Crystal structure,TGA and magnetic properties of a novel 2D coordination polymer [Mn2(btr)(mu-ox)2(H2O)2] centre dot 2H2O

摘要

The self-assembly of Mn(II) ions,oxalate anions and 4,4'-bis-1,2,4-triazole (btr) gave a novel 2D coordination polymer,which are characterized via X-ray single-crystal diffraction,TGA and varied temperature magnetic susceptibility.The crystal structure reveal that Mn(II) centers are linked via bis(bidentate) oxalate anion to form 1D zigzag chains,furthermore btr link these 1D chains into 2D coordination layers.Strong antiferromagnetic interactions between Mn(II) ions are found with J = -2.06 cm~(-1).