Crystal and Molecular Structure of 3,3,6,6 - tetramethyl - 10 -(2- hydroxybenzoylamino) -3,4,6,7,9,10-hexahydroacridine - 1,8 - dione

Abstract

The crystal structure of the title compound (C24H28N2O4) was determined from X-ray diffraction data using direct methods [CCDC No. 154342]. It crystallized in the non- centrosymmetric orthorhombic space group P212121. The unit cell parameters are : a = 9.351(2), b = 14.191(3), c = 17.051(2)Å, α = β = γ = 90°; Z = 4. The final R factor is 0.054. The central pyridine ring is nearly planar while the outer rings adopt sofa/half chair conformation. Alternate acridine molecules are stacked in an almost parallel manner. The results are compared with those obtained for previously studied two benzoylaminoacridinedione derivatives.