A New One Dimensional Mn(III) Coordination Polymer Constructed by a Salicylamide Imine Multidentate Ligand: Structure, Magnetic and Luminescent Properties

A new Mn(III) coordination polymer, [MnL]n, based on a salicylamide imine multidentate ligand, 1-(2-hydroxy-benzamido)-2-(2-hydroxy-5-nitrobenzylideneamino)-ethane (H3L) was prepared. Single crystal analysis revealed that the title compound was a herringbone like Mn(III) coordination polymer where deprotonated ligand L3– acted as a pentadentate ligand with amide group being bridge to connect two Mn(III) centres. Magnetic susceptibilities indicates that [MnL]n exhibits an antiferromagnetic coupling with a long-range canted antiferromagnetic ordering and metamagnetic behavior at low temperatures. And the photophysical determination shows that [MnL]n also displays strong long life red luminescence. The results presented herein indicates [MnL]n appears to be an excellent candidate for multifunctional material as a result of its high thermal stability, interesting magnetic and luminescent properties.