Fritz Vögtle - Böcker

with contributions by numerous experts

With contributions by numerous experts

with contributions by numerous experts

Dendrimers stand within the focus of quite an interdisciplinary area of research: Metallodendrimers bring inorganic chemistry into play. Organic synthesis c- tributes much to the preparation of dendrimers, which are then studied by various physicochemical methods such as small angle neutron scattering, photochemistry, and many others. The relation to macromolecules is straig- forward, but their routine use in biochemistry, e. g. , as gene transfection vectors may be less obvious. Al1 these different aspects have been combined in the Topics tetralogy in order to provide an overview as broad as possible in this fascinating field of chemistry. The fourth and final issue in the series starts with a chapter by Chow on the synthesis of dendritic oligoethers, which represent polypodands soluble in many solvents. Two contributions deal with dendrimers based on the "le- than-covalent" bond. While metal coordination as described in the review by Reinhoudt still employs rather strong bonds with bond energies close to co- lent bonds, Zimmerman's overview comprises dendrimers that self-assemble via weak forces such as hydrogen bonding.Biologic activity is one of the major topics in Lindhorst's overview of glycodendrimers, which have become a useful tool for the study of carbohydrate-protein interactions and multivalency. The article by Hirsch on fullerenes containing dendrimers provides extensive inf- mation on their properties as new materials. Finally, function again is a major topic, when catalysis (van Koten) is achieved using dendrimers.

Dendrimers are a class of highly branched molecules that combine the properties of polymers and small discrete molecules. One classified among the exotic molecules of chemistry, dendrimers have attracted considerable attention in recent years, as their unique host/guest properties and their capability of being functionalized in the periphery as well in the core have led to new materials with a great potential for applications. This volume presents the state of art in this blossoming area, written by pioneers in the fields. Covering the synthetic, supramolecular, stereochemical, host/guest and polymer chemistry of dendritic and hyperbranched molecules, this volume explains both theoretical and practical aspects, including chirality reactivity, mechanism, material properties and biological relevance.

The second volume on dendrimers is again written by pioneers in the field. Their contributions illuminate the aspects of dendrimers mentioned in the subtitle, and also touch on areas beyond chemistry, namely material sciences as well as biological, medicinal, analytical, and nano aspects.

Following the first two volumes "Dendrimers" (TCC vol. 197) and "Dendrimers II" (TCC vol. 210), the third volume dealing with this topic is now appearing in print (the "tetralogy" on dendrimers will soon be completed with the fourth volume). The present volume comprises a collection of up-to-date reviews written by renowned pioneers of research in the dendrimer field, three of whom lectured at the 1. International Dendrimer Symposium (IDS-1 1999) in Frankfurt. A focus of this volume is the variety of material properties of soft and shape-persistent dendrimers. As its predecessors did, this volume breaks through the frontiers to neighboring disciplines and, in an interdisciplinary approach, addresses topics such as polydisperse, hyperbranched macromolecules (dendritic polymers), the analysis of shape and density by small-angle scattering techniques, finely dispersed metals (dendrimers as catalysts), and nanotechnology close to potential applications.

with contributions by numerous experts

With contributions by numerous experts

with contributions by numerous experts

Dendrimers stand within the focus of quite an interdisciplinary area of research: Metallodendrimers bring inorganic chemistry into play. Organic synthesis c- tributes much to the preparation of dendrimers, which are then studied by various physicochemical methods such as small angle neutron scattering, photochemistry, and many others. The relation to macromolecules is straig- forward, but their routine use in biochemistry, e. g. , as gene transfection vectors may be less obvious. Al1 these different aspects have been combined in the Topics tetralogy in order to provide an overview as broad as possible in this fascinating field of chemistry. The fourth and final issue in the series starts with a chapter by Chow on the synthesis of dendritic oligoethers, which represent polypodands soluble in many solvents. Two contributions deal with dendrimers based on the "le- than-covalent" bond. While metal coordination as described in the review by Reinhoudt still employs rather strong bonds with bond energies close to co- lent bonds, Zimmerman's overview comprises dendrimers that self-assemble via weak forces such as hydrogen bonding.Biologic activity is one of the major topics in Lindhorst's overview of glycodendrimers, which have become a useful tool for the study of carbohydrate-protein interactions and multivalency. The article by Hirsch on fullerenes containing dendrimers provides extensive inf- mation on their properties as new materials. Finally, function again is a major topic, when catalysis (van Koten) is achieved using dendrimers.

Dendrimers are a class of highly branched molecules that combine the properties of polymers and small discrete molecules. One classified among the exotic molecules of chemistry, dendrimers have attracted considerable attention in recent years, as their unique host/guest properties and their capability of being functionalized in the periphery as well in the core have led to new materials with a great potential for applications. This volume presents the state of art in this blossoming area, written by pioneers in the fields. Covering the synthetic, supramolecular, stereochemical, host/guest and polymer chemistry of dendritic and hyperbranched molecules, this volume explains both theoretical and practical aspects, including chirality reactivity, mechanism, material properties and biological relevance.

The second volume on dendrimers is again written by pioneers in the field. Their contributions illuminate the aspects of dendrimers mentioned in the subtitle, and also touch on areas beyond chemistry, namely material sciences as well as biological, medicinal, analytical, and nano aspects.

Following the first two volumes "Dendrimers" (TCC vol. 197) and "Dendrimers II" (TCC vol. 210), the third volume dealing with this topic is now appearing in print (the "tetralogy" on dendrimers will soon be completed with the fourth volume). The present volume comprises a collection of up-to-date reviews written by renowned pioneers of research in the dendrimer field, three of whom lectured at the 1. International Dendrimer Symposium (IDS-1 1999) in Frankfurt. A focus of this volume is the variety of material properties of soft and shape-persistent dendrimers. As its predecessors did, this volume breaks through the frontiers to neighboring disciplines and, in an interdisciplinary approach, addresses topics such as polydisperse, hyperbranched macromolecules (dendritic polymers), the analysis of shape and density by small-angle scattering techniques, finely dispersed metals (dendrimers as catalysts), and nanotechnology close to potential applications.

In this exciting and rapid development reflecting book twelve of the participants at the Symposium "From Simple Material Systems to Complex Ones" - "From Information to Structure" give a general view of todays knowledge with respect to multi-, inter- and transdisciplinary research in chemistry and science in general. How to analyse e. g. non-covalent interactions in the case of molecular recognitions or selfreplication, how to build up e. g. clusters and self-assembled molecules or how, in general, a knowledge of simple systems, acquired by the instruments of natural science research can be transferred to (more) complex systems and be utilized to improve our understanding, even of society was discussed by experts on chemical subjects like biochemistry, structure analysis, supramolecular chemistry and cluster formation up to biophysics, social sciences and philosophy.

1. P. Knops, N. Sendhoff, H.-B. Mekelburger, F. Voegtle, Bonn/FRG HighDilution Reactions - New Synthetic Applications 2. A. Ostrowicki, E. Koepp, F. Voegtle, Bonn/FRG The "Cesium Effect": Syntheses of Medio- and Macrocyclic Compounds 3. J. Dohm, F. Voegtle, Bonn/FRG Synthesis of (Strained) Macrocycles by Sulfone Pyrolysis 4. Q. Meng, M. Hesse, Zurich/Switzerland Ring Closure Methods in the Synthesis of Macrocyclic Natural Products 5. J.L. Sessler, A.K. Burrell, Austin, TX/USA Expanded Porphyrins