52 Synthesis, Structure and Reactivity of Novel Ruthenium-Monocarborane Cage Complexes

Wednesday, November 4, 2009
Ballroom A+B (Camino Real Hotel)
Sivaramakrishna Akella , Department of Chemistry and Biochemistry, Baylor University, Waco, TX
Bruce E. Hodson , Department of Chemistry and Biochemistry, Baylor University, Waco, TX
F. Gordon A. Stone , Department of Chemistry and Biochemistry, Baylor University, Waco, TX

Synthesis, Structure and Reactivity of Novel Ruthenium-Monocarborane Cage Complexes

 

Akella Sivaramakrishna, Bruce E. Hodson, and F. Gordon A. Stone*

Department of Chemistry & Biochemistry, Baylor University, Waco, Texas

76798-7348

Metallamonocarboranes are known for their unusual reactivity in comparison with their dicarbollide counterparts. Subicosahedral species in particular have been shown to undergo a range of cluster expansion, contraction and cage functionalization reactions not observed for corresponding dicarbon clusters [1]. We have recently shown that eight-vertex [NBu4][closo-1-CB7H8] (1) is highly amenable to oxidative insertion of zero-valent {M(CO)3} fragments (M = Fe, Mn) [2]. Similarly, we are now able to report the synthesis of the ruthenium-monocarborane complex, [N(PPh3)2][7,7,7-(CO)3-closo-7,1-RuCB7H8] (2) from 1 and [Ru3(CO)12] (see Eq.1). The reactivity of 2 with various substrates is discussed.

  1. T.D. McGrath and F.G.A. Stone, Adv. Organomet. Chem. 2005, 53, 1 and the references therein.
  2. a) A. Franken, T.D. McGrath and F.G.A. Stone, Organometallics 2005, 24, 5157; b) A. Franken, T.D. McGrath and F.G.A. Stone, Organometallics 2009, 28, 225.
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