[PDF] Spectroscopy Of Molecular Rotation In Gases And Liquids eBook

Author : A. I. Burshtein
Publisher : Cambridge University Press
Page : 312 pages
File Size : 16,76 MB
Release : 2005-07-14
Category : Science
ISBN : 9780521675581

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Spectroscopic studies can reveal a wealth of information about the rotational and vibrational behavior of the constituent molecules of gases and liquids. This book reviews the fundamental concepts and models that underpin such studies. Throughout, discussion of the various quantum mechanical and semiclassical theories is interwoven with analysis of experimental results.

Author : John M. Brown
Publisher : Cambridge University Press
Page : 1074 pages
File Size : 37,73 MB
Release : 2003-04-10
Category : Science
ISBN : 9780521530781

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The definitive text on the rotational spectroscopy of diatomic molecules.

Author : Dusan Papousek
Publisher : World Scientific
Page : 576 pages
File Size : 22,58 MB
Release : 1997-10-31
Category : Science
ISBN : 9814502456

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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 : James E. Wollrab
Publisher : Academic Press
Page : 485 pages
File Size : 33,70 MB
Release : 2013-10-22
Category : Science
ISBN : 148319485X

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Physical Chemistry, A Series of Monographs: Rotational Spectra and Molecular Structure covers the energy levels and rotational transitions. This book is divided into nine chapters that evaluate the rigid asymmetric top molecules and the nuclear spin statistics for asymmetric tops. Some of the topics covered in the book are the asymmetric rotor functions; rotational transition intensities; classes of molecules; nuclear spin statistics for linear molecules and symmetric tops; and classical appearance of centrifugal and coriolis forces. Other chapters deal with the energy levels and effects of centrifugal distortion, as well as the internuclear distance and moments of inertia. The discussion then shifts to the coriolis coupling effects on rotational constants and the perturbation treatment of vibration-rotational Hamiltonian. The last chapter is devoted to the examination of origin of the quadrupole interaction. The book can provide useful information to chemists, physicists, electrical engineers, students, and researchers.

Author : Philip Bunker
Publisher : Elsevier
Page : 441 pages
File Size : 19,55 MB
Release : 2012-12-02
Category : Science
ISBN : 032315025X

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Molecular Symmetry and Spectroscopy deals with the use of group theory in quantum mechanics in relation to problems in molecular spectroscopy. It discusses the use of the molecular symmetry group, whose elements consist of permutations of identical nuclei with or without inversion. After reviewing the permutation groups, inversion operation, point groups, and representation of groups, the book describes the use of representations for labeling molecular energy. The text explains an approximate time independent Schrödinger equation for a molecule, as well as the effect of a nuclear permutation or the inversion of E* on such equation. The book also examines the expression for the complete molecular Hamiltonian and the several groups of operations commuting with the Hamiltonian. The energy levels of the Hamiltonian can then be symmetrically labeled by the investigator using the irreducible representations of these groups. The text explains the two techniques to change coordinates in a Schrödinger equation, namely, (1) by using a diatomic molecule in the rovibronic Schrödinger equation, and (2) by a rigid nonlinear polyatomic molecule. The book also explains that using true symmetry, basis symmetry, near symmetry, and near quantum numbers, the investigator can label molecular energy levels. The text can benefit students of molecular spectroscopy, academicians, and investigators of molecular chemistry or quantum mechanics.

Author : Jeffrey I. Steinfeld
Publisher : Courier Corporation
Page : 514 pages
File Size : 28,74 MB
Release : 2005-06-10
Category : Science
ISBN : 0486441520

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This unified treatment introduces upper-level undergraduates and graduate students to the concepts and methods of modern molecular spectroscopy and their applications to quantum electronics, lasers, and related optical phenomena. Starting with a review of the prerequisite quantum mechanical background, the text examines atomic spectra and diatomic molecules, including the rotation and vibration of diatomic molecules and their electronic spectra. A discussion of rudimentary group theory advances to considerations of the rotational spectra of polyatomic molecules and their vibrational and electronic spectra; molecular beams, masers, and lasers; and a variety of forms of spectroscopy, including optical resonance spectroscopy, coherent transient spectroscopy, multiple-photon spectroscopy, and spectroscopy beyond molecular constants. The text concludes with a series of useful appendixes.