{"id":94504,"date":"2018-03-11T10:14:14","date_gmt":"2018-03-11T10:14:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/complejos-de-iridio-con-ligandos-tipo-pinza-ppsi\/"},"modified":"2018-03-11T10:14:14","modified_gmt":"2018-03-11T10:14:14","slug":"complejos-de-iridio-con-ligandos-tipo-pinza-ppsi","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/complejos-de-iridio-con-ligandos-tipo-pinza-ppsi\/","title":{"rendered":"Complejos de iridio con ligandos tipo pinza p,p,si"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda  Alba Garcia Camprubi <\/strong><\/h2>\n<p>El objetivo de la tesis doctoral es la consecuci\u00f3n y estudio de complejos de iridio(iii) coordinativamente insaturados cuyo estado fundamental sea reactivo. En otras palabras, se persigue la s\u00edntesis de complejos catal\u00edticamente activos que presenten, en el estado fundamental, ligandos catal\u00edticamente relevantes (hidruro, alquil, alquenil, carbeno, etc..) En disposici\u00f3n relativa cis con respecto a las vacantes de coordinaci\u00f3n del complejo. esta situaci\u00f3n, \u00f3ptima desde el punto de vista de la reactividad, es extremadamente poco frecuente, puesto que los menionados ligandos catal\u00edticamente relevantes son siempre grupos de gran efecto e influencia trans, y por tanto fuerzan que la geometr\u00eda molecular de menor energ\u00eda sea aquella en que la vacante de coordinaci\u00f3n sea trans a estos ligandos. La estrategia para conseguir este tipo de complejos es la utilizaci\u00f3n de ligandos auxiliares con grupos silil (sp3) cuya influencia y efecto trans supera al de los mencionados ligandos catal\u00edticamente relevantes.11 para asegurar la efectividad de estos grupos silil, estos se introducir\u00e1n en estructuras de ligando de tipo pinza, de las que se espera que favorezcan complejos insaturados y estables. el objetivo \u00faltimo de este tipo de complejos es desarrollar catalizadores cuya favorable geometr\u00eda en el estado fundamental se traduzca en ventajas cin\u00e9ticas y\/o en una mejora de la estabilidad durante la cat\u00e1lisis. Es previsible, no obstante, que tales complejos presenten algunos problemas derivados de la utilizaci\u00f3n de \u00e1tomos donores de silicio sp3, como son la existencia de is\u00f3meros o la afinidad por reactivos oxigenados o hidruros. La caracterizaci\u00f3n de este tipo de potenciales problemas y el estudio de su incidencia en la cat\u00e1lisis son tambi\u00e9n objetivos de esta tesis doctoral.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Complejos de iridio con ligandos tipo pinza p,p,si<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Complejos de iridio con ligandos tipo pinza p,p,si <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda  Alba Garcia Camprubi <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/06\/2009<\/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>Eduardo Sola Larraya<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: pedro jos\u00e9 P\u00e9rez romero <\/li>\n<li>M\u00aa concepci\u00f3n Gimeno flor\u00eda (vocal)<\/li>\n<li>zoraida Freixa fern\u00e1ndez (vocal)<\/li>\n<li>david Morales morales (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Alba Garcia Camprubi El objetivo de la tesis doctoral es la consecuci\u00f3n y estudio de complejos [&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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