[Al15(μ3-O)4(μ3-OH)6(μ-OH)14(hpdta)4]3−—A New Al15 Aggregate Which Forms a Supramolecular Zeotype H5hpdta=HOCH2[CH2N(CH2COOH)2]2.

Separate areas of differing polarity in the structure of an inorganic cluster compound are favored by the introduction of organic ligands on the periphery of the aggregate. This has been demonstrated by the synthesis of compounds containing the title anion (see picture for an example).