn nanoparticles (NPs) along with Pd homologues for sake of comparison. These NPs were obtained via an organometallic approach using Pd2(dba)3·dba (dba = dibenzylideneacetone) in THF with 2 equivalents of tributyltin hydride under 4 bars of H2 at room temperature. The Pd NP homologues were prepared similarly, using Pd2(dba)3·dba with 2 equivalents of n-octylsilane. These NPs were found to be crystalline and very small with a similar mean size (ca. 1.5 nm). These NPs were finally used as nanocatalysts in solution for a benchmark Suzuki–Miyaura cross-coupling reaction. The Pd2Sn NPs were found to be more active than Pd NPs analogues, exhibiting remarkable performances with Pd loading as low as 13 ppb. This result demonstrates a beneficial effect of tin on palladium in catalysis.

Graphical abstract: Easy preparation of small crystalline Pd2Sn nanoparticles in solution at room temperature

Supplementary files

Article information

Article type
Paper
Submitted
26 Oct 2022
Accepted
19 Jan 2023
First published
19 Jan 2023

Dalton Trans., 2023,52, 2157-2163

Easy preparation of small crystalline Pd2Sn nanoparticles in solution at room temperature

V. Dardun, T. Pinto, L. Benaillon, L. Veyre, J. Galipaud, C. Camp, V. Meille and C. Thieuleux, Dalton Trans., 2023, 52, 2157 DOI: 10.1039/D2DT03476J

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