Reactions of Experimentally Known Closo-C2B8H10 with Bases. A Computational Study

On the basis of the direct transformations of closo-1,2-C2B8H10 with OH(-) and NH3 to arachno-1,6,9-OC2B8H13(-) and arachno-1,6,9-NC2B8H13, respectively, which were experimentally observed, the DFT computational protocol was used to examine the corresponding reaction pathways. This work is thus a computational attempt to describe the formations of 11-vertex arachno clusters that are formally derived from the hypothetical closo-B13H13(2-). Moreover, such a protocol successfully described the formation of arachno-4,5-C2B6H11(-) as the very final product of the first reaction. Analogous experimental transformations of closo-1,6-C2B8H10 and closo-1,10-C2B8H10, although attempted, were not successful. However, their transformations were explored through computations.