By Franco Laeri, Ferdi Schüth, Ulrich Simon, Michael Wark
Curiosity in nanoporous crystals as host-guest structures has risen dramatically during the last few years, such that this attention-grabbing category of gear now performs a big function not just in fabric sciences, but in addition in several different disciplines, comparable to natural or supramolecular chemistry. With their distinctive features, nanoporous crystals provide quite a lot of attainable functions: they're used as molecular sieves or membranes in addition to catalytic converters. This paintings offers the first actual evaluation of this fascinating box. Readers will locate every little thing they should find out about those strange fabrics, with all their many attributes:Synthesis of host-guest structures Description of the structural and dynamic points digital and optical features of the fabrics attainable functions. An essential reference for fabrics scientists in addition to for catalytic and inorganic chemists, and all these operating within the box.
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Additional resources for Host-Guest-Systems Based on Nanoporous Crystals
1 Introduction Zeolites and related compounds (zeotypes) can act as organizing and protecting media for organic molecules and metal complexes introduced into their voids [1– 3]. The resulting substances can possess interesting properties if the guest molecules carry a speciﬁc function. Apart from catalytic reactivity, such functions can for instance include that of a chromophore, a luminophore, or a magnetic moment. The speciﬁc properties of zeotype frameworks and the strict spatial organization they impose on the arrangement of the guest species can lead to interesting material properties and possible applications.
8. Wark et al. discuss the arrangement of metal oxide species in the pores of molecular sieves either in mononuclear dispersion or as clusters or nanoparticles. The encapsulation was predominately achieved by post-synthetic treatment using chemical vapor deposition (CVD), ion exchange, and impregnation. The stabilized diﬀerently sized metal oxide species diﬀer drastically in their behavior against reductive gases. The composites can be used for a sensing of gases Synthesis Routes for Functional Composites Based on Nanoporous Materials based on optical detection.
Kruk, M. Jaroniec, Langmuir 2002, 18, 884. ¨ th, Microp. Mesop. U. Ciesla, F. Schu Mater. 1999, 27, 131. M. Antonielli, Angew. Chem. Int. Ed. 2002, 41, 214. A. Ozin, Chem. Comm. 2000, 419. T. Asefa, M. J. Maclachlan, N. Coombs, H. Grondey, M. A. Ozin, J. Am. Chem. Soc. 2001, 123, 8520. J. Lin, Angew. Chem. Int. Ed. 1999, 38, 2730. H. Li, M. M. Yaghi, Nature 1999, 402, 276. 7 1 Guest Functionalized Crystalline Organic/ Inorganic Nanohybrid Materials Peter Behrens*, Christian Panz, Clemens Ku¨hn, Bernd M.
Host-Guest-Systems Based on Nanoporous Crystals by Franco Laeri, Ferdi Schüth, Ulrich Simon, Michael Wark