Carbaborane salts of [ZnCl(Hpz^tBu)₃]⁺, a host for inorganic anions (Hpz^tBu = 5-tert-butylpyrazole)

Abstract

The cations in [ZnCl(HpztBu)3]Y (Y− = [Co(C2B9H11)2]− or [1-Ph-closo-1-CB9H9]−) associate into dimers in the crystal, presenting a bowl-shaped face into which the carbaborane anions can pack. In contrast, the cations in [ZnCl(HpztBu)3][6,7,8,9,10-Br5-closo-1-CB9H5]·H2O associate with each other into a 1-D hydrogen-bonded polymer.