title: 7-Pivaloyl-5,6-dihydro-4H-naphtho[3,2,1-de]isoquinoline-4,6-dione.
abstract: In the crystal structure of the title compound, C(21)H(17)NO(3), the dibenzo-isoquinoline-dione unit has a planar structure, the maximum atomic deviation being 0.091 (3) Å. The crystal structure is stabilized by π-π stacking [centroid-centroid distance = 3.851 (2) Å] and inter-molecular N-H⋯O hydrogen bonding.
authors.affiliation: School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, People's Republic of China.
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Yu
authors.forename: Yi
authors.initials: Y
authors.lastname: Wei
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang