A 3D metal-organic network, Cu2(glutarate)2(4,4′-bipyridine), that exhibits single-crystal to single-crystal dehydration and rehydrationElectronic supplementary information (ESI) available: experimental details, IR, TGA and XRPD of all compounds. See http://www.rsc.org/suppdata/cc/b3/b301219k/. | Synapse