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Cover Picture Crystal Structure and Guest Uptake of a Mesoporous MetalЦOrganic Framework Containing Cages of 3.9 and 4.7dnm in Diameter (Angew. Chem. Int. Ed. 432007)

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Cover Picture
Young Kwan Park, Sang Beom Choi, Hyunuk Kim, Kimoon Kim,
Byoung-Ho Won, Kihang Choi, Jung-Sik Choi, Wha-Seung Ahn,
Nayoun Won, Sungjee Kim, Dong Hyun Jung, Seung-Hoon Choi,
Ghyung-Hwa Kim, Sun-Shin Cha, Young Ho Jhon, Jin Kuk Yang, and
Jaheon Kim*
A metal-organic framework (MOF) with a hierarchical structure has been
synthesized by the assembly of super tetrahedron units of Tb ions and organic
tripodal linkers. The zeolite-like network (shown as stick models in the background)
contains mesocages in which the smaller mesocages with diameters of 3.9 nm are
fused to larger ones of diameter 4.7 nm (represented by space-filling models). The
evacuated framework is robust and can accommodate gases or ferrocene molecules
For more details see the Communication by J. Kim et al. on page 8230 ff.
Molecular Machines
In their Minireview on page 8120 ff., D. M. Guldi et al. discuss how fullerenes are
used as active components in molecular machinery such as rotaxanes, where their
specific electron-acceptor and chromophoric properties can be applied to study and
influence molecular motion.
Fibrillization
I. W. Hamley describes in his Review on page 8128 ff. the self-assembly of peptides
into fibrils, and discusses both the natural amyloid-forming peptides and synthetic
compounds such as peptide fragments, copolymers, and amphiphiles.
Aqueous Silicates
29
Si COSY NMR spectroscopy reveals the beautiful array of aqueous silicate anions
that exist in equilibrium under alkaline conditions. The 48 structures identified by
S. Kinrade and co-workers in their Communication on page 8148 ff. are shown.
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crystals, metalцorganic, cage, guest, int, framework, cover, structure, angel, containing, diameter, mesoporous, chem, uptake, picture, 7dnm, 432007
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