catena-Poly[[(1,10-phenanthroline-κ2N,N′)lanthanum(III)]-μ-(5-bromo-2-hydroxybenzoato)-κ2O1:O1′-di-μ-chlorido]

Abstract

In the title complex, [La(C7H4BrO3)Cl2(C12H8N2)]n, the LaIII ion is eight-coordinated by two carboxylate O atoms from two 5-bromosalicylate ligands, two N atoms from a chelating 1,10-phenanthroline ligand and four bridging Cl atoms in a distorted square-antiprismatic geometry. The LaIII ions are linked by bridging carboxylate groups and chloride anions into a chain along [100]. An intramolecular O—H...O hydrogen bond is formed in the 5-bromosalicylate ligand. π–π interactions between the pyridine and benzene rings and between the benzene rings are observed [centroid–centroid distances = 3.794 (5) and 3.804 (4) Å].