In chemistry, a boranylium ion is an inorganic cation with the chemical formula BR⁺
₂, where R represents a non-specific substituent. Being electron-deficient, boranylium ions form adducts with Lewis bases. Boranylium ions have historical names that depend on the number of coordinated ligands:
[BR
₂]⁺
: borinium
[BR
₂L]⁺
: borenium
[BR
₂L
₂]⁺
: boronium From Wikipedia
