title: A new type of entanglement involving one-dimensional ribbons of rings catenated to a three-dimensional network in the nanoporous structure of [Co(bix)2(H2O)2](SO4).7H2O [bix = 1,4-bis(imidazol-1-ylmethyl)benzene].
abstract: Co(II) sulfate reacts with the flexible ligand 1,4-bis(imidazol-1-ylmethyl)benzene (bix) to yield the coordination network [Co(bix)2(H2O)2](SO4).7H2O, containing polymeric ribbons of rings which penetrate and catenate a 3D single frame of the CdSO4 topology, to produce an open-channel entangled architecture with nanoporous behaviour.
authors.affiliation: Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Via G. Venezian 21, 20133 Milan, Italy.
authors.forename: Lucia
authors.initials: L
authors.lastname: Carlucci
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Ciani
authors.forename: Davide M
authors.initials: DM
authors.lastname: Proserpio