A Cobalt Aluminophosphate with Encapsulated Ethylenediamine: Co_0.65Al_0.35PO₄.0.5NH_2.65CH₂CH₂NH_2.65

The title compound, cobalt aluminium phosphate 0.5-ethylenediamine, is a further example of the partial replacement of aluminium by cobalt during hydrothermal-templated synthesis. The four-connected framework has the zeolite gismondine topology, being similar to the MAPO-43 precursor magnesium aluminophosphate (Al₆,Mg₂)P₈O₃₂.2NC₆H₁₆ [Pluth et al. (1989). J. Am. Chem. Soc. 111, 1692-1698]. The structure can be described as an occupancy modulation of an I4₁/a parent structure; the ethylenediamine disorder is modelled successfully in monoclinic space group I2/c.

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