Download or read book ETUDE PAR SPECTROSCOPIES D ABSORPTION INFRAROUGE ET DE DIFFUSION RAMAN DE LA RELAXATION ROTATIONNELLE ET VIBRATIONNELLE DES MOLECULES DE THIOPHENE ET DE FURANNE written by JEAN-PAUL.. PINAN LUCARRE and published by . This book was released on 1980 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE EXPERIMENTALE EN PHASE LIQUIDE ET DESCRIPTION DES METHODES DE CALCUL POUR LA DECONVOLUTION DES INTENSITES. ANALYSE DES REORIENTATIONS MOLECULAIRES AUTOUR DES DIFFERENTS AXES PRINCIPAUX D'INERTIE; DISCUSSION DU CARACTERE ISOTROPE OU ANISOTROPE DES ROTATIONS. ANALYSE DE LA VARIATION THERMIQUE DES PROFILS DES BANDES IR ET RAMAN A L'AIDE DE FONCTIONS DE CORRELATION ROTATIONNELLE ET VIBRATIONNELLE
Download or read book Ultrafast Infrared And Raman Spectroscopy written by M.D. Fayer and published by CRC Press. This book was released on 2001-03-16 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of procedures for probing bond activation, H-bonded systems, molecular dynamical mechanisms, vibrational dephasing, simple liquids, and proteins and energy flow effects using ultrafast vibrational spectroscopy experiments. It discusses experimental and theoretical methods of ultrafast infrared and Raman measurements.
Download or read book Introduction to Infrared and Raman Spectroscopy written by Norman Colthup and published by Elsevier. This book was released on 2012-12-02 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Infrared and Raman Spectroscopy focuses on the theoretical and experimental aspects of infrared and Raman spectroscopy, with emphasis on detailed group frequency correlations and their vibrational origin. Topics covered include vibrational and rotational spectra, molecular symmetry, methyl and methylene groups, triple bonds and cumulated double bonds, and olefin groups. Aromatic and heteroaromatic rings are also considered, along with carbonyl compounds and molecular vibrations. This book is comprised of 14 chapters and begins with a discussion on the use of Raman and infrared spectroscopy to study the vibrational and rotational frequencies of molecules, paying particular attention to photon energy and degrees of freedom of molecular motion. The quantum mechanical harmonic oscillator and the anharmonic oscillator are described. The next chapter focuses on the experimental techniques and instrumentation needed to measure infrared absorption spectra and Raman spectra. Symmetry is then discussed from the standpoint of the spectroscopist. The following chapters explore the vibrational origin of group frequencies, with an emphasis on mechanical effects; spectra-structure correlations; and the spectra of compounds such as ethers, alcohols, and phenols. The final chapter demonstrates how the frequencies and forms of a nonlinear molecule's normal modes of vibration may be calculated mathematically. This monograph will be a useful resource for spectroscopists and physical scientists.
Download or read book Infrared and Raman Spectroscopy of Biological Materials written by Hans-Ulrich Gremlich and published by CRC Press. This book was released on 2000-09-25 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infrared and Raman Spectroscopy of Biological Materials facilitates a comprehensive and through understanding of the latest developments in vibrational spectroscopy. It contains explains key breakthroughs in the methodologies and techniques for infrared, near-infrared, and Raman spectroscopy. Topics include qualitative and quantitative analysis, bi
Download or read book Analyse par spectroscopies IR et Raman de la relaxation vibrationnelle dans les diverses phases des cristaux liquides du type 4 n alkyl 4 cyanobiph nyle written by Jean-Marc De Zen and published by . This book was released on 1992 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS ENTREPRIS L'ANALYSE DES FONCTIONS DE CORRELATION (OBTENUES PAR TRANSFORMEE DE FOURIER DES PROFILS RAMAN OU IR D'UN VIBRATEUR SONDE) POUR UNE SERIE DE CRISTAUX LIQUIDES DU TYPE 4-N-ALKYL-4-CYANOBIPHENYLES SUR L'ENSEMBLE DE LEUR POLYMORPHISME. ON PEUT INTERPRETER CES RESULTATS PAR UNE MODELISATION DES FLUCTUATIONS TEMPORELLES DE LA FREQUENCE DU VIBRATEUR DANS L'HYPOTHESE D'UN MECANISME DE PURE RELAXATION DE PHASE. LES PROCESSUS DYNAMIQUES GAUSSIEN-MARKOVIENS, SOUVENT UTILISES AVEC SUCCES POUR DES LIQUIDES SIMPLES OU DES SOLUTIONS DILUEES, NE SONT PLUS APPLICABLES DANS LE CAS DES MILIEUX STRUCTURES QUE SONT LES MESOPHASES ET MEME LA PHASE LIQUIDE DE CES CRISTAUX LIQUIDES. ON PROPOSE ALORS UNE NOUVELLE APPROCHE PUREMENT STATISTIQUE SUR LA BASE D'UN MECANISME DE RENOUVELLEMENT DE L'EQUILIBRE COMMANDE PAR UNE DISTRIBUTION DE WEIBULL. POUR MIEUX COMPRENDRE LA STRUCTURATION DES PHASE FLUIDES, NOUS PRESENTONS EN COMPLEMENT UNE ETUDE PAR DIFFUSION RAMAN DES PHASES SOLIDES STABLES ET METASTABLES PRESENTEES PAR CES MOLECULES N-CB
Download or read book Ultrafast Infrared Vibrational Spectroscopy written by Michael D. Fayer and published by CRC Press. This book was released on 2013-03-04 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of laser-based sources of ultrafast infrared pulses has extended the study of very fast molecular dynamics to the observation of processes manifested through their effects on the vibrations of molecules. In addition, non-linear infrared spectroscopic techniques make it possible to examine intra- and intermolecular interactions and how such interactions evolve on very fast time scales, but also in some instances on very slow time scales. Ultrafast Infrared Vibrational Spectroscopy is an advanced overview of the field of ultrafast infrared vibrational spectroscopy based on the scientific research of the leading figures in the field. The book discusses experimental and theoretical topics reflecting the latest accomplishments and understanding of ultrafast infrared vibrational spectroscopy. Each chapter provides background, details of methods, and explication of a topic of current research interest. Experimental and theoretical studies cover topics as diverse as the dynamics of water and the dynamics and structure of biological molecules. Methods covered include vibrational echo chemical exchange spectroscopy, IR-Raman spectroscopy, time resolved sum frequency generation, and 2D IR spectroscopy. Edited by a recognized leader in the field and with contributions from top researchers, including experimentalists and theoreticians, this book presents the latest research methods and results. It will serve as an excellent resource for those new to the field, experts in the field, and individuals who want to gain an understanding of particular methods and research topics.
Download or read book ETUDE PAR SPECTROSCOPIE INFRAROUGE ET RAMAN DES MOUVEMENTS MOLECULAIRES DE LA MOLECULE DE SF 6 EN SOLUTION DANS DES FLUIDES CRYOGENIQUES written by ANTOINE.. VINIT and published by . This book was released on 1978 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTERPRETATION DE CES SPECTRES PAR LE MODELE DES SPHERES RUGUEUSES: LA DYNAMIQUE DU MILIEU EST PRINCIPALEMENT DETERMINEE PAR DES CLIVES BINAIRES NON CORRELES ENTRE MOLECULES DE SOLVANT ET DE SOLUTE. INTERPRETATION DES SOLUBILITES DE SF::(6). DETERMINATION DES TEMPS DE CORRELATION ET CARACTERISATION DE LA RELAXATION VIBRATIONNELLE DANS LE MODE NU ::(3)
Download or read book Vibrational Spectroscopy written by D. N. Sathyanarayana and published by New Age International. This book was released on 2015-07 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrational Spectroscopy Provides In A Very Readable Fashion A Comprehensive Account Of The Fundamental Principles Of Infrared And Raman Spectroscopy For Structural Applications To Inorganic, Organic And Coordination Compounds. Theoretical Analyses Of The Spectra By Normal Coordinate Treatment, Factor Group Analysis And Molecular Mechanics Are Delineated.The Book Features: * Coverage From First Principles To Recent Advances * Relatively Self-Contained Chapters * Experimental Aspects * Step By Step Treatment Of Molecular Symmetry And Group Theory * Recent Developments Such As Non-Linear Raman Effects * Comprehensive Treatment Of Rotation Spectroscopy * Band Intensities * Spectra Of Crystals * End-Of-Chapter Exercises.Suitable For Students And Researchers Interested In The Field Of Vibrational Spectroscopy. No Prior Knowledge Of Concepts Specific To Vibrational Spectroscopy Is Necessary. Mathematical Background Such As Matrices And Vectors Are Provided.
Download or read book ETUDE DE LA RELAXATION D ENERGIE ROTATIONNELLE ET VIBRATIONNELLE PAR COLLISIONS DANS LES MELANGES CO 2 AR ET CO 2 HE A L AIDE D UNE EXPERIENCE DE SPECTROSCOPIE DOUBLE RESONANCE written by ARNAUD.. DEROUSSIAUX and published by . This book was released on 1997 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'UTILISATION D'UNE EXPERIENCE DE SPECTROSCOPIE DOUBLE RESONANCE RAMAN-INFRAROUGE NOUS A PERMIS D'ETUDIER LES TAUX DE RELAXATION COLLISIONNELLE DES NIVEAUX D'ENERGIE DES MELANGES CO#2-AR ET CO#2-HE (10% CO#2, 90% GAZ RARE). DEUX LASERS IMPULSIONNELS, UN ND : YAG DOUBLE EN FREQUENCE ET UN LASER A COLORANT AMPLIFIE REALISENT L'EXCITATION RAMAN QUI PEUPLE UN NIVEAU ROVIBRATIONNEL. LA RELAXATION DE POPULATION EST MESUREE PAR UN LASER SONDE A CO#2 CONTINU POUR DES PRESSIONS VARIANT DE 0.5-100 TORR. NOUS AVONS MESURE LES TAUX DE RELAXATION VIBRATIONNELLE POUR LES DEUX NIVEAUX DE FERMI (DEPOPULATION TOTALE DE V#1 ET POPULATION DE 2V#2 A PARTIR DE V#1 POUR DES PRESSIONS DE 2 A 100 TORR). LES COURBES ENREGISTREES ONT ETE ANALYSEES A L'AIDE D'UN MODELE A CINQ NIVEAUX (LES CINQ NIVEAUX DE PLUS BASSE ENERGIE) ET LES TAUX DE RELAXATION VIBRATIONNELLE ENTRE CES DIFFERENTS NIVEAUX ONT ETE DETERMINES. CONCERNANT LA PARTIE ROTATIONNELLE, NOUS AVONS ETUDIE LA RELAXATION ROTATIONNELLE DANS LE NIVEAU VIBRATIONNEL (02#00). NOUS AVONS MESURE LES TAUX DE DEPOPULATION TOTALE DE LA COMPOSANTE ROTATIONNELLE POMPEE (14J34 ; PRESSION
Download or read book Vibrational Spectroscopy of Trapped Species written by Harry Evans Hallam and published by Wiley-Interscience. This book was released on 1973 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vibrational Intensities written by B.S. Galabov and published by Elsevier. This book was released on 1996-11-22 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current volume is a single topic volume on the vibrational intensities in the infrared and Raman spectra. Vibrational intensities in infrared and Raman spectra are important physical quantities that are directly related to the distribution and fluctuations of electric charges in the molecule. These spectral parameters can be experimentally determined with good accuracy for many molecules. Additionally, infrared and Raman intensities are presently estimated theoretically by advanced analytical derivative ab initio molecular orbital methods. These fundamental molecular quantities are being used in structural, and other studies, on a limited basis. Features of this book - Presents in a systematic way, the theoretical approaches that are used in analyzing and predicting vibrational intensities - The formalisms developed are illustrated with detailed numerical examples - Most of the theoretical models described were obtained and then applied to chosen molecules - A consistent notation is used in presenting the different theoretical approaches, thus eliminating another barrier in understanding some methods, especially those developed by the Russian spectroscopic school.
Download or read book Introduction to Infrared and Raman Spectroscopy written by Norman B. Colthup and published by Elsevier. This book was released on 1990-10-10 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now in its third edition, this classic text covers many aspects of infrared and Raman spectroscopy that are critical to the chemist doing structural or compositional analysis. This work includes practical and theoretical approaches to spectral interpretation as well as a discussion of experimental techniques. Emphasis is given to group frequencies, which are studied in detailed discussions, extensive tables, and over 600 carefully chosen and interpreted spectral examples. Also featured is a unique treatment of group frequencies that stresses their mechanical origin. This qualitative approach to vibrational analysis helps to simplify spectral interpretation.Additional topics include basic instrumental components and sampling techniques, quantitative analysis, Raman polarization data, infrared gas contours, and polarized IR studies, among others. - Focuses on group frequency correlations and how to use them in spectral interpretation - Revised and updated by a pioneer in the field, Norman Colthup, who for thirty years has served as an expert lecturer for the Fisk Infrared Institute - Explores new group frequency studies in aromatics, alkanes and olefins, among others - Includes completely updated section on instrumentation
Download or read book ETUDE PAR SPECTROSCOPIES DE DIFFUSION RAMAN ET D ABSORPTION INFRAROUGE DES NIOBATES ET DES TANTALATES DE METAUX DIVALENTS ET STRUCTURE DE TYPE BLOCS 1 X 2 written by YVONNE.. REPELIN and published by . This book was released on 1979 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: SYNTHESE ET RAPPEL DES STRUCTURES DES COMPOSES DU TYPE "BLOCS 1 X 2". ETUDE THEORIQUE DES VIBRATIONS DE TROIS DIFFERENTS TYPES DE STRUCTURE. SPECTRES DE DIFFUSION RAMAN ET D'ABSORPTION IR. ANALYSE EN COORDONNEES NORMALES DES COMPOSES BANB::(2)O::(6) ET BATA::(2)O::(6). REPRESENTATION DES MODES NORMAUX DANS BANB::(2)O::(6). ANALYSE EN COORDONNEES NORMALES DES COMPOSES CATA::(2)O::(6), BATA::(2)O::(6), SRTA::(2)O::(6) ET SRNB::(2)O::(6) ET DE PBNB::(2)O::(6) ET PBTA::(2)O::(6)
Download or read book MODELISATION DES SPECTRES D ABSORPTION INFRAROUGE ET DE DIFFUSION RAMAN COHERENTE written by FRANCOIS.. EMOND and published by . This book was released on 1995 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'INTERET CROISSANT PORTE AUX TECHNIQUES DE DIAGNOSTIC OPTIQUE ET LA PRECISION ACCRUE DES SIGNATURES SPECTRALES AINSI OBTENUES, SUPPOSENT, LORSQUE L'ON VEUT EFFECTUER DES CALCULS PREDICTIFS, QUE LES MECANISMES COLLISIONNELS SOIENT PARFAITEMENT MAITRISES. C'EST POURQUOI IL EST IMPORTANT D'ELABORER UN MODELE DE RELAXATION DE LA ROTATION MOLECULAIRE DECRIVANT CORRECTEMENT DES SITUATIONS EXPERIMENTALES AUSSI VARIEES QUE POSSIBLE. C'EST AU DEVELOPPEMENT D'UN TEL MODELE QUE CETTE THESE EST CONSACREE. POUR CELA, ON A TOUT D'ABORD REPLACE, A L'AIDE DU FORMALISME DE LA FONCTION MEMOIRE, LES LOIS D'ECHELLE DYNAMIQUE OBTENUES A LA LIMITE DES HAUTES TEMPERATURES DANS UN CADRE THEORIQUE GENERAL. CECI A FAIT APPARAITRE QUE CE MODELE LIMITE NE CONTENAIT PLUS D'INFORMATIONS SUR L'ASPECT MACROSCOPIQUE DE LA RELAXATION DU MOMENT ANGULAIRE. ON A DONC MODIFIE CE MODELE DE MANIERE A INTRODUIRE LES TEMPS DE RELAXATION MANQUANTS, QUI PEUVENT ETRE ATTEINTS EXPERIMENTALEMENT ET NE SONT DONC PAS REDUITS A DE SIMPLES PARAMETRES AJUSTABLES. DE NOMBREUSES APPLICATIONS SPECTROSCOPIQUES ILLUSTRENT LA GENERALITE DU MODELE AINSI OBTENU AUSSI BIEN EN DIFFUSION RAMAN COHERENTE QU'EN ABSORPTION INFRAROUGE. CE FORMALISME EST CAPABLE DE DECRIRE DE FACON PREDICTIVE DES BANDES DE TRANSITION ENTRE ETATS MOLECULAIRES AUSSI COMPLEXES QUE CEUX FAISANT INTERVENIR DES MODES VIBRATIONNELS EXCITES, TELS QUE LA FLEXION DE LA MOLECULE DE DIOXYDE DE CARBONE. LA DERNIERE PARTIE DE CE TRAVAIL EST CONSACREE A L'EXTENSION DE L'APPROCHE THEORIQUE PROPOSEE, AU CAS OU LA DUREE FINIE DES COLLISIONS MOLECULAIRES NECESSITE UN TRAITEMENT HORS DE L'APPROXIMATION DE L'IMPACT
Download or read book Etude rotationnelle et vibrationnelle des spectres de diffusion Raman moyenne et haute r solution written by André Chapput and published by . This book was released on 1975 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared and Raman Spectroscopy written by Peter Larkin and published by Elsevier. This book was released on 2017-11-13 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infrared and Raman Spectroscopy, Principles and Spectral Interpretation, Second Edition provides a solid introduction to vibrational spectroscopy with an emphasis on developing critical interpretation skills. This book fully integrates the use of both IR and Raman spectroscopy as spectral interpretation tools, enabling the user to utilize the strength of both techniques while also recognizing their weaknesses. This second edition more than doubles the amount of interpreted IR and Raman spectra standards and spectral unknowns. The chapter on characteristic group frequencies is expanded to include increased discussions of sulphur and phosphorus organics, aromatic and heteroaromatics as well as inorganic compounds. New topics include a discussion of crystal lattice vibrations (low frequency/THz), confocal Raman microscopy, spatial resolution in IR and Raman microscopy, as well as criteria for selecting Raman excitation wavelengths. These additions accommodate the growing use of vibrational spectroscopy for process analytical monitoring, nanomaterial investigations, and structural and identity determinations to an increasing user base in both industry and academia. - Integrates discussion of IR and Raman spectra - Pairs generalized IR and Raman spectra of functional groups with tables and text - Includes over 150 fully interpreted, high quality IR and Raman reference spectra - Contains fifty-four unknown IR and Raman spectra, with a corresponding answer key
Download or read book Molecular Vibrations written by Edgar Bright Wilson and published by Courier Corporation. This book was released on 1980-03-01 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pedagogical classic and essential reference focuses on mathematics of detailed vibrational analyses of polyatomic molecules, advancing from application of wave mechanics to potential functions and methods of solving secular determinant.
