Syntheses, Crystal Structures, Luminescent and Magnetic Properties of 2D Manganese(II) and Zinc(II) Coordination Polymers Based on an Ether-Bridged Tetracarboxylic Acid

Two 2D manganese(II) and zinic(II) coordination polymers, namely {[Mn-2(mu(6)-L)(phen)(2)]center dot 5H(2)O}(n) (1) and {[Zn-2(mu(7)-L)(py)]center dot H2O}(n) (2), have been constructed hydrothermally using H4L (H4L=3,3',4,5'-diphenyl ether tetracarboxylic acid), phen (phen=1,10-phenanthroline), py (py=pyridine), and manganese or zinc chlorides. Single-crystal X-ray diffraction analyses revealed that two complexes crystallize in the triclinic or monoclinic systems, space groups P (1) over bar or I2/a. Both complexes feature a 2D sheet structure based on Mn-4 or Zn-2 subunits. The luminescent and magnetic properties for two complexes were also investigated. The results of fluorescence and magnetic studies show that complex 2 can emit blue fluorescence at room temperature, and antiferromagnetic interactions exist between adjacent Mn(II) ions in polymer 1. CCDC: 1943370, 1; 1943371, 2.