Steric Effects Dictate the Formation of Terminal Arylborylene Complexes of Ruthenium from Dihydroboranes
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- The steric and electronic properties of aryl substituents in monoaryl borohydrides (Li[ArBH\(_3\)]) and dihydroboranes were systematically varied and their reactions with [Ru(PCy\(_3\))\(_2\)HCl(H\(_2\))] (Cy: cyclohexyl) were studied, resulting in bis(σ)‐borane or terminal borylene complexes of ruthenium. These variations allowed for the investigation of the factors involved in the activation of dihydroboranes in the synthesis of terminal borylene complexes. The complexes were studied by multinuclear NMR spectroscopy, mass spectrometry, X‐rayThe steric and electronic properties of aryl substituents in monoaryl borohydrides (Li[ArBH\(_3\)]) and dihydroboranes were systematically varied and their reactions with [Ru(PCy\(_3\))\(_2\)HCl(H\(_2\))] (Cy: cyclohexyl) were studied, resulting in bis(σ)‐borane or terminal borylene complexes of ruthenium. These variations allowed for the investigation of the factors involved in the activation of dihydroboranes in the synthesis of terminal borylene complexes. The complexes were studied by multinuclear NMR spectroscopy, mass spectrometry, X‐ray diffraction analysis, and density functional theory (DFT) calculations. The experimental and computational results suggest that the ortho‐substitution of the aryl groups is necessary for the formation of terminal borylene complexes.…
Autor(en): | Carsten Lenczyk, Dipak Kumar Roy, Jörn Nitsch, Krzysztof Radacki, Florian Rauch, Rian D. DewhurstORCiD, F. Matthias BickelhauptORCiD, Todd B. MarderORCiD, Holger BraunschweigORCiD |
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URN: | urn:nbn:de:bvb:20-opus-219537 |
Dokumentart: | Artikel / Aufsatz in einer Zeitschrift |
Institute der Universität: | Fakultät für Chemie und Pharmazie / Institut für Anorganische Chemie |
Sprache der Veröffentlichung: | Englisch |
Titel des übergeordneten Werkes / der Zeitschrift (Englisch): | Chemistry - A European Journal |
ISSN: | 1521-3765 |
Erscheinungsjahr: | 2019 |
Band / Jahrgang: | 25 |
Heft / Ausgabe: | 59 |
Seitenangabe: | 13566-13571 |
Originalveröffentlichung / Quelle: | Chemistry - A European Journal (2019), 25:59, 13566-13571. doi:10.1002/chem.201902890 |
DOI: | https://doi.org/10.1002/chem.201902890 |
Allgemeine fachliche Zuordnung (DDC-Klassifikation): | 5 Naturwissenschaften und Mathematik / 54 Chemie / 546 Anorganische Chemie |
Freie Schlagwort(e): | Arylborylene Complexes; Dihydroboranes; Ruthenium; boranes; borohydrides; borylenes; sigma boranes; steric effects |
Datum der Freischaltung: | 22.12.2020 |
Datum der Erstveröffentlichung: | 21.08.2019 |
Lizenz (Deutsch): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |