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Book High Resolution Infrared Spectroscopy of Molecular Clusters

Download or read book High Resolution Infrared Spectroscopy of Molecular Clusters written by Glenn Walter Ross Bryant and published by . This book was released on 1989 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Infrared Spectroscopy of Molecular Clusters

Download or read book Infrared Spectroscopy of Molecular Clusters written by Martina H. Havenith and published by Springer. This book was released on 2003-07-01 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to give an introduction to intermolecular forces from an experimental point of view. Within the last 10 years the interest has turned more and more into an understanding of the weak, but important, int- molecular forces. New experimental techniques have been developed which have helped to gain more insight into this interesting topic. This book is intended as an introduction for graduate students who are familiar with the main concepts of n~olecular spectroscopy. Special emphasis will be laid on the theoretical concepts. After a detailed description of experimental techniques, the results for two prototype systems which have been the subject of several studies in the literature within recent years will be presented. Ar-CO is becoming the most extensively studied van der Waals complex, theoretically and experimentally. Nevertheless, this example shows that even though the theory has greatly improved and has helped us to improve our knowledge of intermolecular forces, even for relatively simple cases the theory car1 still fall short of an accurate description. For a long time (NH3)2 was considered as a prototype for hydrogen bo- ing. However, subsequent experimental and theoretical studies have revealed the mysteries of the obtained spectra and proved that our previous concept of hydrogen bonds was just too naive.

Book Infrared Spectroscopy of Molecular Clusters

Download or read book Infrared Spectroscopy of Molecular Clusters written by Martina H. Havenith and published by Springer. This book was released on 2013-10-03 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to give an introduction to intermolecular forces from an experimental point of view. Within the last 10 years the interest has turned more and more into an understanding of the weak, but important, int- molecular forces. New experimental techniques have been developed which have helped to gain more insight into this interesting topic. This book is intended as an introduction for graduate students who are familiar with the main concepts of n~olecular spectroscopy. Special emphasis will be laid on the theoretical concepts. After a detailed description of experimental techniques, the results for two prototype systems which have been the subject of several studies in the literature within recent years will be presented. Ar-CO is becoming the most extensively studied van der Waals complex, theoretically and experimentally. Nevertheless, this example shows that even though the theory has greatly improved and has helped us to improve our knowledge of intermolecular forces, even for relatively simple cases the theory car1 still fall short of an accurate description. For a long time (NH3)2 was considered as a prototype for hydrogen bo- ing. However, subsequent experimental and theoretical studies have revealed the mysteries of the obtained spectra and proved that our previous concept of hydrogen bonds was just too naive.

Book Handbook of High resolution Spectroscopy

Download or read book Handbook of High resolution Spectroscopy written by Martin Quack and published by John Wiley & Sons. This book was released on 2011-09-26 with total page 2236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of High-Resolution Spectroscopy has been considerably extended and even redefined in some areas. Combining the knowledge of spectroscopy, laser technology, chemical computation, and experiments, Handbook of High-Resolution Spectroscopy provides a comprehensive survey of the whole field as it presents itself today, with emphasis on the recent developments. This essential handbook for advanced research students, graduate students, and researchers takes a systematic approach through the range of wavelengths and includes the latest advances in experiment and theory that will help and guide future applications. The first comprehensive survey in high-resolution molecular spectroscopy for over 15 years Brings together the knowledge of spectroscopy, laser technology, chemical computation and experiments Brings the reader up-to-date with the many advances that have been made in recent times Takes the reader through the range of wavelengths, covering all possible techniques such as Microwave Spectroscopy, Infrared Spectroscopy, Raman Spectroscopy, VIS, UV and VUV Combines theoretical, computational and experimental aspects Has numerous applications in a wide range of scientific domains Edited by two leaders in this field Provides an overview of rotational, vibration, electronic and photoelectron spectroscopy Volume 1 - Introduction: Fundamentals of Molecular Spectroscopy Volume 2 - High-Resolution Molecular Spectroscopy: Methods and Results Volume 3 - Special Methods & Applications

Book Low Temperature Molecular Spectroscopy

Download or read book Low Temperature Molecular Spectroscopy written by Rui Fausto and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular spectroscopy has achieved rapid and significant progress in recent years, the low temperature techniques in particular having proved very useful for the study of reactive species, phase transitions, molecular clusters and crystals, superconductors and semiconductors, biochemical systems, astrophysical problems, etc. The widening range of applications has been accompanied by significant improvements in experimental methods, and low temperature molecular spectroscopy has been revealed as the best technique, in many cases, to establish the connection between experiment and theoretical calculations. This, in turn, has led to a rapidly increasing ability to predict molecular spectroscopic properties. The combination of an advanced tutorial standpoint with an emphasis on recent advances and new perspectives in both experimental and theoretical molecular spectroscopy contained in this book offers the reader insight into a wide range of techniques, particular emphasis being given to supersonic jet and matrix isolation techniques, spectroscopy in cryogenic solutions (including liquid noble gases), and in both crystalline and amorphous states. Suitable quantum chemical methods are also considered, as are empirically based force field methods for calculating spectra of large molecular systems. The wide range of topics covered includes: molecular dynamics and reactivity, time-resolved and high-resolution spectroscopy, conformational analysis, hydrogen bonding and solvent effects, structure and dynamics of weakly bound complexes, transition metal and organic photochemistry, spectroscopy of excited states, ab initio prediction of molecular spectra, and biochemical and astrophysical applications.

Book High Resolution Infrared Spectroscopy of Slit jet Cooled Transient Molecules

Download or read book High Resolution Infrared Spectroscopy of Slit jet Cooled Transient Molecules written by Scott Robert Davis and published by . This book was released on 1999 with total page 1332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book High Resolution Infrared Spectroscopy of Transient Molecules Development of Broadband Optical Parametric Oscillators

Download or read book High Resolution Infrared Spectroscopy of Transient Molecules Development of Broadband Optical Parametric Oscillators written by Jürgen Krieg and published by Cuvillier Verlag. This book was released on 2012-02-13 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The infrared spectral region between wavelengths of 2 and 6 µm is of great importance in molecular physics. Molecules with an X-H bond (X being carbon, nitrogen or oxygen) exhibit strong vibrational transitions there, but also linear carbon clusters Cn (n=2,3,...). Many combination bands and overtones of low-energy vibrational modes also occur in this spectral range. Analyses of these spectral features allow - if highly resolved - for example the prediction of pure rotational transitions in the sub-mm wavelength regime, or help understanding the internal dynamics of the molecule. To provide radiation sources with extremely large frequency coverage, two optical parametric oscillator (OPO) systems in the wavelength regions from 2.5 to 4.1 µm and from 4.7 to 5.4 µm have been set up and characterized in this thesis. The OPO system around 5 µm wavelength is the only one in this spectral region used in high-resolution spectroscopy up to now. Both of the OPO systems have been shown to be ideal tools for spectroscopic studies delivering highly accurate transition frequencies of transient molecules, using the following example cases: The rovibrational spectrum of the fundamental cation CH2D+ around 3.2 µm wavelength has been measured with unprecedented spectral resolution and frequency accuracy. The combination of the OPO as radiation source with a cold ion trap to produce and store the ions has been proven to have a high predictive power for pure rotational transition frequencies of CH2D+. Located at around 100 to 200 GHz, these are of great importance in astrophysics. The V3 fundamental vibration of Si2C3 around 5.1 µm wavelength has been measured using the OPO and a newly built jet spectrometer for the production of transient molecules. Molecular parameters have been determined with high precision. An associated hot band originating from the V7 vibrational bending mode has been resolved and analyzed for the first time. The pure carbon clusters C3 and C7 have also been examined. For the first time, a combination band of C3 and an associated hot band were detected around 3.0 µm wavelength in the gas phase. Their analyses yield valuable information about the potential energy surface of C3. Analysis of the V5 mode of C7 delivered further proof of its rigidity, which was put into question by earlier works. Last but not least, a previously unknown associated hot band of C7 has been detected and analyzed.

Book Infrared Laser Spectroscopy of Molecular Ions and Clusters

Download or read book Infrared Laser Spectroscopy of Molecular Ions and Clusters written by Martin Gruebele and published by . This book was released on 1988 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Infrared Spectroscopy of Molecular Clusters

Download or read book Infrared Spectroscopy of Molecular Clusters written by Martina H. Havenith and published by Springer. This book was released on 2002-01-11 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to give an introduction to intermolecular forces from an experimental point of view. Within the last 10 years the interest has turned more and more into an understanding of the weak, but important, int- molecular forces. New experimental techniques have been developed which have helped to gain more insight into this interesting topic. This book is intended as an introduction for graduate students who are familiar with the main concepts of n~olecular spectroscopy. Special emphasis will be laid on the theoretical concepts. After a detailed description of experimental techniques, the results for two prototype systems which have been the subject of several studies in the literature within recent years will be presented. Ar-CO is becoming the most extensively studied van der Waals complex, theoretically and experimentally. Nevertheless, this example shows that even though the theory has greatly improved and has helped us to improve our knowledge of intermolecular forces, even for relatively simple cases the theory car1 still fall short of an accurate description. For a long time (NH3)2 was considered as a prototype for hydrogen bo- ing. However, subsequent experimental and theoretical studies have revealed the mysteries of the obtained spectra and proved that our previous concept of hydrogen bonds was just too naive.

Book Rotational Structure in Molecular Infrared Spectra

Download or read book Rotational Structure in Molecular Infrared Spectra written by Carlo di Lauro and published by Newnes. This book was released on 2013-04-27 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in infrared molecular spectroscopy have resulted in sophisticated theoretical and laboratory methods that are difficult to grasp without a solid understanding of the basic principles and underlying theory of vibration-rotation absorption spectroscopy. Rotational Structure in Molecular Infrared Spectra fills the gap between these recent, complex topics and the most elementary methods in the field of rotational structure in the infrared spectra of gaseous molecules. There is an increasing need for people with the skills and knowledge to interpret vibration-rotation spectra in many scientific disciplines, including applications in atmospheric and planetary research. Consequently, the basic principles of vibration-rotation absorption spectroscopy are addressed for contemporary applications. In addition to covering operational quantum mechanical methods, spherical tensor algebra, and group theoretical methods applied to molecular symmetry, attention is also given to phase conventions and their effects on the values of matrix elements. Designed for researchers and PhD students involved in the interpretation of vibration-rotation spectra, the book intentionally separates basic theoretical arguments (in the appendices), allowing readers who are mainly concerned with applications to skip the principles while at the same time providing a sound theoretical basis for readers who are looking for more foundational information. Reviews basic theory and contemporary methods of vibration rotation absorption spectroscopy, including operational quantum mechanical methods, spherical tensor algebra, and group theoretical methods applied to molecular symmetry Covers sophisticated mathematical topics in simple, easy-to-read language Discusses methods and applications separately from basic theoretical arguments for quick reference

Book Infrared Vibration Rotation Spectroscopy

Download or read book Infrared Vibration Rotation Spectroscopy written by Geoffrey Duxbury and published by John Wiley & Sons. This book was released on 2000-02-03 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an author internationally renowned in the field of molecular spectroscopy, this book provides an up-to-date account of the new experimental and theoretical methods on the high resolution infrared spectroscopy of small molecules. The approach uses a visual approach to spectral analysis, containing large numbers of energy level diagrams and spectra specra to show the progress in identification and line assignment. Covering new and important techniques on laser and Fourier Transform, it also contains both theoretical and experimental chapters. Divided into 3 parts, features covered in the first part include: * Calculations of the vibration-rotation energy levels of rigid and non-rigid molecules * Calculations of the intensities of vibration-rotation transitions * Introduction to linear and non-linear molecular spectroscopy * Use of interferometric and laser spectrometers for measuring infrared spectra The second part presents a detailed treatment of the analysis of the high resolution vibration-rotation spectra of linear, quasilinear, symmetric rotor and asymmetric rotor molecules. In the final part of the book the following topics of current interest are examined in depth: * Electric and magnetic resonance spectroscopy * Spectroscopy of transient species, free radicals and ions, and Van der Waals clusters * Atmospheric and astrophysical spectroscopy, including the spectroscopy of the atmosphere of the Earth and nearby planets, cool stars and molecules in the interstellar medium This comprehensive book is an essential reference for researchers who want to be at the cutting edge in the field of spectroscopy and physical chemistry, atmospheric science and infrared astonomy.

Book Rotational and Vibrational Spectra of Molecular Clusters

Download or read book Rotational and Vibrational Spectra of Molecular Clusters written by Thomas R. Dyke and published by . This book was released on 1986 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research project studies the rotational and vibrational spectroscopy of hydrogen bonded complexes and van der Waals molecules and develops new techniques for gathering this information. The purpose is to provide basic information for modelling the effects of these molecules in atmospheric phenomena and to achieve insights concerning the intermolecular forces manifested in the weak bonds holding cluster molecules together. Rotational spectra were investigated the molecular beam electric resonance method. High resolution radiofrequency and microwave spectra of complexes observed by this technique give accurate rotational constants, electric dipole moments, and nuclear hyperfine interaction data which was used to provide structural data. Methods were developed for observing vibrational spectra of complexes in molecular beams using CARS. Raman spectra were obtained for molecular beams of HCN and DCN polymers in the CN and CH stretching regions. A force field model for the axial modes of these molecules was constructed by combining infrared and Raman data. Infrared absorption spectra for molecular beams of rare gas-OCS complexes on the au3 monomer mode region were obtained using tunable diode lasers. The spectra are rotationally resolved and the Doppler limited linewidths (0.004 cm) show no evidence of vibrational predissociation broadening.