Metallacarboranes: New synthetic strategies and structural patterns*
Narayan S. Hosmane1 and John A. Maguire2
1Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115-2862, USA; 2Department of Chemistry, Southern Methodist University, Dallas, TX 75275, USA
Abstract: A summary of the latest results in the authors' laboratories covering three areas is presented. The results of the controlled syntheses of oxide ion encapsulating lanthanacarboranes, by the introduction of stoichiometric amounts of H2O in the synthesis reactions, and the strictures of the resulting compounds were discussed. The scope and limitations of a general method for the synthesis of the open pentadienyl complexes were presented. In addition, the results of a systematic study of the reactions of the [2,n-(SiMe3)2-nido-2,n-C2B4H4]2- (n = 3, 4) with the late transition-metal salts MCl2 (M = Fe, Co, Ni) were discussed.
Keywords: metallacarboranes; lanthanacarboranes; open pentadienyl complexes; carbaborane cages; carbaboranes.
*Paper based on a presentation at the 12th International Meeting on Boron Chemistry (IMEBORON-XII), Sendai, Japan, 11-15 September 2005. Other presentations are published in this issue, pp. 1299-1453.