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Author: B.L. Tumanskii Publisher: Springer Science & Business Media ISBN: 0306476347 Category : Science Languages : en Pages : 193
Book Description
The discovery of fullerenes, species belonging to the electronodeficient polyalkenes with weakly conjugated double bonds, has opened novel opportunities for the radical chemistry. Pioneering study in this field was performed by P. J. Krusic, E. Wasserman, P. N. Keizer, J. R. Morton, and K. F. Preston (Science, 1991, 254, 1184). The fullerenyl radical adducts formed via addition of atoms or free radicals to fullerenes have no analogs in organic chemistry. In fact, radicals in which the unpaired electrons are delocalized over the surface of a sphere or ellipsoid have never been studied before. The unusual character of the fullerenyl radicals is also due to the fact that they occupy a sort of intermediate position between the planar and tetrahedral radicals. Thus, the elucidation of the characteristic features of fullerenyl radicals and their reactivity by EPR spectroscopy, and the comparison of the results with those of quantum-chemical studies are of fundamental importance. Isolation of the products from homolytic reactions of fullerenes in bulk amounts opens the door to large-scale preparation of new organic and organoelement derivatives of including biologically active ones. Radical reactions of fullerenes find wide application in the synthesis of fullere- containing polymers with valuable photophysical characteristics. Ferromagnetism of the complex of with tetra(dimethylamino)ethylene found lends impetus to a search of novel methods for preparation of biradicals one unpaired electron of those is located on the fullerene cage while the other retained by the addend.
Author: B.L. Tumanskii Publisher: Springer Science & Business Media ISBN: 0306476347 Category : Science Languages : en Pages : 193
Book Description
The discovery of fullerenes, species belonging to the electronodeficient polyalkenes with weakly conjugated double bonds, has opened novel opportunities for the radical chemistry. Pioneering study in this field was performed by P. J. Krusic, E. Wasserman, P. N. Keizer, J. R. Morton, and K. F. Preston (Science, 1991, 254, 1184). The fullerenyl radical adducts formed via addition of atoms or free radicals to fullerenes have no analogs in organic chemistry. In fact, radicals in which the unpaired electrons are delocalized over the surface of a sphere or ellipsoid have never been studied before. The unusual character of the fullerenyl radicals is also due to the fact that they occupy a sort of intermediate position between the planar and tetrahedral radicals. Thus, the elucidation of the characteristic features of fullerenyl radicals and their reactivity by EPR spectroscopy, and the comparison of the results with those of quantum-chemical studies are of fundamental importance. Isolation of the products from homolytic reactions of fullerenes in bulk amounts opens the door to large-scale preparation of new organic and organoelement derivatives of including biologically active ones. Radical reactions of fullerenes find wide application in the synthesis of fullere- containing polymers with valuable photophysical characteristics. Ferromagnetism of the complex of with tetra(dimethylamino)ethylene found lends impetus to a search of novel methods for preparation of biradicals one unpaired electron of those is located on the fullerene cage while the other retained by the addend.
Author: B L Tumanskii Publisher: Springer ISBN: 9789401742733 Category : Languages : en Pages : 212
Book Description
The discovery of fullerenes has opened novel opportunities for radical chemistry. The fullerenyl radical adducts formed via addition of atoms or free radicals to fullerenes have no analogs in organic chemistry. Thus, the elucidation of the characteristic features of fullerenyl radicals and their reactivity by EPR spectroscopy is of fundamental importance. Isolation of the products from homolytic reactions of fullerenes in bulk amounts opens the door to large-scale preparation of new organic and organoelement derivatives of C60, including biologically active ones. Radical reactions of fullerenes find wide application in the synthesis of fullerene-containing polymers with valuable photophysical characteristics. Ferromagnetism of the complex of C60 with tetra(dimethylamino)ethylene lends impetus to a search for novel methods for preparation of biradicals, with one unpaired electron located on the fullerene cage and the other retained by the addend. This book covers the results of studies on homolytic reactions of fullerenes, the structures and reactivities of fullerenyl radicals performed by EPR, quantum-chemical, and other methods. Examples of the application of radical reactions of fullerenes in the synthesis and typical methods for their investigation are given. This book is intended for researchers working in chemistry of homolytic reactions as well as for fullerene scientists.
Author: Marina A. Petrukhina Publisher: John Wiley & Sons ISBN: 9781118011256 Category : Science Languages : en Pages : 432
Book Description
This book is the first of its kind to reflect upon the intense and rapidly growing interest in open geodesic polyaromatic molecules, specifically focusing on their synthesis and reactivity in metal binding reactions. The book broadly covers all aspects related to the fullerene fragment chemistry: current synthetic techniques, description of the available members of this new family (which has grown to more than two dozens members, with none being available commercially), molecular geometry and trends in the solid state packing, as well as extensions into physical properties and new buckybowl-based molecules and materials. It covers fundamental research related to a new class of hydrocarbons, namely open geodesic polyarenes that map onto the surfaces of fullerenes (and referred to as fullerene fragments or buckybowls.
Author: Roger Taylor Publisher: World Scientific ISBN: 9814500283 Category : Technology & Engineering Languages : en Pages : 288
Book Description
The closed-cage carbon molecules known as fullerenes provide an entirely new branch of chemistry, materials science, and physics. Fullerene research is now engaging the frenetic attention of thousands of scientists. Initially, the chemistry was relatively slow to develop due to the low availability of material, and the need for state-of-the-art instrumentation for product analysis. This research area is now very definitely up-and-running, and will soon become the main focus of attention in the fullerene field. The number of published papers already runs into hundreds, and the main features of fullerene reactivity have been established. This book describes all of the known types of reactions as well as the means of production, the purification, and the properties of fullerenes.
Author: Andreas Hirsch Publisher: John Wiley & Sons ISBN: 3527605940 Category : Science Languages : en Pages : 440
Book Description
In this handbook, the leading experts in the field presents important and fundamental aspects of the organic and organometallic chemistry of fullerenes. Naturally they also cover the applications in material and medicinal science for these fascinating molecules. Completely self-contained, the book is logically arranged such that information is easy to retrieve, and the style lends itself to effortless reading and to learning more about the chemical properties of this family of molecules. A definitive "must" for everyone working in this ever-expanding sphere.
Author: Warren C.W. Chan Publisher: Springer Science & Business Media ISBN: 0387767134 Category : Medical Languages : en Pages : 223
Book Description
This edited book highlights the central players in the Bionanotechnology field - which are the nanostructures and biomolecules. It provides broad examples of current developments in Bionanotechnology research and is an excellent introduction to the field. The book describes how nanostructures are synthesized and details the wide variety of nanostructures available for biological research and applications. Examples of the unique properties of nanostructures are provided along with the current applications of these nanostructures in biology and medicine. The final chapters of the book describe the toxicity of nanostructures.
Author: Franco Cataldo Publisher: Springer Science & Business Media ISBN: 140206845X Category : Science Languages : en Pages : 411
Book Description
Fullerenes and nanotubes are two classes of carbon structures or allotropes, which were discovered about 17 years ago. Since that time, many chemical derivatives have been synthesized using fullerenes and nanotubes as building blocks. Particularly promising was the theory that the chemical properties of fullerenes, and certain derivatives, made them likely candidates for anticancer drugs, inhibitors of viruses such as HIV, or even as anti-bacterials. Their cyctotoxicity can also be controlled by specific circumstances. In addition, the funtionalization of nanotubes has not only produced relatively simple derivatives, but also complex hybrids with biological macromolecules, which show unique supramolecular architecture and which are promising in many medical applications. The application of fullerenes and nanotubes in medicine is at the frontier of our knowledge, thus the work in this field represents the basis for future novel developments.
Author: Mihai Putz Publisher: CRC Press ISBN: 0429665873 Category : Science Languages : en Pages : 575
Book Description
New Frontiers in Nanochemistry: Concepts, Theories, and Trends, Volume 2: Topological Nanochemistry is the second of the new three-volume set that explains and explores the important basic and advanced modern concepts in multidisciplinary chemistry. Under the broad expertise of the editor, this second volume explores the rich research areas of nanochemistry with a specific focus on the design and control of nanotechnology by structural and reactive topology. The objective of this particular volume is to emphasize the application of nanochemistry. With 46 entries from eminent international scientists and scholars, the content in this volume spans concepts from A-to-Z—from entries on the atom-bond connectivity index to the Zagreb indices, from connectivity to vapor phase epitaxy, and from fullerenes to topological reactivity—and much more. The definitions within the text are accompanied by brief but comprehensive explicative essays as well as figures, tables, etc., providing a holistic understanding of the concepts presented.
Author: B.L. Tumanskii
Author: B.L. Tumanskii
Author: B L Tumanskii
Author: Marina A. Petrukhina
Author: Roger Taylor
Author: Andreas Hirsch
Author: Warren C.W. Chan
Author: Andreas Hirsch (Dr. rer. nat.)
Author: Franco Cataldo
Author: Mihai Putz
Author: Prashant V. Kamat