An early–late transition metal hybrid analogue of hexaborane(12)

Anju, R. S. ; Roy, Dipak Kumar ; Mondal, Bijan ; Ramkumar, V. ; Ghosh, Sundargopal (2013) An early–late transition metal hybrid analogue of hexaborane(12) Organometallics, 32 (16). pp. 4618-4623. ISSN 0276-7333

Full text not available from this repository.

Official URL:

Related URL:


Metal assisted borane condensation method has been employed for the preparation of novel metallaborane cluster containing group 4 metal. Pyrolysis of [Cp*IrB3H9], 1, with in situ generated zirconium bisborohydrate [Cp2Zr(BH4)2], produced from the fast metathesis reaction of [Cp2ZrCl2] and LiBH4, and excess of BH3·THF yielded arachno-[(Cp2Zr)(Cp*Ir)B4H10], 2, in 56% yield. Compound 2 constitutes the first crystallographic structure determination of hexaborane(12) metal analogue containing zirconium. The observed geometry of 2 can be generated from a dodecahedron by removing two vertices and an edge. Anticipating a straight metal fragment substitution/addition reaction, mild thermolysis of 2 with [Fe2(CO)9] was carried out. However, the reaction led to the formation of known trimetallic [Cp*IrFe2(CO)9] cluster via cluster degradation. In addition, density functional theory (DFT) calculations have been carried out for 2 and other hypothetical early–late combinations of hexaborane(12) metal analogues to reveal the electronic structures.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:109023
Deposited On:31 Jan 2018 12:26
Last Modified:31 Jan 2018 12:26

Repository Staff Only: item control page