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  • 2022 (1)
  • 2021 (3)

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  • Schorr, Fabian (4)
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  • Institut für Anorganische Chemie (4)

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Der Einfluss von Alkinyl- und Thienyl-Substituenten auf die Reaktivität von Diboranen(4) (2022)
Schorr, Fabian
Im Rahmen der Arbeit werden neue Alkinyl-substituierte Diaryldiborane(4) dargestellt und auf deren Eignung zur Oligomerisierung untersucht. Des Weiteren werden neue 1,2-Dialkinyldiborane(4) synthetisiert und deren Reaktivität beleuchtet. Außerdem werden neue 1,2-Diaryl-1,2-diheteroaryldiborane(4) dargestellt und ebenfalls auf deren Reaktivität hin untersucht.
Reactivity of Terminal Iron Borylenes and Bis(borylenes) with Carbodiimides: Cycloaddition, Metathesis, Insertion and C−H Activation Pathways (2021)
Matler, Alexander ; Arrowsmith, Merle ; Schorr, Fabian ; Hermann, Alexander ; Hofmann, Alexander ; Lenczyk, Carsten ; Braunschweig, Holger
The reactions of carbodiimides with the iron arylborylene complex [Fe=BDur(CO)\(_{3}\)(PMe\(_{3}\))] (Dur=2,3,5,6-Me\(_{4}\)C\(_{6}\)H) and the iron bis(borylene) complex [Fe{=BDur}{=BN(SiMe\(_{3}\))\(_{2}\)}(CO)\(_{3}\)] yield a wide variety of temperature-dependent products, including known FeBNC and novel FeBNB metallacycles, complexes of N-heterocyclic boracarbene and spiro-boracarbene ligands and a unique 1,3,2,4-diazadiborolyl pianostool complex, characterized by NMR spectroscopy and X-ray crystallography. The product distributions can be rationalized by considering sequences of cycloaddition, metathesis, insertion, and C−H activation pathways mainly governed by sterics.
Controlled Synthesis of Oligomers Containing Main-Chain B(sp\(^{2}\))-B(sp\(^{2}\)) Bonds (2021)
Schorr, Fabian ; Schopper, Nils ; Riensch, Nicolas ; Fantuzzi, Felipe ; Neder, Marco ; Dewhurst, Rian D. ; Thiess, Thorsten ; Brückner, Tobias ; Hammond, Kai ; Helten, Holger ; Finze, Maik ; Braunschweig, Holger
A number of novel alkynyl-functionalized diarylbis(dimethylamino)diboranes(4) are prepared by salt metathesis, and the appended alkynyl groups are subjected to hydroboration. Their reactions with monohydroboranes lead to discrete boryl-appended diborane(4) species, while dihydroboranes induce their catenation to oligomeric species, the first known examples of well-characterized macromolecular species with B−B bonds. The oligomeric species were found to comprise up to ten repeat units and are soluble in common organic solvents. Some of the oligomeric species have good air stability and all were characterized by NMR and vibrational spectroscopy and size-exclusion chromatography techniques.
A neutral beryllium(I) radical (2021)
Czernetzki, Corinna ; Arrowsmith, Merle ; Fantuzzi, Felipe ; Gärtner, Annalena ; Tröster, Tobias ; Krummenacher, Ivo ; Schorr, Fabian ; Braunschweig, Holger
The reduction of a cyclic alkyl(amino)carbene (CAAC)-stabilized organoberyllium chloride yields the first neutral beryllium radical, which was characterized by EPR, IR, UV/Vis spectroscopy and X-ray crystallography. DFT calculations show significant spin density at beryllium and confirm donor–acceptor bonding between an alkylberyllium radical fragment and a neutral CAAC ligand.
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