PROBLEM TO BE SOLVED: To provide: a novel porous polymer metal complex and a gas absorbent having excellent properties using the same; and a gas separation device and a gas storage device each configured by housing the gas absorbent having the properties inside.SOLUTION: There are provided a novel porous polymer metal complex represented by the following formula (1) [MXY](1) (in the formula, M is a bivalent transition metal ion, X is a terephthalic acid type first ligand, Y is a bipyridyl type 1 second ligand, any of X and Y contains at least one or more perfluoroalkyl group having 1 to 8 carbon atoms, n represents such a property that a lot of constituent units consisting of [MXY] is aggregated, and the size of n is not specifically limited), the novel porous polymer metal complex having a three-dimensional laminate type network structure formed by the first ligand and the second ligand. There are also provided use of the novel porous polymer metal complex as the gas adsorbent, the gas separation device and
