Study of Clusters Using Negative Ion Photodetachment Spectroscopy PDF Download

Author: Yeuxing Zhao
Publisher:
ISBN:
Category :
Languages : en
Pages : 550

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

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Author: M.A. Duncan
Publisher: Elsevier
ISBN: 0080545076
Category : Science
Languages : en
Pages : 249

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Spectroscopy and Structure

Author: Theofanis N. Kitsopoulos
Publisher:
ISBN:
Category :
Languages : en
Pages : 378

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Author: Jorg Fink
Publisher: World Scientific
ISBN: 9814545619
Category :
Languages : en
Pages : 570

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Book Description
This volume is the latest of the “Kirchberg-Proceedings”. The previous 11 International Winterschools on Electronic Properties of Novel Materials, all held in Kirchberg, Austria, were devoted to conducting polymers, high temperature superconductors, fullerenes, and carbon nanotubes. Fullerenes and nanotubes are still in the center of interest, but the topic of the school and the proceedings is molecular nanostructures in general. The organizers have attempted to treat carbon nanostructures as a special case of molecular nanostructures, which also include silicon clusters, gold clusters, vanadium oxide tubes, and many others. The Winterschool provides a platform for reviewing and discussing new developments in the field of molecular nanostructures and their applications. Materials discussed include fullerenes, fullerene-derived structures, carbonaceous nanotubes, non-carbonaceous nanotubes, layer by layer systems, molecular clusters, new phases of carbon, endohedral compounds and related materials. The book aims to give an overview of the current status of fullerenes, carbon-nanotubes and related molecular nanostructures. The majority of the contributions present the latest results of experiments and calculations conducted in the field. However, about a dozen contain some degree of instructional material which even newcomers will benefit from.

Author: P. Jena
Publisher: Springer Science & Business Media
ISBN: 1475703570
Category : Science
Languages : en
Pages : 932

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Recent advances in experimental techniques now enable researchers to produce in a laboratory clusters of atoms of desired composition from any of the elements of the periodic table. This has created a new area of research into novel materials since clusters cannot be regarded either as a "large" molecule or as a fragment of the bulk. Both experimental and theoretical studies are revealing unusual properties that are not ob served in solid state environments. The structures of micro-clusters are found to be significantly distorted from the most symmetric arrangement, some even exhibiting pentagonal symmetry commonly found in icosahedric structures. The unusual stability of certain clusters, now described as "magic number species", shows striking similarities with the nuclear shell structure. The relative stabilities of clusters depend not only on the composition of the clusters but also on their charged states. The studies on spontaneous fragmentation of mUltiply charged clusters, commonly referred to as Coulomb explosion, illustrate the role of electronic bonding mechanisms on stability of clusters. The effect of foreign atoms on geometry and stability of clusters and the interaction of gas atoms with clusters are showing promise for an indepth understanding of chemisorption and catalysis. The magnetic and optical properties are dependent not only on cluster size but also on its geometry. These findings have the potential for aiding industry in the area of micro-electronics and catalysis.

Author: P.J. Reynolds
Publisher: Elsevier
ISBN: 1483297527
Category : Science
Languages : en
Pages : 422

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Book Description
This book attempts to answer why there is so much interest in clusters. Clusters occur on all length scales, and as a result occur in a variety of fields. Clusters are interesting scientifically, but they also have important consequences technologically. The division of the book into three parts roughly separates the field into small, intermediate, and large-scale clusters. Small clusters are the regime of atomic and molecular physics and chemistry. The intermediate regime is the transitional regime, with its characteristics including the onset of bulk-like behavior, growth and aggregation, and the beginning of materials properties. Large-scale clusters reflect more condensed-matter and materials science aspects and it is in this regime that fractals make their most dramatic appearance. This well-integrated and pedagogical overview of the wide field of clusters in which both theoretical and experimental work is covered, will be of interest not only to students, advanced undergraduates and graduate students, but also to researchers in the various subfields surveyed.

Author: K.R. Jennings
Publisher: Springer Science & Business Media
ISBN: 9780792354635
Category : Science
Languages : en
Pages : 520

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Book Description
This book draws together leading workers in the fields of mass spectrometry and gas phase ion chemistry, providing a forum for the exchange of ideas and information. It contains 14 lecture summaries and accounts of seven workshops with contributions from Europe and North America.

Author: S. N. Sahu
Publisher: Nova Publishers
ISBN: 9781594549106
Category : Science
Languages : en
Pages : 496

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Nano-Scale Materials - From Science to Technology

Author: J. P. Maier
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 508

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Book Description
Rapid and impressive advances have been made in recent years in the spectroscopy and structure of ion and ionic clusters. This new multi-author volume provides an up-to-date and in-depth coverage of the progress made, the present knowledge, and the state-of-the art of the field. The first chapter deals with the developments and application of the Coulomb explosion technique for the determination of the geometric structure of polyatomic cations. This is followed by a review of the structural information obtained by microwave techniques on cations and of their radioastronomical studies. Of the next three chapters, two deal with theoretical approaches to predict spectroscopic data on ions, and the third deals with the experimental measurements using infrared laser methods. The next chapter covers progress in the area of high resolution photodetachment studies on anions using laser-ion beam methods. The techniques and results described in the following chapter are concerned with the investigations of open-shell cations by means of their electronic transitions. The latter chapters focus on the study of ionic clusters and complexes.