Cover Picture Single-Crystalline Molecular Flasks Chemical Transformation with Bulky Reagents in the Pores of Porous Coordination Networks (Angew. Chem. Int. Ed. 422008)код для вставкиСкачать
D 3461 International Edition www.angewandte.org 2008–47/42 Gel Materials A. R. Hirst, D. K. Smith et al. Chemical Geometry S. T. Hyde et al. Mass Spectrometry K.-O. Greulich Quantum Computing R. E. P. Winpenny ACIEFS 47 (42) 7967–8132 (2008) · ISSN 1433–7851 · Vol. 47 · No. 42 Cover Picture Takehide Kawamichi, Tomoki Kodama, Masaki Kawano,* and Makoto Fujita* 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. Crystal Geometry 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. Gel Materials 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 lowmolecular-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.