Water Vapour Line Parameters from Microwave to Medium Infrared PDF Download

Author: J.-M. Flaud
Publisher: Elsevier
ISBN: 1483154319
Category : Science
Languages : en
Pages : 276

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Book Description
Water Vapour Line Parameters from Microwave to Medium Infrared (An Atlas of H2 16O, H2 17O, and H2 18O Line Positions and Intensities Between 0 and 4350cm-1) is the culmination of long-range effort and represents a large amount of analysis and calculations relating to the properties of water molecules. The text is divided into major parts. The first half discusses the theories, and the second half presents the atlas. The atlas provides the position, the intensity, the lower energy level, the rotational and vibrational quantum numbers of the upper and lower levels, and the isotropic species. The book will be of great interest to scientists from various fields, such as chemical physics, molecular physics, and astrophysics.

Author: Pierre-Richard Dahoo
Publisher: John Wiley & Sons
ISBN: 1119579244
Category : Science
Languages : en
Pages : 241

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Book Description
This book is dedicated to the application of the different theoretical models described in Volume 1 to identify the near-, mid- and far-infrared spectra of linear and nonlinear triatomic molecules in gaseous phase or subjected to environmental constraints, useful for the study of environmental sciences, planetology and astrophysics. The Van Vleck contact transformation method, described in Volume 1, is applied in the calculation and analysis of IR transitions between vibration–rotation energy levels. The extended Lakhlifi–Dahoo substitution model is used in the framework of Liouville’s formalism and the line profiles of triatomic molecules and their isotopologues subjected to environmental constraints are calculated by applying the cumulant expansion. The applications presented in this book show how interactions at the molecular level modify the infrared spectra of triatomics trapped in a nano-cage (substitution site of a rare gas matrix, clathrate, fullerene, zeolite) or adsorbed on a surface, and how these interactions may be used to identify the characteristics of the perturbing environment.

Author: Pierre-Richard Dahoo
Publisher: John Wiley & Sons
ISBN: 1786306522
Category : Science
Languages : en
Pages : 322

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Book Description
This book, Volume 4 in the series, is dedicated to the relationship between laboratory spectroscopy, recording ever-more-complex spectra using increasingly powerful instruments benefiting from the latest technology, and the development of observation using instruments that are embedded in mobile probes or nanosatellites. The theoretical models described in Volumes 1, 2 and 3 are used in this volume, applying the cumulant theorem in the mean-field theory framework to interpret the near and mid-infrared spectra of symmetric top molecules, such as ammonia (NH3) and spherical molecules, such as methane (CH4). These molecules can be isolated in their gaseous form or subjected to the environmental constraints of a nano-cage (a substitution site, clathrate, fullerene or zeolite) or surfaces. These methods are not only valuable in the fields of environmental sciences, planetology and astrophysics, but also fit into the framework of data processing and the concept of Big Data.

Author: Pierre-Richard Dahoo
Publisher: John Wiley & Sons
ISBN: 1119824087
Category : Science
Languages : en
Pages : 288

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Book Description
This book is dedicated to the description and application of various different theoretical models to identify the near and mid-infrared spectra of symmetric and spherical top molecules in their gaseous form. Theoretical models based on the use of group theory are applied to rigid and non-rigid molecules, characterized by the phenomenon of tunneling and large amplitude motions. The calculation of vibration-rotation energy levels and the analysis of infrared transitions are applied to molecules of ammonia (NH3) and methane (CH4). The applications show how interactions at the molecular scale modify the near and mid-infrared spectra of isolated molecules, under the influence of the pressure of a nano-cage (the substitution site of a rare gas matrix, clathrate, fullerene or zeolite) or a surface, and allow us to identify the characteristics of the perturbing environment. This book provides valuable support for teachers and researchers but is also intended for engineering students, working research engineers and MasterÂs and doctorate students.

Author: Du?an Papou?ek
Publisher: World Scientific
ISBN: 9789810216351
Category : Science
Languages : en
Pages : 578

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Book Description
The book reviews the results of vibration-rotational spectroscopy of molecules obtained recently by combining modern computational methods of quantum chemistry with the new techniques of high-resolution rotational and vibration-rotational spectroscopy. It shows for example that the tunneling vibration-rotational spectroscopy of the van der Waals complexes provides a new look at intermolecular forces while the high precision and sensitivity of the submillimeter-wave and Fourier transform microwave spectroscopy make it possible to study complex rotational spectra of molecules in excited vibrational states. New results of high level ab initio quantum chemical computations of vibrational and rotational energy levels and dipole moment functions of unusual molecules will be discussed together with the recent discovery of clustering of energy levels in asymmetric tops. Group theoretical analysis of floppy molecules, especially the tunneling effects in nonrigid molecules, will also be discussed.

Author:
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages : 474

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Book Description

Author: Jean Demaison
Publisher: CRC Press
ISBN: 1439811350
Category : Science
Languages : en
Pages : 290

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Book Description
Molecular structure is the most basic information about a substance, determining most of its properties. Determination of accurate structures is hampered in that every method applies its own definition of "structure" and thus results from different sources can yield significantly different results. Sophisticated protocols exist to account for these

Author: Francis M. Mirabella
Publisher: John Wiley & Sons
ISBN: 9780471123590
Category : Science
Languages : en
Pages : 432

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Book Description
Dieses praxisorientierte Handbuch ist besonders für Neulinge auf dem Gebiet der Molekülspektroskopie gedacht. Es vermittelt das notwendige Grundwissen, um moderne Techniken im Laboralltag anwenden zu können, und zeigt, wie die Resultate geeignet auszuwerten sind. (04/98)

Author: Peter Hess
Publisher: Springer
ISBN: 3540481818
Category : Science
Languages : en
Pages : 588

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Book Description
photoacoustic and Photothermal Phenomena contains reviews and a large numberof selected contributed papers reporting progress in the application of new photoacoustic and photo- thermal techniques in physics, chemistry, biology, medicine and materials science. Theoretical and experimental work is presented on spectroscopy, kinetics and relaxation, trace analysis, mass and heat transport, surfaces and thin films, nondestructive evaluation,ultrasonics and semiconductors.

Author: K.N. Rao
Publisher: Elsevier
ISBN: 0323149324
Category : Science
Languages : en
Pages : 467

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Book Description
Molecular Spectroscopy: Modern Research, Volume III is a collection of papers presented at the 40th Annual Molecular Spectroscopy Symposium, held at the Ohio State University. The contributors of this seven-chapter text cover the significant advances in molecular spectroscopic research and their application in chemistry. Chapters 1 and 2 discuss first the higher-order vibration-rotation interactions in molecules and then present formulas and an insight into the direction being taken in theoretical pursuits. Chapter 3 provides an extensive compilation of published intensity and collision broadening parameters derived from infrared spectra. This chapter also contains a detailed discussion using consistent notation of some of the methods commonly applied to extract such information from laboratory spectra. Chapter 4 examines a variety of laser systems and their application in investigations involving triatomic free radicals and ions, while chapter 5 considers the developments in the microwave spectroscopic studies on nonpolar molecules when their symmetry is reduced by isotopic substitution. Chapter 6 emphasizes the quasi-linear molecular problem to develop an appreciation of the symptoms of quasi-linearity and theoretical treatments thereof. This chapter also examines the increasing role of highly resolved spectra in the interpretation of various large-amplitude motions in molecules. Lastly, Chapter 7 describes the electric multipolar moments of hydrogen and its isotopes. Spectroscopists, chemists, and researchers will find this work invaluable.