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.

High resolution Fourier transform spectra of linear molecules have evoked a great deal of interest during the last several years, which could be seen from the several hundreds of papers published in the journal on the spectra of diatomic and small linear polyatomic molecules. This book describes the advantages of FT Spectroscopy, the techniques employed in absorption and emission spectroscopy, and presents the theoretical models and formulas used in the analyses and interpretation of the spectra. The Perturbations observed in the spectra due to Fermi, Darling-Dennison, Coriolis, and other anharmonic resonances; and vibrational and rotational l-type resonances etc. are discussed with suitable examples. The types of information obtained from FT spectroscopy of two to ten atomic linear molecules, their observed transitions and spectral perturbation etc. are presented along with figures and curves.

Fourier Transform Infrared Spectroscopy: Applications to Chemical Systems presents the chemical applications of the Fourier transform interferometry (FT-IR). The book contains discussions on the applications of FT-IR in the fields of chromatography FT-IR, polymers and biological macromolecules, emission spectroscopy, matrix isolation, high-pressure interferometry, and far infrared interferometry. The final chapter is devoted to the presentation of the use of FT-IR in solving national technical problems such as air pollution, space exploration, and energy related subjects. Research and analytical chemists will find the book insightful.

A bestselling classic reference, now expanded and updated to cover the latest instrumentation, methods, and applications The Second Edition of Fourier Transform Infrared Spectrometry brings this core reference up to date on the uses of FT-IR spectrometers today. The book starts with an in-depth description of the theory and current instrumentation of FT-IR spectrometry, with full chapters devoted to signal-to-noise ratio and photometric accuracy. Many diverse types of sampling techniques and data processing routines, most of which can be performed on even the less expensive instruments, are then described. Extensively updated, the Second Edition: * Discusses improvements in optical components * Features a full chapter on FT Raman Spectrometry * Contains new chapters that focus on different ways of measuring spectra by FT-IR spectrometry, including fourteen chapters on such techniques as microspectroscopy, internal and external reflection, and emission and photoacoustic spectrometry * Includes a new chapter introducing the theory of vibrational spectrometry * Organizes material according to sampling techniques Designed to help practitioners using FT-IR capitalize on the plethora of techniques for modern FT-IR spectrometry and plan their experimental procedures correctly, this is a practical, hands-on reference for chemists and analysts. It's also a great resource for students who need to understand the theory, instrumentation, and applications of FT-IR.