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Cover Picture A Molybdenum Crown Cluster Forms Discrete InorganicЦOrganic Nanocomposites with Metalloporphyrins (Angew. Chem. Int. Ed. 462004)

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Cover Picture
Akihiko Tsuda,* Eri Hirahara, Yeong-Sang Kim, Hiroyuki Tanaka,
Tomoji Kawai,* and Takuzo Aida*
A generous host describes the fully inorganic doughnut-shaped polyoxometalate
crown cluster illustrated in the cover picture which has a 2.3-nm-wide and 1.3-nmdeep nanoscopic cavity and serves as a novel host for three metalloporphyrin
molecules that contain 3- or 4-aminophenyl groups. A. Tsuda, T. Kawai, T. Aida, and
co-workers describe in their Communication on page 6327 ff. how this new organic/
inorganic hybrid complex forms through multiple hydrogen-bonding interactions.
Intermetalloid Clusters
T. F. F'ssler and S. D. Hoffmann describe in their Minireview on page 6242 ff. the
formation of large, endohedral clusters (e.g. [Pt@Pb12]2 ) in the context of fullerenes
and fullerides.
Microwave Chemistry
Heating reactions with microwaves offers a noteworthy alternative to conventional
heating methods. In his Review on page 6250 ff., C. O. Kappe highlights recent
applications of this procedure in organic synthesis.
Nanoporous Materials
In their Communications on pages 6285, 6290, and 6296 ff., C. Serre, C. MellotDraznieks, G. F;rey, and co-workers demonstrate a solvothermal route involving
metal(iii) trimeric secondary building units and how the crystal structures of hybrid
organic–inorganic structures can be predicted.
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forma, crown, nanocomposites, metalloporphyrins, int, discrete, inorganicцorganic, cover, angel, clusters, chem, 462004, picture, molybdenum
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