{"id":134878,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/procesos-de-transferencia-de-carga-en-espectroscopia-sers\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"procesos-de-transferencia-de-carga-en-espectroscopia-sers","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/procesos-de-transferencia-de-carga-en-espectroscopia-sers\/","title":{"rendered":"Procesos de transferencia de carga en espectroscopia sers."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Steven Woolley Mark <\/strong><\/h2>\n<p>Se han estudiado los espectros sers de pirazina y, por primera vez, los de sus derivados metilados (2-metil, 2,3-,2,5-,2,6-dimetil, trimetil y tetrametilpirazina) en electrodo de plata a varios potenciales, observandose cambios importantes en las intensidades relativas de las bandas en funcion del potencial electrico de la interfase.Se ha propuesto una nueva sistematica de analisis de los sers asumiendo que la intensificacion se debe a un proceso de transferencia de carga resonante desde el metal hasta el adsorbato. Esta sistematica se fundamenta en las mismas reglas propuestas para resonancia raman y se han utilizado los resultados obtenidos mediante calculos ab initio a fin de discutir los resultados.  mediante esta metodolog\u00eda se ha podido relacionar las bandas mas intensas de los espectros con las vibraciones que muestran los desplazamientos mas grandes de los minimos de las superficies de energia potencial y de las frecuencias de vibracion entre los dos estados electronicos involucrados en la resonancia.  este resultado viene a confirmar que los procesos de transferencia de carga son los que determinan los cambios en las intensidades de los espectros raman de estas moleculas cuando se comparan con las registradas en sers.  esta es la conclusion mas importante de la tesis que esta relacionada con la dificultad de disponer de claves que permitan determinar el origen del mecanismo de intensificacion del sers.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Procesos de transferencia de carga en espectroscopia sers.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Procesos de transferencia de carga en espectroscopia sers. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Steven Woolley Mark <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 M\u00e1laga<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li> Marcos Guilarte Juan  Ignacio<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Manuel Cortijo Merida <\/li>\n<li> Arenas Rosado Juan  Francisco (vocal)<\/li>\n<li>Antonio Aldaz Riera (vocal)<\/li>\n<li>Ignacio Nebot Gil (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Steven Woolley Mark Se han estudiado los espectros sers de pirazina y, por primera vez, los de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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