Gas Adsorption and Luminescent Properties of a Porous pcu-Type Zn(II) Coordination Polymer

A new Zn(II) compound, namely {Zn2(tdc)2(pi)}n (1 H2tdc = 2,5-thiophenedicarboxylic acid, pi = piperazine), has been synthesized via the solvothermal reactions of Zn(NO3)2·6H2O, H2tdc and pi. Single-crystal X-ray analysis reveals that compound 1 crystallizes in orthorhombic Pnma space group with cell parameters a = 20.734(6), b = 20.994(6), c = 18.539(6), and β = 90. The title compound features a three-dimensional (3D) pillar-layered framework. The gas adsorption and luminescent properties of 1 were investigated in the solid state at room temperature.