Facile syntheses of thiophene-substituted 1,4-diazabutadiene (α-diimine) ligands and their conversion to phosphenium triiodide salts
| Autor: | Alan H. Cowley, Adam B. Powell, Kalyan V. Vasudevan, Jaclyn R. Brown |
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| Rok vydání: | 2009 |
| Předmět: |
Models
Molecular chemistry.chemical_classification Aldimine Molecular Structure Ligand Stereoisomerism Thiophenes Iodides Carbon-13 NMR Crystallography X-Ray Ligands Photochemistry Inorganic Chemistry chemistry.chemical_compound Electron transfer Organophosphorus Compounds chemistry Polymer chemistry Thiophene Moiety Salts Imines Triiodide Diimine |
| Zdroj: | Dalton Transactions. :2521 |
| ISSN: | 1477-9234 1477-9226 |
| DOI: | 10.1039/b820202h |
| Popis: | Four novel N-aryl-2-thienyl substituted 1,4-diazabutadiene (alpha-diimine) ligands 5-8 have been prepared by cyanide ion-catalyzed intermolecular coupling of the appropriate aromatic aldimines. A ligand featuring a phenyl spacer moiety between a thiophene carbon atom and each imino nitrogen atom (12) has been prepared by a similar synthetic route. Ligands 5-8 and 12 were characterized on the basis of 1H and 13C NMR, IR and MS-CI spectroscopy. Upon treatment with PI3 in CH2Cl2 solution, ligands 5-8 undergo redox reactions to furnish the triiodide salts of the corresponding phosphenium cations 13-16 which were characterized by 1H, 13C and 31P NMR, and MS-CI spectroscopy. The phosphenium triiodide salt 15, and ligands 5-7 and 12 were also structurally authenticated. |
| Databáze: | OpenAIRE |
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