Abstract
Three new heterometallic coordination polymers [Dy2(pydc)6Mg3(H2O)6]·11H2O (1), [Dy(pydc)3][Mg(H2O)6]·Him·7H2O (2), and [Dy(pydc)3(im)2Mg(H2O)2]·Him·3H2O (3) (H2pydc = pyridine-2,6-dicarbolylic acid, im = imidazole) were solvothermally synthesized by reacting H2pydc, Dy(NO3)3·6H2O, MgCl2·6H2O and imidazole at 393 K for 48 h. They were characterized by elemental analysis, IR, TG and XRD. The three compounds are different in structure. Coordination polymer 1 exhibits a three-dimensional network structure with topology symbol of {44.62}3{49.66}2. Complex 2 is a zero-dimensional ionic complex. Coordination polymer 3 displays a one-dimensional chain structure. The solid-state luminescence properties for 1–3 were determined. They all show characteristic emission spectra of Dy(III) ions.
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