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Dissertations / Theses on the topic 'Vibrational charge transfer'

Author: Grafiati

Published: 9 October 2021

Last updated: 30 July 2025

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1

Adamczyk, Katrin. "Ultrafast charge transfer processes in solution." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16202.

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Die Reaktionspfade und Reaktionsdynamik photoinduzierter bimolekularer Ladungstransferreaktionen werden mit Hilfe der ultraschnellen polarisationsabhängigen UV-Pump/IR-Probe-Spektroskopie charakterisiert. Allgemein akzeptierte Modelle zur Beschreibung von bimolekularen Elektrontranserreaktionen nehmen an, dass Ladungstrennung in polaren Lösungsmitteln zu zwei Arten von Ionenpaaren führt, den lockeren (LIPs) und den engen Ionenpaaren (TIPs). TIPs und LIPs können durch die Beobachtung von Schwingungsmoden spektroskopisch unterschieden werden. Allerdings deuten die multiplen Zeitskalen sowohl für

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2

Prince, Beth Marie. "Vibrational dynamics of excited states probed by fs/ps CARS simulations and applications to ultrafast charge transfer dynamics /." [Ames, Iowa : Iowa State University], 2008.

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3

Cooper, Ian Blake. "Photosynthetic water oxidation and proton-coupled electron transfer." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26707.

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Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.<br>Committee Chair: Bridgette Barry; Committee Member: El-Sayed, Mostafa; Committee Member: Fahrni, Christoph; Committee Member: Kröger, Nils; Committee Member: McCarty, Nael. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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4

Frederickson, Kraig Alan. "Electron loss kinetics in non-self-sustained plasmas and the effect of vibrational nonequilibrium." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1140635547.

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5

Monezi, Natália Mariana. "Espectroscopia Raman ressonante e cálculos DFT de sistemas modelo de transferência de carga." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-24082018-095811/.

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Neste trabalho foram estudados os complexos de transferência de carga resultantes da interação entre as espécies aceptoras de elétrons tetracianoetileno (TCNE) e 7,7,8,8-tetracianoquinodimetano (TCNQ), com aminas mono, bi e tri aromáticas, como espécies doadoras de elétrons, em solução. Também foram estudadas as reações de substituição eletrofílica aromática que ocorre entre o TCNE e aminas. Para tal estudo, foram utilizadas as técnicas espectroscópicas de absorção UV-VIS e Raman, o que permitiu a caracterização dos complexos de transferência de carga, assim como das espécies participantes da

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6

Faria, Dalva Lucia Araujo de. "Estudo espectroscópico de complexos moleculares formados entre algumas aminas aromáticas e dióxido de enxofre." Universidade de São Paulo, 1985. http://www.teses.usp.br/teses/disponiveis/46/46132/tde-07112014-141901/.

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Devido à escassez de dados espectroscópicos sobre as interações de aminas aromáticas com SO2 e devido também à importância que complexos de transferência de carga assumem numa série de processos, inclusive biológicos, realizou-se um estudo objetivando a caracterização dessa interação através de várias técnicas espectroscópicas, como a espectroscopia Raman, no Infravermelho, no visível-ultravioleta e de Ressonância Magnética Nuclear. A partir dos dados obtidos nesses estudos concluímos que ocorre transferência de carga da amina para o SO2 ; essa transferência ocorre a partir do orbital ocupado

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7

Baev, Alexander. "Multi-Photon Interactions with a Time Structure." Doctoral thesis, KTH, Biotechnology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3515.

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<p>The present thesis concerns aspects of the interaction ofmatter in gas, liquid and solid phases, with electromagneticradiation, ranging from the optical to the X-ray region. Overthe last decade the availability of ultrashort strong laserpulses as well as of high power synchrotron sources of tunableX-ray radiation has stimulated a rapid development of newexperimental techniques which makes it possible to analysedifferent physical, chemical and biological processes inunprecedented detail. All of this urges a concomitantdevelopment of adequate theoretical language and methodscombined with simu

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8

Bär, Jaciara. "Absorção de SO2 por líquidos iônicos: efeito do ânion." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-18082016-085659/.

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O dióxido de enxofre (SO2) é um dos principais poluentes atmosféricos e a busca por sistemas capazes de absorver, detectar e/ou quantificar este gás tem sido de grande interesse. Neste contexto, os líquidos iônicos (LI) têm demonstrado potencial aplicação em metodologias de captura e armazenamento de gases. Neste estudo, nosso maior interesse consiste em entender os principais fatores que governam as interações entre o SO2 e diferentes íons formadores de líquidos iônicos. Em particular, foi explorada a interação específica de transferência de carga entre ânions (base de Lewis) e o SO2 (ácido d

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9

Bendiab, Nedjma. "Structure et vibrations des nanotubes de carbone intercalés." Montpellier 2, 2003. http://www.theses.fr/2003MON20050.

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10

Breitenstein, Jacques. "Etude par spectroscopie raman de conducteurs organiques unidimensionnels, (tmtsf) 2x." Paris 7, 1988. http://www.theses.fr/1988PA077179.

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Trois sels de bechgaard (tmtsf)::(2)x (ou x=pf::(6), clo::(4) et reo::(4)) sont etudies dans des conditions de double resonance raman. Determination des modes de vibration donnant des termes importants dans ces conditions de double resonance. Mise en evidence de l'existence des modes rendus actifs grace a un forty couplage avec des transferts dynamiques de charge intermoleculaires ou intramoleculaires. Les informations importantes concernant ce couplage de modes internes - transferts de charge sont obtenues lors de l'etude de la transition metal - isolant et de la mise en ordre a 2k::(f) des a

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11

Tassaing, Thierry. "Étude par spectrométrie de vibration de la dynamique réactionnelle dans des complexes par transfert de charge de type iode-pyridine." Bordeaux 1, 1995. http://www.theses.fr/1995BOR10591.

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Ce memoire est consacre a l'etude par spectrometries d'absorption infrarouge et de diffusion raman de la dynamique reactionnelle au sein de solutions constituees d'un accepteur d'electrons (iode) dilue dans un solvant donneur d'electrons tel que la pyridine. Cette etude repose sur l'analyse de l'evolution des formes des profils associes a un mode normal de vibration du centre accepteur ou du donneur en fonction de la temperature et de la concentration du solvant. En milieu non polaire, l'iode interagit avec la pyridine pour former un complexe moleculaire stable du type pyr---i-i. Dans les mela

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12

Dacosta, Fernandes Benoit. "Etude des propriétés électroniques et vibrationnelles de nano-objets métalliques et hybrides par spectroscopie femtoseconde." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0047/document.

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Ce travail a porté sur l’étude expérimentale de la dynamique électronique et vibrationnelle de nano-objets métalliques et hybrides par spectroscopie pompe-sonde femtoseconde. L’étude de la dynamique des échanges d’énergie électrons-réseau dans des systèmes métalliques bidimensionnels nous a permis de mettre en évidence une accélération du transfert d’énergie entre électrons et phonons due au confinement. Cette accélération est gouvernée par la plus petite dimension des nano-objets étudiés (nano-triangles d’argent 2D) lorsque celle-ci devient inférieure à environ 10 nm. Nous avons aussi étudié

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13

Joyeux, Marc. "Étude vibrationnelle expérimentale et théorique du composé 4-nitropyridine N-oxyde." Châtenay-Malabry, Ecole centrale de Paris, 1988. http://www.theses.fr/1988ECAP0074.

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Analyse des spectres Ir (200-4000 cm**(-1)) et Raman (6-3200 cm**(-1)) de ce compose et de son analogue tetradeuterie sur monocristal: attribution des vibrations externes et internes et interprétation par l'existence d'interactions intermoléculaires fortes (couplages dynamiques importants, mise en défaut des modelés de Kastler-rousset, de l'oscillateur harmonique et du gaz oriente). Analyse des spectres en solutions: relations entre déplacements de raie observes pour un solvant donneur au transfert de charge intramoléculaire induit par formation de liaison hydrogène. Etablissement d'un champ d

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14

Mahmood, Paracha Ayyaz. "Design and fabrication of Mems-based, vibration powered energy harvesting device using electrostatic transduction." Phd thesis, Université Paris-Est, 2009. http://tel.archives-ouvertes.fr/tel-00584339.

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Due to size effects, the microtechnologies that are used to manufacture micro-sensors, allowed a drastic reduction of electrical power consumption. This feature contributed to the emergence of the concept of autonomous sensors, which have the ability to take the energy needed for their operation from the environment where they are located. Among the different energy sources, our choice was made on ambient mechanical vibrations. The electromechanical conversion is done within a transducer integrated with a micromechanical structure. In this work, we have designed and fabricated an electrostatic

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15

Kang, Pengju. "On-line condition assessment of power transformer on-load tap-changers : transient vibration analysis using wavelet transform and self organising map." Thesis, Queensland University of Technology, 2000.

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16

Barak, Arvind. "Excited State Intramolecular Charge Transfer: Ultrafast Electronic and Vibrational Spectroscopic Study." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/6072.

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This thesis incorporates the understanding of the ultrafast excited state photoinduced intramolecular charge transfer (ICT) process in liquid phase. The molecular systems are studied by employing Ultrafast Raman Loss Spectroscopy (URLS) and transient absorption (TA) spectroscopy. The primary goal of this thesis is to observe structural dynamics immediately after the formation of Franck-Condon state and the effect of slight modifications in the structure and solvent onto the excited state ICT process.

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17

Xavier, Francis George Densingh. "NONADIABATIC COLLISIONS OF PROTON WITH CO AND O2 MOLECULES : A QUANTUM MECHANICAL STUDY." Doctoral thesis, 2010. http://hdl.handle.net/10316/95854.

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Documentos apresentados no âmbito do reconhecimento de graus e diplomas estrangeiros<br>Nonadiabatic phenomena are ubiquitous in nature. The dynamics of proton-molecule collisions often evolve on highly coupled electronic potential energy surfaces leading to inelastic and charge transfer processes. In this thesis, we have investigated the quantum dynamics of energy transfer processes involving the inelastic vibrational excitations and the vibrational charge transfer collisions in the H+ + CO and the H+ + O2 systems on our newly obtained quasi-diabatic ab initio potential energy surfaces f

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18

"Charge transfer in DNA: Effects of humidity and molecular vibrations on detection and rate of hole transport." Tulane University, 2013.

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19

Wagener, Philipp. "Photodissoziation von Polyhalogenmethanen in Fluiden: Kurzzeitdynamik und Mechanismen." Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-ACB1-4.

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20

Huang, Chaojun. "Structural Health Monitoring System for Deepwater Risers with Vortex-Induced Vibration: Nonlinear Modeling, Blind Identification, Fatigue/Damage Estimation and Vibration Control." Thesis, 2013. http://hdl.handle.net/1911/71968.

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This study focuses on developing structural health monitoring techniques to detect damage in deepwater risers subjected to vortex-induced vibration (VIV), and studying vibration control strategies to extend the service life of offshore structures. Vibration-based damage detection needs both responses from the undamaged and damaged deepwater risers. Because no experimental data for damaged deepwater risers is available, a model to predict the VIV responses of deepwater risers with given conditions is needed, which is the forward problem. In this study, a new three dimensional (3D) analytical m

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