Hydrothermal Synthesis and Crystal Structure of a Manganese Complex

The title compound [Mn(Phen)(p-MBA)2]n(1) was synthesized via the hydro-thermal reaction of KMnO4 and NaOH with phen and p-methybenzoic acid(p-MBA) in water.The title compound was characterized by elemental analysis and infrared spectra.The crystal of 1 crystallizes in orthorhombic,space group Pbcn with a = 24.132(1),b = 10.404(0),c = 9.386(0) ,V = 2356.65(13) 3,Z = 4,C28H22MnN2O4,Mr = 505.42,Dc = 1.424 g/cm3,F(000) = 1044 and μ(MoKα) = 0.598 mm-1.The final R = 0.0781 and wR = 0.1363 for 1972 observed reflections with Ⅰ > 2σ(Ⅰ) and R = 0.0897 and wR = 0.1420 for all data.X-ray diffraction reveals that the Phen and p-methy benzoic acid ligand link the Mn atoms into a single one-dimensional coordination polymer,and extensive intermolecular π-π interactions lead these 1D chains to form a two-dimensional supramolecular architecture.