What is "hexaborane"

Hexaborane, also called hexaborane(10) to distinguish it from hexaborane(12) (BH), is an inorganic compound with the formula BH. It is a colorless liquid that is unstable in air.

Hexaborane(12) is an inorganic compound with the formula BH. It is an obscure member of the boranes. It is a colorless liquid that, like most boron hydrides, is readily hydrolyzed and flammable.

The molecular structure conforms to C symmetry group. With the formula BH, it is classified as an arachno cluster. As such the boron positions match six of the boron positions in the closo-BH.