title: 2-Phenyl-naphtho-[1,8-de][1,3,2]diaza-borinane.
abstract: The title compound, C(16)H(13)BN(2), is one compound in a series of diaza-borinanes featuring substitution at the 1, 2 and 3 positions in the nitro-gen-boron heterocycle. The title compound is slightly distorted from planarity, with a dihedral angle of 9.0 (5)° between the mean planes of the naphthalene system and the benzene ring. The m-carbon atom of the benzene ring exhibits the greatest deviation of 0.164 (2) Å from the 19-atom mean plane defined by all non-H atoms. The two N-B-C-C torsion angles are 6.0 (3) and 5.6 (3)°. In the crystal, mol-ecules are linked by π-π inter-actions into columns, with a distance of 3.92 (3) Å between the naphthalene ring centroids. Adjacent π-stacked columns, co-linear with the b-axis, are linked by C-H⋯π inter-actions.
authors.affiliation: Warren Research Laboratory, School of Chemistry, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209,  South Africa.
authors.forename: Cathryn A
authors.initials: CA
authors.lastname: Slabber
authors.forename: Craig
authors.initials: C
authors.lastname: Grimmer
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Akerman
authors.forename: Ross S
authors.initials: RS
authors.lastname: Robinson
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