Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: Single-Crystalline Molecular Flasks: Chemical Transformation with Bulky Reagents in the Pores of Porous Coordination Networks (Angew. Chem. Int. Ed. 42/2008)
Porous coordination networks can act as crystalline molecular flasks. As shown in the cover picture, chemical reactions may proceed in these flasks as in solution. M. Kawano, M. Fujita et al. report in their Communication on page 8030 ff. that organic transformations with bulky reagents proceed smoothly within the pores with the reagents diffusing through the network. Unlike solution-state reactions, those within the crystalline flask can be easily analyzed by crystallography.
Also of Interest
The history of gyroid structures is told by S. T. Hyde et al. in their Essay on page 7996 ff. These forms appear in mathematics, as the topological basis for liquid crystal phases and derived mesoporous materials, and in insect pigments.
On page 8002 ff., D. K. Smith, A. R. Hirst et al. review the technological applications of specialized gel materials that are formed with the aid of self-organizing low-molecular-weight gelators.
Nonthermal Corona Discharge
In the Communication on page 8020 ff., Y. Gogotsi, G. Friedman et al. explain how corona discharge at ultrasharp electrode tips can be used for the ultrafast simultaneous detection of multiple dissolved elements in femtoliter volumes of liquid.