A novel 3D hybrid architecture based on (H2O)6 encircling Cu4I4–O–Cu4I4 cluster and hexanuclear Cu6(datrz)6 ring

The reaction of ligand datrz (3,5-diamino-1,2,4-triazole) with CuI in 1:1 ethanol and water mixed solvent under solvothermal condition gives a novel three-dimensional hybrid solid, [(H3O)2(H2O)4][{Cu6(datrz)6}{(Cu4I4)2O}] (1), which consists of unique six-connected dumb-like Cu4I4–O–Cu4I4 clusters and hexanuclear Cu6(datrz)6 rings. Interestingly, the chair-form water hexamer is firstly observed being interpenetrated by the inorganic cluster.