The X-ray structure of bis(salicylidene)- 4,4ʹ -biphenylenediamine

Abstract

The X-ray structure of the Schiff base compound bis(salicylidene)- 4,4ʹ -biphenylenediamine (<b>I</b>) has been determined. Crystallographic results are: C₂₆H₂₀N₂O₂, triclinic, Z P1 = 2, a = 6.141(2) Å, b = 7.213(1)Å, c = 22.219(5 )Å, α = 84.60(2)^o , β = 88.81 (2)°, γ= 89.98(2)° . There are two independent molecules in the unit cell, neither of which is planar. The molecules pack with a somewhat unusual pattern with the aromatic rings of adjacent molecules oriented about half-way between the expected face-to- face or edge-to-face arrangements.