Boron‐Metallated Borirenes and Bis(Borirenes) |
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| Authors: | Prof?Dr Holger Braunschweig Dr Mehmet Ali Celik Dr Rian D Dewhurst Dr Katharina Ferkinghoff Dr Krzysztof Radacki Felix Weißenberger |
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| Institution: | Institut für Anorganische Chemie, Julius-Maximilians-Universit?t Würzburg, Würzburg, Germany |
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| Abstract: | Heating the metalloborylene complex {(η5‐C5Me5)Fe(CO)2}(μ‐B){Cr(CO)5}] with alkynes and diynes leads to the formation of B‐metallated borirenes and a bis(B‐metallated borirene) through formal transfer of the metalloborylene moiety (η5‐C5Me5)(OC)2Fe(B:)]. By using this protocol, a range of B‐metallated borirenes with electron‐donating and electron‐withdrawing substituents are prepared, and these are studied spectroscopically, structurally, and computationally. The yellow‐orange color of the complexes is additionally explained through time‐dependent density functional theory calculations. |
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| Keywords: | alkynes boron bridging ligands iron small-ring systems |
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