{"id":54800,"date":"2018-03-09T22:42:31","date_gmt":"2018-03-09T22:42:31","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/mecanismos-de-interaccion-magnetica-en-cristales-moleculares\/"},"modified":"2018-03-09T22:42:31","modified_gmt":"2018-03-09T22:42:31","slug":"mecanismos-de-interaccion-magnetica-en-cristales-moleculares","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/barcelona\/mecanismos-de-interaccion-magnetica-en-cristales-moleculares\/","title":{"rendered":"Mecanismos de interacci\u00f3n magn\u00e9tica en cristales moleculares"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jordi Ribas Ari\u00f1o <\/strong><\/h2>\n<p>Los proyectos de investigaci\u00f3n llevados a cabo en el transcurso de esta tesis doctoral tratan del estudio a nivel te\u00f3rico\/computacional de los mecanismos de interacci\u00f3n magn\u00e9tica en varios sistemas org\u00e1nicos e inorg\u00e1nicos. A continuaci\u00f3n se enumeran las conclusiones m\u00e1s importantes de esta tesis, clasificadas seg\u00fan los sistemas que se han estudiado.  mecanismos de interacci\u00f3n magn\u00e9tica en pol\u00edmeros de fulereno c60     a,- el mecanismo m\u00e1s plausible capaz de justificar la presencia de momentos magn\u00e9ticos en la fase ferromagn\u00e9tica del pol\u00edmero de c60 es el que asocia la generaci\u00f3n de dichos momentos con la ruptura de uno de los dos enlaces c-c que mantienen unidos los fulerenos entre s\u00ed.     b,- la ruptura de uno de estos enlaces c-c implica la generaci\u00f3n de un triplete (t2), de manera que cada uno de los dos fulerenos unidos por dicho enlace c-c se convierte en una especie radicalaria.     c,- la ruptura de los enlaces c-c tiene lugar despu\u00e9s de someter al pol\u00edmero de c60 a elevadas presiones y temperaturas.     d,- los distintos tripletes t2 que se generan en el s\u00f3lido despu\u00e9s del tratamiento de elevadas presiones y temperaturas est\u00e1n magn\u00e9ticamente acoplados entre s\u00ed, puesto que se ha demostrado que los fulerenos c60 pueden actuar como excelentes acopladores ferromagn\u00e9ticos. en consecuencia, el mecanismos basado en la ruptura de enlaces c-c tambi\u00e9n es capaz de justificar que el pol\u00edmero c60 se comporte como un im\u00e1n en base molecular.     e,- se ha demostrado que los mecanismos basados en la generaci\u00f3n de vacantes y en la generaci\u00f3n de vacantes y en la generaci\u00f3n de estructuras abiertas de mol\u00e9culas de c60 para justificar la presencia de momentos magn\u00e9ticos en la fase ferromagn\u00e9tica del pol\u00edmero de c60, no son v\u00e1lidos porque contradicen varios hechos experimentales.  estructura electr\u00f3nica e interacci\u00f3n magn\u00e9tica en metaloporfirinas     a,- el an\u00e1lisis de las correlaciones magneto-estructurales de la familia<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Mecanismos de interacci\u00f3n magn\u00e9tica en cristales moleculares<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Mecanismos de interacci\u00f3n magn\u00e9tica en cristales moleculares <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jordi Ribas Ari\u00f1o <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/09\/2006<\/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>Juan  Jose Novoa Vide<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: rosa Caballol <\/li>\n<li>Fernando Palacio (vocal)<\/li>\n<li>Manuel Almeida (vocal)<\/li>\n<li>juame Veciana (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jordi Ribas Ari\u00f1o Los proyectos de investigaci\u00f3n llevados a cabo en el transcurso de esta tesis doctoral [&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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