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| Online-Ressource |
Verfasst von: | Blasius, Clemens K. [VerfasserIn] |
| Wadepohl, Hubert [VerfasserIn] |
| Gade, Lutz H. [VerfasserIn] |
Titel: | NNN-Cobalt(II) pincer complexes |
Titelzusatz: | paramagnetic NMR spectroscopy in solution and application as hydrosilylation catalysts |
Verf.angabe: | Clemens K. Blasius, Hubert Wadepohl, and Lutz H. Gade |
E-Jahr: | 2020 |
Jahr: | 20 May 2020 |
Umfang: | 8 S. |
Fussnoten: | Gesehen am 27.07.2020 |
Titel Quelle: | Enthalten in: European journal of inorganic chemistry |
Ort Quelle: | Weinheim : Wiley-VCH, 1998 |
Jahr Quelle: | 2020 |
Band/Heft Quelle: | (2020), 24, Seite 2335-2342 |
ISSN Quelle: | 1099-0682 |
Abstract: | The tridentate, monoanionic bis(oxazolinylmethylidene)-isoindolate pincer ligand was utilized for the synthesis of various cobalt(II)high-spincomplexes. Employing standard complexation procedures, the corresponding acetato and chlorido complexes were isolated in good yields and thoroughly characterized in the solid-state and in solution. In particular, a density functional theory (DFT) supported paramagnetic NMR analysis revealed a strong correlation between observed(13)C NMR shifts and calculated spin-density distributions, allowing for an unambiguous signal assignment in all(1)H and(13)C NMR spectra. An acetato-bridged trinuclear cobalt species as well as the hexacoordinate "homoleptic" complex [((R)boxmi)(2)Co] were further identified as side products generated in the complex synthesis. The chlorido complexes were applied as catalysts for the cobalt-catalyzed hydrosilylation of acetophenone, producing the chiral secondary alcohol with moderate enantioselectivities. |
DOI: | doi:10.1002/ejic.202000378 |
URL: | kostenfrei: Volltext: https://doi.org/10.1002/ejic.202000378 |
| DOI: https://doi.org/10.1002/ejic.202000378 |
Datenträger: | Online-Ressource |
Sprache: | eng |
Sach-SW: | 3D metal complexes |
| alkyl complexes |
| basis-sets |
| bis(oxazoline) ligands |
| Cobalt |
| cobalt complexes |
| enantioselective hydroboration |
| Hydrosilylation |
| markovnikov hydrosilylation |
| metal |
| molecular-orbital methods |
| Paramagnetic NMR |
| Pincer ligands |
| reaction pathways |
| zeta valence quality |
K10plus-PPN: | 1725571552 |
Verknüpfungen: | → Zeitschrift |
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Lokale URL UB: | Zum Volltext |
NNN-Cobalt(II) pincer complexes / Blasius, Clemens K. [VerfasserIn]; 20 May 2020 (Online-Ressource)
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