{"id":90226,"date":"2018-03-10T00:15:37","date_gmt":"2018-03-10T00:15:37","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/factores-estericos-en-reacciones-de-substitucion-con-complejos-aminados-de-metales-de-transicion\/"},"modified":"2018-03-10T00:15:37","modified_gmt":"2018-03-10T00:15:37","slug":"factores-estericos-en-reacciones-de-substitucion-con-complejos-aminados-de-metales-de-transicion","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/factores-estericos-en-reacciones-de-substitucion-con-complejos-aminados-de-metales-de-transicion\/","title":{"rendered":"Factores est\u00e9ricos en reacciones de substituci\u00f3n con complejos aminados de metales de transici\u00f3n"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Elisa Rodr\u00edguez Frias <\/strong><\/h2>\n<p>En este trabajo se realiza un estudio cin\u00e9tico de las reacciones de acuatizaci\u00f3n de diversos complejos pentaaminados con diferentes impedimento est\u00e9rico y ligandos neutros (l) de f\u00f3rmula general (m(r)5l)x3 y donde m = co(iii), cr(iii) y rh(iii); r = nh3 \u00f1y nh2ch3; y l = dmf, dmac, dmso, ch3oh, ch3ch2oh y ch3cn. Tambi\u00e9n se estudia la reacci\u00f3n entre el \u00e1cido ars\u00e9nico y diferentes aquacomplejos de f\u00f3rmula general, (m(r)5(h2o))x3 donde m = co(iii) y cr(iii); y r = nh3, nh2ch3 varios ligandos macroc\u00edclicos pentadentados.  se describe la s\u00edntesis de 43 compuestos, 11 de los cuales han sido sintetizados y caracterizados por primera vez.  en los estudios de acuatizaci\u00f3n se determinanlas constantes de velocidad as\u00ed como los par\u00e1metros de activaci\u00f3n. Se describe el sistema de presurizaci\u00f3n empleado, a cuya puesta a punto ha contribuido este trabajo. A partir de los m\u00e9todos de diagn\u00f3stico utilizados se asignan los siguientes mecanismos de reacci\u00f3n: de activaci\u00f3n disociativa (id) para los compuestos de co(iii); de intercambio asociativo (ia) para los de cr(iii) y de intercambio puro, i, para los de rh(iii).  por otra parte, se estudian las reacciones ente el \u00e1cido ars\u00e9nico y los acuacomplejos. Las elevadas velocidades de reacci\u00f3n observadas permiten asegurar que el proceso de substituci\u00f3n tiene lugar sobre el \u00e1tomo de ars\u00e9nico y no sobre el metal de transici\u00f3n. El impedimento est\u00e9rico (r)5, tiene una importancia relativa debido a su distancia respecto al centro de reacci\u00f3n.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Factores est\u00e9ricos en reacciones de substituci\u00f3n con complejos aminados de metales de transici\u00f3n<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Factores est\u00e9ricos en reacciones de substituci\u00f3n con complejos aminados de metales de transici\u00f3n <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Elisa Rodr\u00edguez Frias <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/05\/2001<\/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>Guillermo Muller Jevenois<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: joan Ribas gispert <\/li>\n<li> Ubeda picot M\u00aa angeles (vocal)<\/li>\n<li>Juan  Carlos Bayon rueda (vocal)<\/li>\n<li>margarita Albert\u00ed wirsing (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Elisa Rodr\u00edguez Frias En este trabajo se realiza un estudio cin\u00e9tico de las reacciones de acuatizaci\u00f3n 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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