Synthesis and Structural Characterization of Bis- and Tris(closo-1,2-C2B10H11-1-yl)-Substituted Biphenyl and Benzene

The synthesis and characterization of di-and tricarborane-substituted biphenyl and benzene derivatives are described. The direct reaction of aromatic alkyne with B10H12(Et2S)2 provides the title compounds in high yields. These molecules are a class of structurally important modular components for the construction of carborane-based supramolecular structures.