Boron

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The molecular hydrides of boron. NOC Rule D-7.1. E.g. B₅H₉ pentaborane(9).

boranylidenes:*

The species RB: containing an electrically neutral univalent boron atom with two formally non-bonding electrons. See carbene analogues.

borenes: A traditional term for boranylidenes.

borinic acids:*

Compounds having the structure R₂BOH. NOC Rule D-7.42, footnote.

boronic acids:*

Compounds having the structure RB(OH)₂. NOC Rule D-7.42, footnote.

borylenes: A traditional term for boranylidenes.

carbaboranes: See carboranes.

carboranes:

(A contraction of carbaboranes.) Compounds in which a boron atom in a polyboron hydride is replaced by a carbon atom with maintenance of the skeletal structure. (NOC Rule D-7.45 uses 'carbaboranes', but the contracted form is almost universally used.)