It should be noted that most of these applications require modi™cation of boron hydride clusters mainly through a substitution of various atoms or functional groups for hydrogen atoms. For the icosahedral carboranes C2B10H12 this problem can be easily solved due to availability of their carbon atoms for “normal” organic chemistry and synthesis of a wide range of carborane-based molecules have been described [4-6]. Another situation arose with anionic boron hydrides, where controlled substitution at boron atoms was a challenge for boron chemists during a few decades. Halogenation of anionic boron hydrides is well studied [7-16] and some halogenated boron hydrides found application as weakly coordinating anions for stabilization of highly reactive complexes and reaction intermediates [14], as components of electrolytes in lithium-ion batteries [17,18] and ion-selective electrodes [19,20], in extraction of radionuclides from nuclear waste [21,22].