Copper(I) complexes of chelating imidazolo- and imidazolio-diphosphines
| Autor: | Ibrahim Abdellah, Cleve Dionel Mboyi, Yves Canac, Remi Chauvin, Carine Duhayon |
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| Přispěvatelé: | Laboratoire de chimie de coordination (LCC), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
Stereochemistry
Organic Chemistry Cationic polymerization chemistry.chemical_element Biochemistry Copper Medicinal chemistry 3. Good health Adduct Inorganic Chemistry chemistry.chemical_compound chemistry Nucleophile Diphosphines Materials Chemistry [CHIM.COOR]Chemical Sciences/Coordination chemistry Chelation Physical and Theoretical Chemistry Ternary operation Phosphine |
| Zdroj: | Journal of Organometallic Chemistry Journal of Organometallic Chemistry, Elsevier, 2015, 776, pp.149-152. ⟨10.1016/j.jorganchem.2014.10.046⟩ |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2014.10.046 |
| Popis: | International audience; Resumption of the preparation of the known imidazolo-diphosphine BIPHIMIP allowed the resolution of its X-ray-crystal structure along with that of an imidazolo-triphosphine side-product. BIPHIMIP is then shown to undergo selective N-methylation to the corresponding imidazolio-diphosphine (BIPHIMIOP), also characterized by crystallography. In spite of weakly donating characters, both the neutral and cationic diphosphines are found to react with CuI to afford stable Cu(I) complexes occurring as centro-symmetric dinuclear species in the crystal state. Mild nucleophilic treatment of the electron-poor BIPHIMIOP complex with [Et4N][Cl] is shown to trigger dephosphinylation to the corresponding electron-rich NHC-phosphine complex, thus demonstrating the dative nature of the [N2C–PPh2]+ bond (in a NHC–>phosphenium adduct) and the C:–>P:–>Cu ternary character of the BIPHIMIOP-Cu coordination motif. |
| Databáze: | OpenAIRE |
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