Two metal-organic frameworks based on a flexible dithioether spacer with luminescence and sensing properties

Abstract Two isostructural metal-organic frameworks, [M 2 (4-bpytm)(bdc) 2 ] [M = Zn (1), Cu (2)] (4-bpytm = bis(4-pyridylthio)methane, bdc = terephthalic acid), were synthesized under hydrothermal reactions. Single-crystal X-ray diffraction analyses have been applied to determine their structures. Furthermore, they are characterized by IR, TG, PXRD, element analysis and PL spectra. Both 1 and 2 showed 3-fold interpenetrated 6-connected pcu topologies based on bimetallic tetracarboxylate units with one-dimensional channels. The luminescence properties of 1 are investigated systematically due to its one dimensional channels. The results show that 1 has the ability to sense explosives and inorganic ions.