Abstract

The orange complex Cp*Fe(C5H5BMe) (1a) was synthesized from [Cp*Fe(NCMe)3]PF6 and Li(C5H5BMe) in 91% yield. Electrophilic stacking reactions with metalloelectrophiles gave the triple-decker salts [(μ-C5H5BMe)(FeCp*)2]PF6 (4), [(μ-C5H5BMe)(FeCp*)(RuCp*)]CF3SO3 (5), and [(μ-C5H5BMe)(FeCp*)(MCp*)](CF3SO3)2 with M = Rh (for 6) and M = Ir (for 7). Electrophilic stacking of Rh(C5H5BMe)(COD) (8) with [(COD)Rh(MeNO2)x]CF3SO3 gave [(μ-C5H5BMe){Rh(COD)}2CF3SO3 (10). The structures of the two triple-decker complexes 4 and 10 were determined by X-ray diffraction. Boratabenzene transfer reactions were found for the heterobimetallic salts 5−7.

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