The Electronic Transitions Of Molecular Oxygen

Author : Mikkel Bregnhøj
Publisher : Springer
Page : 151 pages
File Size : 42,6 Mb
Release : 2018-12-15
Category : Science
ISBN : 9783030031831

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The Electronic Transitions of Molecular Oxygen by Mikkel Bregnhøj Pdf

This book presents the fundamentals and the state of the art of the photophysics of molecular oxygen. The author examines optical transitions between the lowest-lying electronic states in molecular oxygen and how these transitions respond to perturbation, either from an organic molecule or from the plasmon field of a metal nanoparticle. We live on a planet filled with light and oxygen. The interaction between these two components forms the basis of excited state chemistry spanning the fields of synthetic organic chemistry, materials chemistry, molecular biology, and photodynamic treatment of cancer. Still, the fundamental ways in which oxygen is affected by light is an active subject of research and is continually being developed and rationalized. In this book, readers will learn that singlet oxygen, the excited state of oxygen that exhibits unique chemical reactivity, can be selectively made via direct optical excitation of oxygen in a sensitizer-free system. Readers will also discover that this approach can perturb living cells differently depending on the singlet oxygen “dose”.

Author : George Samuel Hurst
Publisher : Unknown
Page : 134 pages
File Size : 51,7 Mb
Release : 1959
Category : Electrons
ISBN : UOM:39015077313644

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Capture of Electrons in Molecular Oxygen by George Samuel Hurst Pdf

Author : Arthur Paul Schaap
Publisher : Hutchinson Ross Publishing Company
Page : 440 pages
File Size : 45,7 Mb
Release : 1976
Category : Active oxygen
ISBN : UCSD:31822012159752

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Singlet Molecular Oxygen by Arthur Paul Schaap Pdf

Author : Gerhard Betz,Peter Varga
Publisher : Springer Science & Business Media
Page : 401 pages
File Size : 42,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642841453

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Desorption Induced by Electronic Transitions DIET IV by Gerhard Betz,Peter Varga Pdf

This book is the latest to appear in a series documenting the progress of this exciting field in surface science. It presents recent results and reviews of the rapidly growing field of interaction of particles and lasers with solid surfaces leading to excitation, ionisation and desorption. The main emphasis is on the microscopic understanding of DIET, especially electron- and ion-induced desorption of adsorbed layers, emission from insulators, laser-induced desorption and ablation, photophysics and photochemistry. Applications ranging from laser ablation for medical purposes to DIET in high-temperature superconductors are also described.

Author : M.-I. Baraton
Publisher : Springer Science & Business Media
Page : 501 pages
File Size : 50,9 Mb
Release : 2008-11-25
Category : Technology & Engineering
ISBN : 9781402090097

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Sensors for Environment, Health and Security by M.-I. Baraton Pdf

The NATO Advanced Study Institute on “Sensors for Environment, Health and Security: Advanced Materials and Technology” was held in Vichy (France) on September 16–27, 2007 where more than 65 participants, ranging from Ph. D. students to experienced senior scientists, met and exchanged ideas and know-how in a friendly atmosphere. The present book intends to cover the main topics of this NATO ASI through 32 chapters distributed over two parts (Part I: “Materials and Technologies” and Part II: “Applications to Environment, Health and Security”). The scientific programme of the NATO ASI consisted in 28 1-hour lectures given by 14 invited lecturers, 5 additional 1-hour lectures given by seminar speakers, 22 oral presentations by selected ASI participants and a poster session. The programme was divided into four sessions: (1) Advanced materials and technologies; (2) Sensors for environment; (3) Sensors for health; (4) Sensors for security. During the “Advanced Materials and Technologies” session (Part I of the present book), the lectures were dedicated to critical analyses of current methods for the synthesis of materials, nanomaterials (nanoparticles, nanowires, nanotubes, ...) and nanocomposites to be used for the fabrication of sensing devices, mainly semiconductor sensors. Among the synthesis methods, chemical (sol-gel, etc. ) and physical methods (laser deposition, DC magnetron sputtering, etc. ) were discussed. Several lectures addressed characterization techniques and it was concluded that the physical and chemical control of the materials/nanomaterials, including surface chemistry, remains a key issue for the reproducibility of the final device.

Author : Vladislav Yu Khomich,Anatoly I. Semenov,Nicolay N. Shefov
Publisher : Springer Science & Business Media
Page : 749 pages
File Size : 51,8 Mb
Release : 2008-03-06
Category : Science
ISBN : 9783540758334

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Airglow as an Indicator of Upper Atmospheric Structure and Dynamics by Vladislav Yu Khomich,Anatoly I. Semenov,Nicolay N. Shefov Pdf

The book summarizes international progress over the last few decades in upper atmosphere airglow research. Measurement methods, theoretical concepts and empirical models of a wide spectrum of upper atmospheric emissions and their variability are considered. The book contains a detailed bibliography of studies related to the upper atmosphere airglow. Readers will also benefit from a lot of useful information on emission characteristics and its formation processes found the book.

Author : Max Diem
Publisher : John Wiley & Sons
Page : 290 pages
File Size : 49,5 Mb
Release : 2021-04-14
Category : Science
ISBN : 9783527829606

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Quantum Mechanical Foundations of Molecular Spectroscopy by Max Diem Pdf

A concise textbook bridging quantum theory and spectroscopy! Designed as a practical text, Quantum Mechanical Foundations of Molecular Spectroscopy covers the quantum mechanical fundamentals of molecular spectroscopy from the view of a professional spectroscopist, rather than a theoretician. Written by a noted expert on the topic, the book puts the emphasis on the relationship between spectroscopy and quantum mechanics, and provides the background information and derivations of the subjects needed to understand spectroscopy including: stationary energy states, transitions between these states, selection rules, and symmetry. The phenomenal growth of all forms of spectroscopy over the past eight decades has contributed enormously to our understanding of molecular structure and properties. Today spectroscopy covers a broad field including the modern magnetic resonance techniques, non-linear, laser and fiber-based spectroscopy, surface and surface-enhanced spectroscopy, pico- and femtosecond time resolved spectroscopy, and many more. This up-to-date resource discusses several forms of spectroscopy that are used in many fields of science, such as fluorescence, surface spectroscopies, linear and non-linear Raman spectroscopy and spin spectroscopy. This important text: Contains the physics and mathematics needed to understand spectroscopy Explores spectroscopic methods the are widely used in chemistry, biophysics, biology, and materials science Offers a text written by an experienced lecturer and practitioner of spectroscopic methods Includes detailed explanations and worked examples Written for chemistry, biochemistry, material sciences, and physics students, Quantum Mechanical Foundations of Molecular Spectroscopy provides an accessible text for understanding molecular spectroscopy.

Author : Santi Nonell,Cristina Flors
Publisher : Royal Society of Chemistry
Page : 488 pages
File Size : 55,7 Mb
Release : 2016-01-27
Category : Active oxygen
ISBN : 9781782620389

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Singlet Oxygen by Santi Nonell,Cristina Flors Pdf

Meeting the desire for a comprehensive book that collects and curates the vast amount of knowledge gained in the field of singlet oxygen, this title covers the physical, chemical and biological properties of this reactive oxygen species and also its increasingly important applications across chemical, environmental and biomedical areas.The editors have a long and distinguished background in the field of singlet oxygen chemistry and biomedical applications, giving them a unique insight and ensuring the contributions attain the highest scientific level.The book provides an up to date reference resource for both the beginner and experienced researcher and crucially for those working across disciplines such as photochemistry, photobiology and photomedicine.

Author : Anonim
Publisher : Unknown
Page : 908 pages
File Size : 47,8 Mb
Release : 2024-06-30
Category : Science
ISBN : CORNELL:31924057175493

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Technical Abstract Bulletin by Anonim Pdf

Author : Jerzy Leszczynski
Publisher : Springer Science & Business Media
Page : 1451 pages
File Size : 50,7 Mb
Release : 2012-01-13
Category : Science
ISBN : 9789400707115

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Handbook of Computational Chemistry by Jerzy Leszczynski Pdf

The role the Handbook of Computational Chemistry is threefold. It is primarily intended to be used as a guide that navigates the user through the plethora of computational methods currently in use; it explains their limitations and advantages; and it provides various examples of their important and varied applications. This reference work is presented in three volumes. Volume I introduces the different methods used in computational chemistry. Basic assumptions common to the majority of computational methods based on molecular, quantum, or statistical mechanics are outlined and special attention is paid to the limits of their applicability. Volume II portrays the applications of computational methods to model systems and discusses in detail molecular structures, the modelling of various properties of molecules and chemical reactions. Both ground and excited states properties are covered in the gas phase as well as in solution. This volume also describes Nanomaterials and covers topics such as clusters, periodic, and nano systems. Special emphasis is placed on the environmental effects of nanostructures. Volume III is devoted to the important class of Biomolecules. Useful models of biological systems considered by computational chemists are provided and RNA, DNA and proteins are discussed in detail. This volume presents examples of calcualtions of their properties and interactions and reveals the role of solvents in biologically important reactions as well as the structure function relationship of various classes of Biomolecules.

Author : A. Quintanilha
Publisher : Springer Science & Business Media
Page : 233 pages
File Size : 49,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781475704174

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Reactive Oxygen Species in Chemistry, Biology, and Medicine by A. Quintanilha Pdf

A NATO Advanced Study Institute on "Oxygen Radicals in Biological Systems: Recent Progress and New Methods of Study" was held in Braga, Portugal between Sep tember 1 and September 14, 1985, in order to consider the basic chemistry and biochem istry of activated oxygen (both radical and non-radical species) and their effect in biolog ical systems. This book summarizes the main lectures given at this meeting. While there is no attempt to cover all the major topics in the expanding subject of oxidative mechanisms in biology, an effort has been made to provide overviews on some key aspects of this field. The authors have attempted to convey a clear picture of both what is known and what remains unclear in their respective subjects. Not only are some of the techniques used for detecting activated oxygen species described, but also their strengths and limi tations. The chemistry of many of these species is discussed and the biological and/or pathological implications are carefully reviewed. The medical and therapeutic aspects of some of the well established pathways of damage and protection are analyzed. It is our hope that the material included in this book might be useful for both researchers and teachers at the graduate level. The success of this meeting was to a large extent due to the tireless committment of Professor Alberto Amaral and Dr. Concei~a:o Rangel; without their outstanding efforts in dealing with all the aspects of the organization, this summer school would not have been possible.

Author : O.M. Belotserkovskii
Publisher : Springer Science & Business Media
Page : 697 pages
File Size : 54,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781461324676

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Rarefied Gas Dynamics by O.M. Belotserkovskii Pdf

100 keV) of neutral hydrogen 7 atoms . The design of the cesium jettarget intended to achieve the 7 following goals : - Supersonic nozzle - cooled skimmer system to increase the fraction 8 of the total nozzle flux Jn which is used as the jettarget flux Jt, 8 = Jt/Jn, from low values 8

Author : Alan R. Burns,Ellen B. Stechel,Dwight R. Jennison
Publisher : Springer Science & Business Media
Page : 344 pages
File Size : 51,7 Mb
Release : 2013-03-07
Category : Science
ISBN : 9783642780806

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Desorption Induced by Electronic Transitions DIET V by Alan R. Burns,Ellen B. Stechel,Dwight R. Jennison Pdf

This volume in the Springer Series on Surface Sciences presents a recent account of advances in the ever-broadening field of electron-and photon-stimulated sur face processes. As in previous volumes, these advances are presented as the proceedings of the International Workshop on Desorption Induced by Electronic Transitions; the fifth workshop (DIET V) was held in Taos, New Mexico, April 1-4, 1992. It will be abundantly clear to the reader that "DIET" is not restricted to desorption, but has for several years included photochemistry, non-thermal surface modification, exciton self-trapping, and many other phenomena that are induced by electron or photon bombardment. However, most stimulated surface processes do share a common physics: initial electronic excitation, localization of the excitation, and conversion of electronic energy into nuclear kinetic energy. It is the rich variation of this theme which makes the field so interesting and fruitful. We have divided the book into eleven parts in order to emphasize the wide range of materials that are examined and to highlight recent experimental and theoretical advances. Naturally, there is considerable overlap between sections, and many papers would be appropriate in more than one part. Part I focuses on perhaps the most active area in the field today: electron attachment. Here the detection and characterization of negative ions formed by attachment of elec trons supplied externally from the vacuum are discussed. In addition, the first observations of negative ions formed by substrate photoelectrons are presented.

Author : Murthy S. Gudipati,Julie Castillo-Rogez
Publisher : Springer Science & Business Media
Page : 658 pages
File Size : 45,9 Mb
Release : 2012-07-28
Category : Science
ISBN : 9781461430766

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The Science of Solar System Ices by Murthy S. Gudipati,Julie Castillo-Rogez Pdf

The role of laboratory research and simulations in advancing our understanding of solar system ices (including satellites, KBOs, comets, and giant planets) is becoming increasingly important. Understanding ice surface radiation processing, particle and radiation penetration depths, surface and subsurface chemistry, morphology, phases, density, conductivity, etc., are only a few examples of the inventory of issues that are being addressed by Earth-based laboratory research. As a response to the growing need for cross-disciplinary dialog and communication in the Planetary Ices science community, this book aims to achieve direct dialog and foster focused collaborations among the observational, modeling, and laboratory research communities.

Author : John G. Burr
Publisher : CRC Press
Page : 629 pages
File Size : 41,5 Mb
Release : 2020-08-18
Category : Science
ISBN : 9781000103137

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Chemi- and Bioluminescence by John G. Burr Pdf

This book focuses on instrumentation of chemi- and bioluminescence and discusses the nature of chemiluminescence as the exothermic oxidation of a substrate organic compound to give an energy-rich product that is luminescent. It describes the applications of chemiluminescence.