Molecular Ions

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Dissociative Recombination of Molecular Ions with Electrons

Author : Steven L. Guberman
Publisher : Springer Science & Business Media
ISBN 13 : 1461500834
Total Pages : 467 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Dissociative Recombination of Molecular Ions with Electrons by : Steven L. Guberman

Download or read book Dissociative Recombination of Molecular Ions with Electrons written by Steven L. Guberman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissociative Recombination of Molecular Ions with Electrons is a comprehensive collection of refereed papers describing the latest developments in dissociative recombination research. The papers are written by the leading researchers in the field. The topics covered include the use of microwave afterglows, merged beams and storage rings to measure rate coefficients and to identify the products and their yields. The molecules studied range in size from the smallest, H2+, to bovine insulin ions. The theoretical papers cover the important role of Rydberg states and the use of wave packets and quantum defect theory to deduce cross sections, rate constants and quantum yields. Several theoretical and experimental papers address the controversial topic of H3+ dissociative recombination and its importance in the interstellar medium. Dissociative recombination studies of other molecular ions in the interstellar medium and in cometary and planetary atmospheres are covered. Ionization is an important competitive process to dissociative recombination and its competition with predissociation and its role in the reverse process of the association of neutral species is presented. Dissociative attachment, in which an electron attaches to a neutral molecule, has many similarities to dissociative recombination. The topics covered include the accurate calculation of electron affinities, attachment to molecules, clusters, and to species absorbed on solid surfaces and electron scattering by a molecular anion.

The Structure of Small Molecules and Ions

Author : Ron Naaman
Publisher : Springer Science & Business Media
ISBN 13 : 1468474243
Total Pages : 338 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis The Structure of Small Molecules and Ions by : Ron Naaman

Download or read book The Structure of Small Molecules and Ions written by Ron Naaman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop on "The structure of small molecules and ions" was held at the Neve-Han guest house, near Jerusalem, Israel on December 13 to 18 in mem ory of the late Professor Itzhak Plesser. Professor Plesser played a central role in the research done both at the Weizmann Institute and at Argonne National Laboratories on the "Coulomb explosion" method. His friends honored his memory by organizing a meeting in which subjects related to Plesser's interests would be discussed. Just a week be fore the conference started we were struck by another tragedy -the death of our graduate student Ms. Hana Kovner, who participated in many of the Coulomb explosion experiments at the Weizmann Institute. We would like to dedicate these proceedings to her memory as well. The goal of the workshop was to bring together chemists and physicists working on different aspects of the structural problems of small molecular en tities. The time seemed appropriate for discussing experimental and theoretical concepts, since in recent years new methods have been introduced, and a large amount of information has been accumulated on systems not studied before, like unstable molecules, ions, van der Waals molecules and clusters. The program of the workshop reflects, we believe, these new developments. The meeting was characterized by intensive discussions in which the weak nesses and strengths of new and of well established concepts were revealed. We hope that it measured up to the high standards Itzhak Plesser maintained all through his scientific life.

Reference Data on Atoms, Molecules, and Ions

Author : A.A. Radzig
Publisher : Springer Science & Business Media
ISBN 13 : 3642820484
Total Pages : 475 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Reference Data on Atoms, Molecules, and Ions by : A.A. Radzig

Download or read book Reference Data on Atoms, Molecules, and Ions written by A.A. Radzig and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference book contains information about the structure and properties of atomic and molecular particles, as well as some of the nuclear parameters. It includes data which can be of use when studying atomic and molecular processes in the physics of gases, chemistry of gases and gas optics, in plasma physics and plasma chemistry, in physical chemistry and radiation chemistry, in geophysics, astrophysics, solid-state physics and a variety of cross-discipli nary fields of science and technology. Our aim was to collect carefully selected and estimated numerical values for a wide circle of microscopic parameters in a relatively "not thick" book. These values are of constant use in the work of practical investigators. In essence, the book represents a substantially revised and extended edi tion of our reference book published in Russian in 1980. Two main reasons made it necessary to rework the material. On the one hand, a great deal of new high-quality data has appeared in the past few years and furthermore we have enlisted many sources of information previously inaccessible to us. On the other hand, we have tried to insert extensive information on new, rapidly progressing branches of physical research, such as multiply charged ions, Rydberg atoms, van der Waals and excimer molecules, complex ions, etc. All this brings us to the very edge of studies being carried out in the field.

Gaseous Molecular Ions

Author : Eugen Illenberger
Publisher : Springer Science & Business Media
ISBN 13 : 3662073838
Total Pages : 357 pages
Book Rating : 4.6/5 (62 download)

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Book Synopsis Gaseous Molecular Ions by : Eugen Illenberger

Download or read book Gaseous Molecular Ions written by Eugen Illenberger and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the matter in our solar system, and, probably, within the whole universe, exists in the form of ionized particles. On the other hand, in our natural environ ment, gaseous matter generally consists of neutral atoms and molecules. Only under certain conditions, such as within the path oflightning or in several technical devices (e. g. gas discharges, rocket engines, etc. ) will some of the atoms and molecules be ionized. It is also believed that the chemistry of the earth's troposphere predomi nantly proceeds via reactions between neutral particles. (The complex system of atmospheric chemistry will be treated in one of the forthcoming volumes to this series. ) Why, then, are ions considered so important that hundreds oflaboratories all over the world (including some of the most prestigious) are involved in research pro grams on ions, covering many different facets, from biochemistry to physics? One may obtain as many different answers as there are research groups busy in this field. There is, however, one simple, common feature which makes it attractive to work with ions: since they carry one or more net elementary charges, they can easily be gui ded, focused or separated by appropriate electric and magnetic fields, and, last but not least, they can easily be detected. Apart from these advantages, which are welcome and appreciated by the researcher, the study of molecular ions can provide insight into very fundamental aspects of the general behavior of molecules.

Molecular Ions

Author : Joseph Berkowitz
Publisher : Springer Science & Business Media
ISBN 13 : 1461336643
Total Pages : 597 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Molecular Ions by : Joseph Berkowitz

Download or read book Molecular Ions written by Joseph Berkowitz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume contains contributions presented at the NATO Advanced Study Institute on Molecular Ions held on the island of Kos, Greece, from September 30 to October 10, 1980. The meeting was attended by some 60 participants from 15 different countries. It was the first meeting devoted exclusively to the topic of molecular ions. Its vitality derived from bringing together experts and students from a wide variety of disciplines, whose studies bear upon the structure of molecular ions. The aim of the meeting was to assemble these scientists, representing many countries in Europe and North America, to discuss the advances and capabilities of the various experimental and theoretical approaches and to point out un solved problems and directions for future research. The format, in volving lecturers and students, served as a tutorial. Molecular ions play an important role in very diverse fields of nature such as reactions in the ionosphere, the processes of forma tion of molecules in dense interstellar clouds, and the magnetohydro dynamics of plasmas used for energy generation. Our understanding of the properties of molecular ions, their electronic and geometric structures, has been developing from a variety of sources, as far removed as tickling ions with radiofre quency radiation and smashing them apart at relativistic energies. Various laser techniques are described, and the queen of structural determination, spectroscopy, is well represented. On the instrumen tal side, older techniques have been perfected and new methods have evolved.

Molecular Ions

Author : Terry Alan Miller
Publisher : North-Holland
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Molecular Ions by : Terry Alan Miller

Download or read book Molecular Ions written by Terry Alan Miller and published by North-Holland. This book was released on 1983 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gaseous Molecular Ions

Author : Eugen Illenberger
Publisher : Springer Science & Business Media
ISBN 13 : 9783798508705
Total Pages : 944 pages
Book Rating : 4.5/5 (87 download)

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Book Synopsis Gaseous Molecular Ions by : Eugen Illenberger

Download or read book Gaseous Molecular Ions written by Eugen Illenberger and published by Springer Science & Business Media. This book was released on 1992-05-26 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the matter in our solar system, and, probably, within the whole universe, exists in the form of ionized particles. On the other hand, in our natural environ ment, gaseous matter generally consists of neutral atoms and molecules. Only under certain conditions, such as within the path oflightning or in several technical devices (e. g. gas discharges, rocket engines, etc. ) will some of the atoms and molecules be ionized. It is also believed that the chemistry of the earth's troposphere predomi nantly proceeds via reactions between neutral particles. (The complex system of atmospheric chemistry will be treated in one of the forthcoming volumes to this series. ) Why, then, are ions considered so important that hundreds oflaboratories all over the world (including some of the most prestigious) are involved in research pro grams on ions, covering many different facets, from biochemistry to physics? One may obtain as many different answers as there are research groups busy in this field. There is, however, one simple, common feature which makes it attractive to work with ions: since they carry one or more net elementary charges, they can easily be gui ded, focused or separated by appropriate electric and magnetic fields, and, last but not least, they can easily be detected. Apart from these advantages, which are welcome and appreciated by the researcher, the study of molecular ions can provide insight into very fundamental aspects of the general behavior of molecules.

Electron-Impact Total Ionization Cross Sections of Molecular Ions

Author : Leon Panetta
Publisher : DIANE Publishing
ISBN 13 : 9781422318843
Total Pages : 8 pages
Book Rating : 4.3/5 (188 download)

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Book Synopsis Electron-Impact Total Ionization Cross Sections of Molecular Ions by : Leon Panetta

Download or read book Electron-Impact Total Ionization Cross Sections of Molecular Ions written by Leon Panetta and published by DIANE Publishing. This book was released on 2012-05 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of the Dissociation Rate of Molecular Ions

Author : Ch Ottinger
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Measurement of the Dissociation Rate of Molecular Ions by : Ch Ottinger

Download or read book Measurement of the Dissociation Rate of Molecular Ions written by Ch Ottinger and published by . This book was released on 1968 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time interval between the ionization of a molecule by electron impact and its dissociation was determined from the kinetic energy of the fragment ions. This technique allows a direct differential sampling of the dissociation rate at various times, in contrast to previous, integral methods. The use of disc-shaped molecular beam of 28 micrometers half-width and a draw-out field of 10,000 V/cm in the ionization region resulted in a minimum measured time interval of 7.4 nonoseconds. The longest times measured were between 5 and 6 microseconds. The time dependence of the decomposition rate was measured for two decompositions in butane, five in heptane, three in benzene, one in CD4 and one in CO2(++), with rather similar results. It was established that the decay is not exponential. All decay curves, plotted semi-logarithmically, were found to have an increasing slope towards shorter times, indicating contributions from a variety of rate constants in agreement with the predictions of the statistical theory of ion decompositions.

"Explosion" of Multicharged Molecular Ions: Chemical Consequences of Inner Shell Vacancies

Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis "Explosion" of Multicharged Molecular Ions: Chemical Consequences of Inner Shell Vacancies by :

Download or read book "Explosion" of Multicharged Molecular Ions: Chemical Consequences of Inner Shell Vacancies written by and published by . This book was released on 1964 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Methods and Mechanisms for Producing Ions from Large Molecules

Author : K.G. Standing
Publisher : Springer Science & Business Media
ISBN 13 : 1468479261
Total Pages : 319 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Methods and Mechanisms for Producing Ions from Large Molecules by : K.G. Standing

Download or read book Methods and Mechanisms for Producing Ions from Large Molecules written by K.G. Standing and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: A NATO Advanced Research Workshop on Methods and Mechanisms for Producing Ions from Large Molecules was held at Minaki Lodge, Minaki, Ontario, Canada, from 24 to 28 June 1990. The workshop was hosted by the time-of-flight group of the Department of Physics at the University of Manitoba, and was attended by 64 invited participants from around the world. Twenty-nine invited talks were given and 19 papers were presented as posters. Of the 48 contributions, 38 are included in these proceedings. The conference was organized to study the rapidly changing field of mass spectrometry of biomolecules. Particle-induced desorption (especially with MeV particles) has been the most effective method of producing molecular ions from biomolecules. An important part of the workshop was devoted to recent developments in this field, particularly to progress in understanding the fundamentals of the desorption process. In this respect, the meeting was similar to previous conferences in Marburg, FRG (1978); Paris, F (1980); Uppsala, S (1981); College Station, USA (1983,1984); Wangerooge, FRG (1986); Orsay, F (1988); Spiekeroog, FRG (1989); and to the IFOS series of meetings at Munster, FRG (1981,1983,1985,1987) and L6vAnger, S (1989). As in the most recent of these meetings, there was some emphasis on new developments, particularly cluster bombardment. A departure from the concentration on particle bombardment processes at this conference was inspired by the dramatic results obtained with two new methods for producing molecular ions from large molecules: matrix-assisted laser desorption and electrospray.

An Introduction to Cold and Ultracold Chemistry

Author : Jesús Pérez Ríos
Publisher : Springer Nature
ISBN 13 : 303055936X
Total Pages : 278 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis An Introduction to Cold and Ultracold Chemistry by : Jesús Pérez Ríos

Download or read book An Introduction to Cold and Ultracold Chemistry written by Jesús Pérez Ríos and published by Springer Nature. This book was released on 2020-11-05 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides advanced undergraduate and graduate students with an overview of the fundamentals of cold and ultracold chemistry. Beginning with definitions of what cold and ultracold temperatures mean in chemistry, the book then takes the student through the essentials of scattering theory (classical and quantum mechanical), light-matter interaction, reaction dynamics and Rydberg physics. The author aims to show the reader the richness of the topic while motivating students to understand the fundamentals of these intriguing reactions and underlying connecting relationships. Including material which was previously only found in specialized review articles, this book provides students working in the fields of ultracold gases, chemical physics and physical chemistry with the tools they need to immerse themselves in the realm of cold and ultracold chemistry. This book opens up the exciting chemical laws which govern chemistry at low temperatures to the next generation of researchers.

Dissociative Recombination of Molecular Ions

Author : Mats Larsson
Publisher : Cambridge University Press
ISBN 13 : 9780521828192
Total Pages : 390 pages
Book Rating : 4.8/5 (281 download)

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Book Synopsis Dissociative Recombination of Molecular Ions by : Mats Larsson

Download or read book Dissociative Recombination of Molecular Ions written by Mats Larsson and published by Cambridge University Press. This book was released on 2008-04-14 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissociative recombination (DR) of molecular ions with electrons is a complex, poorly understood molecular process. Its critical role as a neutralising agent in the Earth's upper atmosphere is now well established and its occurrence in many natural and laboratory-produced plasma has been a strong motivation for studying the event. In this book theoretical concepts, experimental methodology and applications are united, revealing the governing principles behind the gas-phase reaction. The book takes the reader through the intellectual challenges posed, describing in detail dissociation mechanisms, dynamics, diatomic and polyatomic ions and related processes, including dissociative excitation, ion pair formation and photodissociation. With the final chapter dedicated to applications in astrophysics, atmospheric science, plasma physics and fusion research, this is a focused, definitive guide to a fundamental molecular process. The book will appeal to academics within physics, physical chemistry and related sciences.

Molecular Biology of the Cell

Author :
Publisher :
ISBN 13 : 9780815332183
Total Pages : 0 pages
Book Rating : 4.3/5 (321 download)

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Book Synopsis Molecular Biology of the Cell by :

Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Cluster Ions and Van Der Waals Molecules

Author : B.M. Smirnov
Publisher : CRC Press
ISBN 13 : 9782881246975
Total Pages : 296 pages
Book Rating : 4.2/5 (469 download)

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Book Synopsis Cluster Ions and Van Der Waals Molecules by : B.M. Smirnov

Download or read book Cluster Ions and Van Der Waals Molecules written by B.M. Smirnov and published by CRC Press. This book was released on 1992-03-20 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smirnov (plasma chemistry, Institute of High Temperatures, Moscow) presents a comprehensive introduction to cluster ions and Van der Waals molecules for graduates and researchers in chemistry. He discusses the current ideas on the operant physics and chemistry, and reports numerical data on the parameters of the entities and processes involving them. First published in Russian in 1983. Annotation copyrighted by Book News, Inc., Portland, OR

Classical Treatment of Collisions Between Ions and Atoms or Molecules

Author : Francois Frémont
Publisher : Springer Nature
ISBN 13 : 3030894282
Total Pages : 247 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Classical Treatment of Collisions Between Ions and Atoms or Molecules by : Francois Frémont

Download or read book Classical Treatment of Collisions Between Ions and Atoms or Molecules written by Francois Frémont and published by Springer Nature. This book was released on 2021-12-08 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of the twentieth century, many experimental and theoretical works have been devoted to collisions between highly charged ions and atomic and molecular targets. It was realized that quantum mechanics is the only way, a priori, to describe such atomic phenomena. However, since quantum mechanics is very difficult to apply for collision systems with more than two particles, classical methods were very soon introduced and applied to simple collision systems and, subsequently, to more complicated systems. The results obtained by such classical methods were found to be surprisingly good, and classical mechanics is now well established, despite its approximations, as a replacement for or competition with quantum mechanics in many cases. In this book, the author will focus on the development of classical methods for describing collisional and post-collisional processes. The results will be compared with those found using quantum mechanical models, in order to demonstrate the ability of the classical approach to obtain many features and details of collision systems.

Dissociative Recombination of Molecular Ions with Electrons

Author : Steven L. Guberman
Publisher : Springer
ISBN 13 : 9781461349150
Total Pages : 0 pages
Book Rating : 4.3/5 (491 download)

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Book Synopsis Dissociative Recombination of Molecular Ions with Electrons by : Steven L. Guberman

Download or read book Dissociative Recombination of Molecular Ions with Electrons written by Steven L. Guberman and published by Springer. This book was released on 2012-10-13 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dissociative Recombination of Molecular Ions with Electrons is a comprehensive collection of refereed papers describing the latest developments in dissociative recombination research. The papers are written by the leading researchers in the field. The topics covered include the use of microwave afterglows, merged beams and storage rings to measure rate coefficients and to identify the products and their yields. The molecules studied range in size from the smallest, H2+, to bovine insulin ions. The theoretical papers cover the important role of Rydberg states and the use of wave packets and quantum defect theory to deduce cross sections, rate constants and quantum yields. Several theoretical and experimental papers address the controversial topic of H3+ dissociative recombination and its importance in the interstellar medium. Dissociative recombination studies of other molecular ions in the interstellar medium and in cometary and planetary atmospheres are covered. Ionization is an important competitive process to dissociative recombination and its competition with predissociation and its role in the reverse process of the association of neutral species is presented. Dissociative attachment, in which an electron attaches to a neutral molecule, has many similarities to dissociative recombination. The topics covered include the accurate calculation of electron affinities, attachment to molecules, clusters, and to species absorbed on solid surfaces and electron scattering by a molecular anion.