Difunctional phosphorus dendrimer complexes as catalysts in supercritical CO2
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2026
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| author | Petriccone, Massimo Caminade, Anne-marie Sebastian, Rosa Maria |
| author_facet | Petriccone, Massimo Caminade, Anne-marie Sebastian, Rosa Maria |
| contents | <p><span>Dendrimers offer a rare opportunity to tune catalysis through molecular architecture. Poly(phosphorhydrazone) (PPH) dendrimers, functionalized with perfluoroalkyl chains and palladium imino‑phosphine complexes, were designed to test this principle under the demanding conditions of supercritical CO</span><span>₂</span><span> (<sup>sc</sup>CO</span><span>₂</span><span>). Three generations</span><span> incorporating 6 to 24 Pd centers,</span><span> </span><span>alongside their monomeric precursor</span><span>, were evaluated as catalysts for Stille cross‑coupling. </span><span>Despite their lack of solubility, the dendrimers remained well dispersed in the medium</span><span>. Remarkably, catalytic performance increased systematically with dendrimer generation, revealing for the first time a <span>positive dendritic effect</span> in <sup>sc</sup>CO</span><span>₂</span><span>.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19642746 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Difunctional phosphorus dendrimer complexes as catalysts in supercritical CO2 Petriccone, Massimo Caminade, Anne-marie Sebastian, Rosa Maria Dendrimers supercritical CO2 Catalysis Stille cross-coupling Dendritic effect <p><span>Dendrimers offer a rare opportunity to tune catalysis through molecular architecture. Poly(phosphorhydrazone) (PPH) dendrimers, functionalized with perfluoroalkyl chains and palladium imino‑phosphine complexes, were designed to test this principle under the demanding conditions of supercritical CO</span><span>₂</span><span> (<sup>sc</sup>CO</span><span>₂</span><span>). Three generations</span><span> incorporating 6 to 24 Pd centers,</span><span> </span><span>alongside their monomeric precursor</span><span>, were evaluated as catalysts for Stille cross‑coupling. </span><span>Despite their lack of solubility, the dendrimers remained well dispersed in the medium</span><span>. Remarkably, catalytic performance increased systematically with dendrimer generation, revealing for the first time a <span>positive dendritic effect</span> in <sup>sc</sup>CO</span><span>₂</span><span>.</span></p> |
| title | Difunctional phosphorus dendrimer complexes as catalysts in supercritical CO2 |
| topic | Dendrimers supercritical CO2 Catalysis Stille cross-coupling Dendritic effect |
| url | https://doi.org/10.5281/zenodo.19642746 |