Over the last few decades, carboranes have been in the focus of interest due to their potential to become a 3D electronic σ-conductor or a building block of a global 2D/3D aromatic compound. Multiple studies showed that the conjugative properties of the well-known icosahedral (car)boranes are hindered compared to 2D π-aromatic systems, and the possible interactions can be attributed to hyperconjugation with local character. However, recent promising experimental and computational results on the conjugative ability of ten-vertex (car)boranes led us to perform a thorough investigation on the ten-vertex systems.
Gál et al. (Fri,) studied this question.