title: Bis[3-(dihydroxy-boryl)anilinium] sulfate.
abstract: In the title compound, 2C(6)H(9)BNO(2) (+)·SO(4) (2-), the dihydroxy-boryl group of one of the two independent boronic acid mol-ecules participates in (B)O-H⋯O(B) and N-H⋯O(B) hydrogen bonds, while the second is involved mainly in the formation of the charge-assisted heterodimeric synthon -B(OH)(2)⋯(-)O(2)SO(2) (-). These aggregates are further connected through N-H⋯O(sulfate) inter-actions, forming a complex three-dimensional hydrogen-bonded network.
authors.affiliation: Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, CP 62209, Cuernavaca, Mexico.
authors.forename: Araceli
authors.initials: A
authors.lastname: Vega
authors.forename: Rolando
authors.initials: R
authors.lastname: Luna
authors.forename: Hugo
authors.initials: H
authors.lastname: Tlahuext
authors.forename: Herbert
authors.initials: H
authors.lastname: Höpfl