Plumbum(II) and Zinc(II) Complexes with 5-Chlorosalicylic Acid: Structure and Propertie

Two new transition metal complexes, containing the acidic ligand 5-chlorosalicylic acid (H2L5), and 1,10-phenanthroline（phen）and 1,3-di(4-pyridyl)propane (bpp) as secondary ligands are reported, these two are formulated as {[Pb(HL5)2(phen)(H2O)]·H2O}n (1), and [Zn2(HL5)4(bpp)2]n (2), and are characterized by single-crystal X-ray diffraction. Compoud 1 crystallizes in the triclinic P-1 space group while compoud 2 in the monoclinic system with space group C2/c. In compund 1, the carboxylate group of the coordinated HL5- adopt к^2O,O coordination fashion to connect one Pb(II) ion but all the carboxylate groups adopt the different μ1-η^1: η^1 mode in the crystal of compoud 2 compared to 1. The solid-state photoluminescent properties at room temperature and thermal decomposition process of complexes were investigated.