title: H-bonds superstructures built by aquacomplexes and an azapurine derivative: a case of molecular recognition.
abstract: The crystal structures of six compounds involving the divalent cations of Mn, Zn and Cd, the anionic form of the heterocycle 4,6-dimethyl-1,2,3-triazolo[4,5-d]pyrimidin-5,7-dione (Hdmax) and bipyridyl based spacer ligands are reported. The most important feature of these structures is the presence, in all cases, of a topologically identical 1-D polymeric superstructure (tape), involving tetra- or hexaaqua complex cations and triazolopyrimidine anions, built through hydrogen bonds. Adding these results to others previously published, we may consider these tapes as robust supramolecular synthons where a defined/clear case of molecular recognition between these two moieties takes place.
authors: Departamento de Química Inorgánica, Universidad de Granada, Granada, Spain. quimicarmen@ugr.es
authors: Carmen R
authors: CR
authors: Maldonado
authors: Miguel
authors: M
authors: Quirós
authors: Juan M
authors: JM
authors: Salas