Hydrothermal Synthesis of Three Novel\nMultidimensional Metal−Organic Frameworks with\nUnusual Units and Mixed Ligands

The hydrothermal reactions of 1,2,4-benzenetricarboxylate (H3btrc), 4,4‘-bipyridine (4,4‘-bpy), or 1,10-phenanthroline (1,10-phen) with transition metal acetates in basified solvent gave rise to three novel coordination\npolymers, [Ni3(btrc)2(4,4‘-bpy)2(H2O)5]n·2nH2O (1), [Cu3(btrc)2(1,10-phen)3]n (2), and [Co(H2btrc)2(4,4‘-bpy)3(H2O)2]n\n(3), which show respectively three-dimensional polymeric architecture, two-dimensional lamella, and one-dimensional\nchain architecture. Interestingly, the noncentrosymmetric compound 1 is constructed by beautiful “S” ribbons and\nexhibits very interesting ferromagnetic properties.