“Water-stable boron-iodinated dicarbollide dianions [7,8-nido-C2H2B9I9]2− and [7,8-nido-C2H2B9I8H]2−”

Abstract

The reaction of 3,4,5,7,8,9,10,11,12-I₉-1,2-closo-C₂B₁₀H₃ with KOH/EtOH gave a mixture of the boron periodinated [1,2,3,4,5,6,9,10,11-I₉-7,8-nido-C₂B₉H₂]²⁻ and the highly iodinated on boron [1,2,4,5,6,9,10,11-I₈-7,8-nido-C₂B₉H₃]²⁻ in approximately 50% each. Moreover, 3,4,5,6,7,8,9,10,11,12-I₁₀-1,2-closo-C₂B₁₀H₂ was reacted with KOH/EtOH to purely produce [1,2,3,4,5,6,9,10,11-I₉-7,8-nido-C₂B₉H₂]²⁻. It is the first dinegative dicarbollide stable in water or protic solvent reported in literature.