Ab Initio Variational Calculations Of Molecular Vibrational Rotational Spectra
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Author |
: Debra J. Searles |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 245 |
Release |
: 2013-03-14 |
ISBN-10 |
: 9783662055618 |
ISBN-13 |
: 3662055619 |
Rating |
: 4/5 (18 Downloads) |
Synopsis Ab Initio Variational Calculations of Molecular Vibrational-Rotational Spectra by : Debra J. Searles
This work had its beginnings in the early 1980s at the University ofWollongong, with significant contributions from Dr. Margret Hamilton, Professors Peter G. Burton and Greg Doherty. The emphasis was to develop computer code to solve the nuclear Schrodinger problem. For bent triatomic molecules the project was fmally realized at the University of Newcastle a decade or so later, with the contribution from Ms. Feng Wan g. Aspects of this work are now taught in the quantum mechanics and electron spectroscopy courses at The University of Newcastle. Even now "complete" ab initio solutions of the time-independent SchrOdinger equation is not commonplace for molecules containing four atoms or more. In fact, when using the Eckart-Watson nuclear Hamiltonian a further restriction needs to be imposed; that is, the molecule is restricted to undergoing small amplitudes of vibration. This Hamiltonian is useful for molecules containing massive nuclei and moreover, has been extremely useful in interpreting the rovibrational spectra of small molecules. Nevertheless, a number of nuclear Hamiltonians that do not embed an equilibrium geometry have become well established and are extremely successful in interpreting rovibrational spectra of floppy molecules. Furthermore, solution algorithms vary greatly from research group to research group and it is still unclear which aspects will survive the next decade. For example, even for a triatomic molecule a general form of a potential function has not yet been uncovered that will generally interpolate with accuracy and precision ab initio discrete surfaces.
Author |
: Dusan Papousek |
Publisher |
: World Scientific |
Total Pages |
: 576 |
Release |
: 1997-10-31 |
ISBN-10 |
: 9789814502450 |
ISBN-13 |
: 9814502456 |
Rating |
: 4/5 (50 Downloads) |
Synopsis Vibrational-rotational Spectroscopy And Molecular Dynamics by : Dusan Papousek
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 |
: Andrey Yachmenev |
Publisher |
: |
Total Pages |
: |
Release |
: 2011 |
ISBN-10 |
: OCLC:837881457 |
ISBN-13 |
: |
Rating |
: 4/5 (57 Downloads) |
Synopsis Variational Calculations of Rotational-vibrational Spectra and Properties of Small Molecules by : Andrey Yachmenev
Author |
: Kirk A. Peterson |
Publisher |
: |
Total Pages |
: 316 |
Release |
: 1990 |
ISBN-10 |
: WISC:89098582083 |
ISBN-13 |
: |
Rating |
: 4/5 (83 Downloads) |
Synopsis Ab Initio Calculations of the Rotational and Rotational- Vibrational Spectra of Molecular Ions by : Kirk A. Peterson
Author |
: Alexander F. Sax |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 242 |
Release |
: 2012-12-06 |
ISBN-10 |
: 9783642468797 |
ISBN-13 |
: 3642468799 |
Rating |
: 4/5 (97 Downloads) |
Synopsis Potential Energy Surfaces by : Alexander F. Sax
Potential Energy Surfaces is a collection of lectures given at the 1996 Mariapfarr Workshop in Theoretical Chemistry, organized by Alexander F. Sax. The Mariapfarr Workshops' aim is to discuss in-depth topics in Theoretical Chemistry. The target group of these workshops is graduate students and postdocs.
Author |
: Yukihiro Ozaki |
Publisher |
: John Wiley & Sons |
Total Pages |
: 636 |
Release |
: 2019-09-03 |
ISBN-10 |
: 9783527344611 |
ISBN-13 |
: 3527344616 |
Rating |
: 4/5 (11 Downloads) |
Synopsis Molecular Spectroscopy, 2 Volume Set by : Yukihiro Ozaki
Uniquely creates a strong bridge between molecular spectroscopy and quantum chemistry This two-volume book consists of many reviews reporting new applications of quantum chemistry to molecular spectroscopy (Raman, infrared, near-infrared, terahertz, far-ultraviolet, etc.). It contains brief introductions to quantum chemistry for spectroscopists, and to the recent progress on molecular spectroscopy for quantum chemists. Molecular Spectroscopy: A Quantum Chemistry Approach examines the recent progress made in the field of molecular spectroscopy; the state of the art of quantum chemistry for molecular spectroscopy; and more. It offers multiple chapters covering the application of quantum chemistry to: visible absorption and fluorescence, Raman spectroscopy, infrared spectroscopy, near-infrared spectroscopy, terahertz spectroscopy, and far-ultraviolet spectroscopy. It presents readers with hydrogen bonding studies by vibrational spectroscopy and quantum chemistry, as well as vibrational spectroscopy and quantum chemistry studies on both biological systems and nano science. The book also looks at vibrational anharmonicity and overtones, and nonlinear and time-resolved spectroscopy. -Comprehensively covers existing and recent applications of quantum chemistry to molecular spectroscopy -Introduces the quantum chemistry for the field of spectroscopy and the advancements being made on molecular spectroscopy for quantum chemistry -Edited by world leading experts who have long standing, extensive experience and international standing in the field Molecular Spectroscopy: A Quantum Chemistry Approach is an ideal book for analytical chemists, theoretical chemists, chemists, biochemists, materials scientists, biologists, and physicists interested in the subject.
Author |
: Michel Herman |
Publisher |
: John Wiley & Sons |
Total Pages |
: 448 |
Release |
: 2009-09-09 |
ISBN-10 |
: 9780470142202 |
ISBN-13 |
: 0470142200 |
Rating |
: 4/5 (02 Downloads) |
Synopsis Global and Accurate Vibration Hamiltonians from High-Resolution Molecular Spectroscopy by : Michel Herman
The latest in a series providing chemical physicists with a forum for critical, authoritative evaluations of advances in every area of the discipline, this stand-alone volume focuses on using high resolution molecular spectroscopy to arrive at global and accurate Vibration Hamiltonians.
Author |
: Joel M Bowman |
Publisher |
: World Scientific |
Total Pages |
: 603 |
Release |
: 2022-06-14 |
ISBN-10 |
: 9789811237928 |
ISBN-13 |
: 9811237921 |
Rating |
: 4/5 (28 Downloads) |
Synopsis Vibrational Dynamics Of Molecules by : Joel M Bowman
Vibrational Dynamics of Molecules represents the definitive concise text on the cutting-edge field of vibrational molecular chemistry. The chapter contributors are a Who's Who of world leaders in the field. The editor, Joel Bowman, is widely considered as one of the founding fathers of theoretical reaction dynamics. The included topics span the field, from fundamental theory such as collocation methods and vibrational CI methods, to interesting applications such as astrochemistry, supramolecular systems and virtual computational spectroscopy. This is a useful reference for theoretical chemists, spectroscopists, physicists, undergraduate and graduate students, lecturers and software developers.
Author |
: Philippe B. Wilson |
Publisher |
: Royal Society of Chemistry |
Total Pages |
: 383 |
Release |
: 2020-12-10 |
ISBN-10 |
: 9781788014618 |
ISBN-13 |
: 1788014618 |
Rating |
: 4/5 (18 Downloads) |
Synopsis Computational Techniques for Analytical Chemistry and Bioanalysis by : Philippe B. Wilson
This work will serve as a definitive overview of the field of computational simulation as applied to analytical chemistry and biology, drawing on recent advances as well as describing essential, established theory for graduates and postgraduate researchers.
Author |
: R. Carbo-Dorca |
Publisher |
: Springer Science & Business Media |
Total Pages |
: 138 |
Release |
: 2012-12-06 |
ISBN-10 |
: 9783642572739 |
ISBN-13 |
: 3642572731 |
Rating |
: 4/5 (39 Downloads) |
Synopsis Molecular Quantum Similarity in QSAR and Drug Design by : R. Carbo-Dorca
The authors introduce the concept of Molecular Quantum Similarity, developed in their laboratory, in a didactic form. The basis of the concept combines quantum theoretical calculations with molecular structure and properties even for large molecules. They give definitions and procedures to compute similarities molecules and provide graphical tools for visualization of sets of molecules as n-dimensional point charts.