title: (Acridine-κN)(pyridine-2,6-dicarboxyl-ato-κ(3)O(2),N,O(6))palladium(II).
abstract: In the title complex, [Pd(C(7)H(3)NO(4))(C(13)H(9)N)], the Pd(II) ion is four-coordinated in a distorted square-planar environment by one N and two O atoms from the tridentate pyridine-2,6-dicarboxyl-ate (dipic) anionic ligand and one N atom of the acridine (acr) ligand. The dipic and acr ligands are nearly planar [maximum deviation = 0.069 (3) Å in dipic and 0.091 (4) Å in acr] and the dihedral angle between their mean planes is 58.67 (7)°. The Pd-O bond lengths are nearly equal, but the Pd-N bond lengths are slightly different. There is a short C-H⋯O inter-action in the mol-ecule involving the two ligands. In the crystal, complex mol-ecules are linked through C-H⋯O inter-actions, forming a three-dimensional network. There are also a number of inter-molecular π-π inter-actions present, the shortest ring centroid-centroid distance being 3.622 (3) Å.
authors.affiliation: School of Applied Chemical Engineering, Research Institute of Catalysis, Chonnam National University, Gwangju 500-757,  Republic of Korea.
authors.forename: Kwang
authors.initials: K
authors.lastname: Ha