{"id":16131,"date":"2018-03-09T09:03:36","date_gmt":"2018-03-09T09:03:36","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/compuestos-de-adicion-de-haluros-de-uranilo-con-ligandos-o-dadores-sa%c2%adntesis-caracterizacion-y-estudios-de-luminiscencia\/"},"modified":"2018-03-09T09:03:36","modified_gmt":"2018-03-09T09:03:36","slug":"compuestos-de-adicion-de-haluros-de-uranilo-con-ligandos-o-dadores-sa%c2%adntesis-caracterizacion-y-estudios-de-luminiscencia","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/compuestos-de-adicion-de-haluros-de-uranilo-con-ligandos-o-dadores-sa%c2%adntesis-caracterizacion-y-estudios-de-luminiscencia\/","title":{"rendered":"Compuestos de adici\u00f3n de haluros de uranilo con ligandos o-dadores. s\u00edntesis, caracterizaci\u00f3n y estudios de luminiscencia"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Miranda Gallego Mar\u00eda no Jos\u00e9 <\/strong><\/h2>\n<p>Se ha comprobado que disolviendo el acetato de uranilo en una mezcla de metanol y \u00e1cido hidr\u00e1cido se puede aislar el correspondiente haluro de uranilo eliminando el grupo acetato en forma de acetato de metilo en caliente seg\u00fan la siguiente reacci\u00f3n:  uo2(aco)2.2h2o + hx + meoh  uo2x2nh2o + acome  (x= cl, br)  a partir de esta disoluci\u00f3n se puede obtener una sal anhidra haci\u00e9ndola reaccionar con el ligando correspondientes, obteni\u00e9ndose complejos de simetr\u00eda octa\u00e9drica con los dos grupos oxo en trans respecto al plano xy y los ligandos enlazados al cati\u00f3n uranilo en la parte ecuatorial seg\u00fan la siguiente reacci\u00f3n en metanol:  uo2x2nh2o + 2l  uo2x2l2  se han aislado los siguientes compuestos con rendimientos superiores al 80% y pureza elevada todos ellos con simetr\u00eda trans-trans-uo2x2l2  uo2cl2(opph3)2;  uo2br2(opph3)2;  uo2cl2(hmpad)2;  uo2br2(hmpad)2;  uo2cl2(oasph3)2;  uo2br2(oasph3)2;  uo2cl2(tmepo)2;  uo2cl2(op(och2)3cch3)2; uo2br2(op(och2)3cch3)2.  se ha comprobado que en el caso del \u00f3xido de trifenilarsina ocurre un fen\u00f3meno de isomerizaci\u00f3n hasta ahora desconocido. En el caso del cloruro la presencia de agua oxigenada en el medio provoca la aparici\u00f3n de trans-cis- uo2cl2(oasph3)2 y en el caso de bromuros ocurre el mismo tipo de isomerizaci\u00f3n pero con la diferencia que dependiendo del disolvente utilizado se obtiene el is\u00f3mero trans en metanol y el is\u00f3mero cis en una mezcla metanol-agua. los complejos trans-trans uo2br2(oasph3)2 y trans-cis-uo2br2(oasph3)2. han sido caracterizados por difracci\u00f3n de rayos-x.  la preparaci\u00f3n de ioduros de uranilo tiene que seguir otra ruta puesto que al utilizar directamente el \u00e1cido iodh\u00eddrico se produce yodo en disoluci\u00f3n impurificando la mezcla. Se ha seguido la siguiente reacci\u00f3n:  uo2(aco)2.2h2o + hcl + meoh   uo2cl2nh2o + acome  uo2cl2nh2o + nal   uo2l2nh2o + nacl  uo2l2nh2o + 2l  uo2l2l2  (l = opph3, hmpad)  tambi\u00e9n se han realizado s\u00edntesis de compl<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Compuestos de adici\u00f3n de haluros de uranilo con ligandos o-dadores. s\u00edntesis, caracterizaci\u00f3n y estudios de luminiscencia<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Compuestos de adici\u00f3n de haluros de uranilo con ligandos o-dadores. s\u00edntesis, caracterizaci\u00f3n y estudios de luminiscencia <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Miranda Gallego Mar\u00eda no Jos\u00e9 <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Burgos<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 18\/03\/2002<\/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>Francisco Javier Arnaiz Garcia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: teofilo Rojo aparicio <\/li>\n<li>sebastian Bruque gamez (vocal)<\/li>\n<li>hugh Douglas burrows (vocal)<\/li>\n<li>Juan  Manuel Salas peregrin (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Miranda Gallego Mar\u00eda no Jos\u00e9 Se ha comprobado que disolviendo el acetato de uranilo en una mezcla [&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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