Novel neutral zirconaborane [(Cp2Zr)2B5H11]: an arachno-B3H9 analogue (Cp = η5-C5H5)

Roy, Dipak Kumar ; Mondal, Bijan ; De, Anangsha ; Panda, Subhankar ; Ghosh, Sundargopal (2015) Novel neutral zirconaborane [(Cp2Zr)2B5H11]: an arachno-B3H9 analogue (Cp = η5-C5H5) Organometallics, 34 (5). pp. 908-912. ISSN 0276-7333

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The first example of a homometallic neutral zirconaborane, [(Cp2Zr)2B5H11], 1, has been prepared through the thermolysis of [Cp2Zr(BH4)2], generated from the fast metathesis reaction of [Cp2ZrCl2] and LiBH4·thf with BH3·thf. The solid-state structure of 1 shows an open geometry with a planar B3 ring. The bonding between the Zr center and the central B3 ring was studied computationally by DFT methods, and based on the combined experimental and computational results compound 1 can be defined as a metal-stabilized arachno-B3H9. Further, in an attempt to synthesize a hybrid analogue of 1 by introducing two electron fragments into arachno-[(Cp2Zr)(Cp*Ir)B4H10], 2, we have performed the reaction of 2 with [Ru3(CO)12]. However, the reaction led to the formation of a hybrid metallaborane, [(Cp*Ir){Ru3(CO)8}B4H10], 3.

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Source:Copyright of this article belongs to American Chemical Society.
ID Code:109033
Deposited On:31 Jan 2018 12:28
Last Modified:31 Jan 2018 12:28

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