No abstract

Crystals of the title compound, CI9H23N, are triclinic, P1, with a= 10.143, b= 9.863, c= 9-568/~, ~= 111.38, fl= 116.08, 7=91-71 °, and Z=2. The crystal structure has been determined by the symbolic addition procedure and refined by the least-squares method to R = 0.052 for the 1993 observed reflexions. The azocine ring has the twist-boat conformation with half of the molecules left-handed and the other half right-handed, but otherwise the same degree of twist for all molecules. The endocyclic angle at N is 113.0 (2) ° and the exocyclic angles are 115.1 (2) and 115.4 (2)°; mean= 114-5 °. The length of the N.• .C diagonal is 2.86 A, indicating very weak transannular interaction across the azocine ring. Some preferred localization of electronic charge is observed in the benzene rings.