An experimental and computational comparison of phosphorus- and selenium-based ligands for catalysis
| Autor: | Jamie S. Ritch, Bronte J. Charette |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010405 organic chemistry
Ligand Stereochemistry Organic Chemistry chemistry.chemical_element General Chemistry Nuclear magnetic resonance spectroscopy 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Crystallography chemistry Moiety Reactivity (chemistry) Chelation Density functional theory Palladium |
| Zdroj: | Canadian Journal of Chemistry. 94:386-391 |
| ISSN: | 1480-3291 0008-4042 |
| DOI: | 10.1139/cjc-2015-0417 |
| Popis: | To compare and contrast the bonding and reactivity of organoselenium ligands with organophosphines in coordination complexes, a new palladium(II) complex of the Se,N-chelating ligand o-(NH2)(X)C6H4 (X = SePh, 2) was prepared. Its characterization by NMR spectroscopy, single-crystal X-ray diffraction, and density functional theory calculations is contrasted with the PdII complex of the related P,N- chelating ligand (X = PPh2, 1). These techniques indicate that the phenylseleno moiety is a weaker σ donor to the PdCl2 fragment than the diphenylphosphino group. Both complexes were suitable to catalyze the Suzuki–Miyaura coupling of p-tolylboronic acid and 4-bromobenzaldehyde. |
| Databáze: | OpenAIRE |
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