Acetylene storage performance of [Ni(4,40-bipyridine)2(NCS)2]n, a switching square lattice coordination network†

We report that the previously reported square lattice coordination network [Ni(4,40 -bipyridine)2(NCS)2]n, sql-1-Ni-NCS, undergoes acetylene induced switching between closed (nonporous) and open (porous) phases. The resulting stepped sorption isotherms exhibit temperature controlled steps, consistent high uptake and bench-mark working capacity (185 cm 3 g 1 or 189 cm 3, 1–3.2 bar, 288 K) for acetylene storage.