Syntheses and characterizations of five coordination polymers constructed by 3,5-bis(pyridin-3-ylmethoxy)benzoic acid ligand

Five coordination polymers, namely [Cd(L3)2]·H2O (1), [Zn(L3)2] (2), [Co(L3)2] (3), [Ni(L3)2] (4) and [Cu2(L3)2]·3H2O (5), where L3 = 3,5-bis(pyridin-3-ylmethoxy)benzoic acid, have been synthesized under hydrothermal conditions. Their structures have been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra, and thermogravimetric (TG) analyses. Compound 1 is a binodal (3,4)-connected net with (63)(66) topology. Compounds 2–4 are isostructural and described by the uninodal (4,4)-connected net with (44 · 62) Schläfli symbol. The structure of 5 is a 2D binodal (6,3) net. In addition, the luminescent properties of compounds 1 and 2 have been studied in the solid state at room temperature.

Graphical abstractFive coordination polymers, [Cd(L3)2]·H2O (1), [Zn(L3)2] (2), [Co(L3)2] (3), [Ni(L3)2] (4) and [Cu2(L3)2]·3H2O (5), where L3 = 3,5-bis(pyridin-3-ylmethoxy)benzoic acid, have been synthesized under hydrothermal conditions. 1 is a (3,4)-connected net with (63)(66) topology. 2–4 are isostructural and described by the (44 · 62) topology. The structure of 5 is a 2D binodal (6,3) net.Figure optionsDownload full-size imageDownload as PowerPoint slide