catena-Poly[[(1,10-phenanthroline-κ² N,N')lanthanum(III)]-μ-(5-bromo-2-hy-droxy-benzoato)-κ² O¹:O¹'-di-μ-chlorido].

In the title complex, La(C₇H₄BrO₃)Cl₂(C₁₂H₈N₂), the La(III) ion is eight-coordinated by two carboxyl-ate O atoms from two 5-bromo-salicylate ligands, two N atoms from a chelating 1,10-phenanthroline ligand and four bridging Cl atoms in a distorted square-anti-prismatic geometry. The La(III) ions are linked by bridging carboxyl-ate groups and chloride anions into a chain along [100]. An intra-molecular O-H⋯O hydrogen bond is formed in the 5-bromo-salicylate ligand. π-π inter-actions between the pyridine and benzene rings and between the benzene rings are observed [centroid-centroid distances = 3.794 (5) and 3.804 (4) Å].