title: 2,4,6-Tris-(4-fluoro-phen-yl)-2-(1-pyrid-yl)-boroxine.
abstract: Crystals of the title compound, C(23)H(17)B(3)F(3)NO(3), were obtained unintentionally by slow evaporation of a chloro-form solution of the preformed boroxine-pyridine adduct. The mol-ecule contains three fluoro-substituted benzene rings, each bonded to one of the three B atoms of a six-membered boroxine ring. A pyridyl ring is also bound to one of the B atoms through a Lewis acid-base inter-action. The binding of the pyridyl substituent causes the otherwise planar boroxine ring to twist, resulting in a maximum torsion angle within the ring of 17.6 (2)°.
authors.forename: Wayne H
authors.initials: WH
authors.lastname: Pearson
authors.forename: Shirley
authors.initials: S
authors.lastname: Lin
authors.forename: Peter M
authors.initials: PM
authors.lastname: Iovine