Crystal Structures of Metal-Organic Frameworks Based on Magnesium Cations and Isomeric Tetrafluorobenzenedicarboxylate Ligands

Abstract Coordination polymers [Mg(EtOH)3(H2O)(1,3-tFBDC)]·EtOH (1), [Mg(MeOH)2(1,2-tFBDC)] (2), [{Mg(H2O)2(EtOH)2}Mg(1,2-tFBDC)2] (3), and [Mg(EtOH)2(1,4-tFBDC)] (4) are obtained in the interaction of magnesium hydroxide with various isomers of tetrafluorobenzene dicarboxylic acid (phthalic, isophthalic, and terephthalic; H2tFBDC) in alcohol solutions (MeOH or EtOH). The compositions and structures of these compounds are determined by single crystal X-ray diffraction. Compound 1 is a chain coordination polymer; compounds 2–4 have layered structures.