摘要:
The title compounds, catena-poly [diaquacalcium-bis-mu-(9,10-dihydro-9-oxo-10-acridineacetato-O,O':O)], [Ca-(CMA)(2)(H2O)(2)], and the analogous lead(II) compound, [Pb(CMA)(2)(H2O)(2)] (CMA = C15H10NO3), are carboxyl ate-bridged linear polymers in the solid state. Each ligand chelates one metal ion and bridges to the next metal ion. Two water molecules complete eightfold coordination around the Ca and Pb atoms. Adjacent polymer chains show stacking interactions of parallel acridone groups and there are hydrogen bonds linking aqua ligands to carboxylate and ketone O atoms.