Syntheses, Crystal Structures and Properties of Two New Manganese(II) Coordination Polymers with Tetrafluorophthalate Ligands

Abstract

Two new polymeric Mn II complexes, {[Mn(1,2-BDC-F 4 )(H 2 O) 3 ](EtOH)} n (1) and [Mn(1,2-BDC-F 4 )(H 2 O) 2 (DMF)] n (2), have been prepared from the reaction of Mn II acetate with 3,4,5,6-tetrafluoro-benzene-1,2-dicarboxylic acid (1,2-H 2 BDC-F 4 ) using different solvents, and characterized by elemental analysis, IR spectroscopy, thermogravimetric (TG) analysis, and single-crystal Xray structure analysis. Both complexes crystallize in the triclinic space group P1 and have similar one-dimensional double chain structures, consisting of a unique arrangement of 8-membered and 14-membered rings. The effects of solvent as ligand and/or guest on the self-assembly processes of the supramolecular networks and on their photoluminescence properties in the solid state are discussed.