Ansa‐Bridged Bis(benzene) Titanium Complexes |
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| Authors: | Prof?Dr Holger Braunschweig Charlotte Brückner Dr Mehmet Ali Celik Dr Klaus Dück Dr Florian Hupp Dr Thomas Kramer Johannes Krebs Dr Ivo Krummenacher |
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| Institution: | Institut für Anorganische Chemie, Julius‐Maximilians‐Universit?t Würzburg, Am Hubland, 97074 Würzburg (Germany), Fax: (+49)?931‐31‐84623 |
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| Abstract: | Taking advantage of an improved synthesis of Ti(η6‐C6H6)2], we report here the first examples of ansa‐bridged bis(benzene) titanium complexes. Deprotonation of Ti(η6‐C6H6)2] with nBuLi in the presence of N,N,N′,N′′,N′′‐pentamethyldiethylenetriamine (pmdta) leads to the corresponding 1,1′‐dilithio salt Ti(η6‐C6H5Li)2] ? pmdta that enables the preparation of the first one‐ and two‐atom‐bridged complexes by simple salt metathesis. The ansa complexes were fully characterized (NMR spectroscopy, UV/Vis spectroscopy, elemental analysis, and X‐ray crystallography) and further studied electrochemically and computationally. Moreover, Ti(η6‐C6H6)2] is found to react with the Lewis base 1,3‐dimethylimidazole‐2‐ylidene (IMe) to give the bent sandwich complex Ti(η6‐C6H6)2(IMe)]. |
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| Keywords: | arene ligands Group 14 elements sandwich complexes solid‐state structures titanium |
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