A cobalt aluminophosphate with encapsulated ethylenediamine: Co0.65Al0.35PO4.0.5NH(2.65)CH(2)CH(2)NH(2.65)

The title compound, cobalt aluminium phosphate 0.5-ethylenediamine, is a fu rther example of the partial replacement of aluminium by cobalt during hydr othermal-templated synthesis. The four-connected framework has the zeolite gismondine topology, being similar to the MAPO-43 precursor magnesium alumi nophosphate (Al-6, Mg-2)P8O32.2NC(6)H(16) [Pluth et al. (1989). J. Am. Chem . Sec. 111, 1692-1698]. The structure can be described as an occupancy modu lation of an I4(1)/a parent structure; the ethylenediamine disorder is mode lled successfully in monoclinic space group I2/c.