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Cover Picture: Mesostructured Prussian Blue Analogues (Angew. Chem. Int. Ed. 3/2008)



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Mesostructured Prussian blue analogues have been prepared by ligand-assisted templating in formamide. These materials, reported by M. MacLachlan et al. on page 511 ff., contain cyanide-linked metal centers organized around an alkyl pyrazinium template with lamellar, hexagonal, or cubic periodicity. The cover picture shows a synthesis of these compounds against a background painting dating from the early 1800s showing two chemists making Prussian blue, the oldest-known coordination complex. (Graphic by Elizabeth Varty; background image courtesy of Wisconsin Academy of Sciences, Arts and Letters.)