Soft 2D Layer Porous Coordination Polymers with 1,2-Di(4-pyridyl)ethane

Porous coordination polymer compounds consisting of Zn[2+], 1, 2-di(4-pyridyl)ethane, and dicarboxylates were synthesised and their crystal structures were determined. These are doubly interpenetrated 2D layer structures, and the flexibility of porous structures is dependent on the substituent group of the dicarboxylate. From gas adsorption studies, distinct adsorption isotherms were observed for CO2, CH4, C2H4, and C2H6 at 195 K and 273 K, respectively