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| Verfasst von: | Blasius, Clemens K. [VerfasserIn]  |
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| | Wadepohl, Hubert [VerfasserIn] |
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| | Gade, Lutz H. [VerfasserIn] |
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| Titel: | NNN-Cobalt(II) pincer complexes |
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| Titelzusatz: | paramagnetic NMR spectroscopy in solution and application as hydrosilylation catalysts |
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| Verf.angabe: | Clemens K. Blasius, Hubert Wadepohl, and Lutz H. Gade |
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| E-Jahr: | 2020 |
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| Jahr: | 20 May 2020 |
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| Umfang: | 8 S. |
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| Fussnoten: | Gesehen am 27.07.2020 |
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| Titel Quelle: | Enthalten in: European journal of inorganic chemistry |
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| Ort Quelle: | Weinheim : Wiley-VCH, 1998 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | (2020), 24, Seite 2335-2342 |
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| ISSN Quelle: | 1099-0682 |
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| 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. |
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| DOI: | doi:10.1002/ejic.202000378 |
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| URL: | kostenfrei: Volltext: https://doi.org/10.1002/ejic.202000378 |
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| | DOI: https://doi.org/10.1002/ejic.202000378 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | 3D metal complexes |
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| | alkyl complexes |
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| | basis-sets |
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| | bis(oxazoline) ligands |
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| | Cobalt |
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| | cobalt complexes |
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| | enantioselective hydroboration |
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| | Hydrosilylation |
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| | markovnikov hydrosilylation |
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| | metal |
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| | molecular-orbital methods |
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| | Paramagnetic NMR |
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| | Pincer ligands |
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| | reaction pathways |
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| | zeta valence quality |
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| K10plus-PPN: | 1725571552 |
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| Verknüpfungen: | → Zeitschrift |
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| Lokale URL UB: |  Zum Volltext |
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NNN-Cobalt(II) pincer complexes / Blasius, Clemens K. [VerfasserIn]; 20 May 2020 (Online-Ressource)
68620946
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