Profundización en metodologías y espacios docentes innovadores

Fac. de FilologíaFALSEsubmitte

Meeting Point: methods and spaces for the flipped classroom

Desarrollo de programas formativos centrados en los estudiantes gracias a la mejora de la calidad de los recursos materiales y del personal docente e investigador.Vicerrectorado de CalidadFac. de FilologíaFALSEsubmitte

MAÍZ: Campaña 2003

En la campaña 2003 se han cultivado en Navarra alrededor de 16.200 hectáreas de maíz grano, lo que ha supuesto recuperar parte de la superficie no sembrada el año anterior. Esta superficie hace del maíz el cultivo más representativo de los regadíos de Navarra. Su interés para esta zona le viene no sólo por su representatividad, sino también porque tiene un gran potencial productivo y un importante dinamismo en cuanto a material vegetal y nuevas variedades que emergen al mercado. Es por ello que desde el ITG Agrícola se llevan a cabo diversas experiencias a fin de conocer y poder evaluar este nuevo material que se presenta ante el agricultor, intentando a través de los resultados de los ensayos y la publicación de este artículo, el hacer una recomendación seria y fiable que ayude a los cultivadores de maíz a tomar una decisión acertada que redunde en el mejor resultado de su explotación

C-NH2 bond formation mediated by iridium complexes

In the presence of phosphanes (PR3), the amido-bridged trinuclear complex [{Ir(μ-NH2)(tfbb)}3] (tfbb=tetrafluorobenzobarrelene) transforms into mononuclear discrete compounds [Ir(1,2-η2-4-κ-C12H8F 4N)(PR3)3], which are the products of the C-N coupling between the amido moiety and a vinylic carbon of the diolefin. An alternative synthetic approach to these species involves the reaction of the 18-e- complex [Ir(Cl)(tfbb)(PMePh2)2] with gaseous ammonia and additional phosphane. DFT studies show that both transformations occur through nucleophilic attack. In the first case the amido moiety attacks a diolefin coordinated to a neighboring molecule following a bimolecular mechanism induced by the highly basic NH2 moiety; the second pathway involves a direct nucleophilic attack of ammonia to a coordinated tfbb molecule.Financial support from project CTQ2012-35665, the CONSOLIDER INGENIO-2010 program under the projects MULTICAT (CSD2009-00050), the Factoría de Cristalización (CSD2006-0015), and the DGA-FSE are acknowledged.Peer Reviewe

Di-μ-methano-lato-bis-[( 4-tetra-fluoro-benzobarrelene) rhodium(I)]

The versatile synthetic precursor methano-late-bridged title rhodium complex, [Rh 2(CH 3O) 2(C 12H 6F 4) 2] or [Rh(-OCH 3)(tfbb)]2 [tfbb = tetra-fluoro-benzobarrelene or 3,4,5,6-tetra-fluoro-tricyclo-[6.2.2.0 2,7]dodeca-2(7),3,5,9,11-penta-ene], has been structurally characterized. The asymmetric unit contains half a mol-ecule that can be expanded via a twofold axis. The title compound has been shown to be a dinuclear rhodium complex where each metal centre is coordinated by two O atoms from two bridging methano-late groups and by the olefinic bonds of a tfbb ligand. Comparison of the bite angles of tfbb, norbornadiene (nbd) and cyclo-octa-diene (cod) olefins in their 4-coordination to rhodium reveals similarities between the tfbb and nbd ligands, which are much more rigid than cod. The short distance found between the distorted square-planar metal centres [2.8351 (4) Å] has been related to the syn conformation of the folded core RhORhO ring. © 2012 International Union of Crystallography.This work is supported by CONSOLIDER INGENIO-2010 program under the projects MULTICAT (CSD2009–00050) and Factoría de Cristalización (CSD2006–0015). PGO acknowledges financial support from the CSIC 'JAE-Doc' program, co-funded by the ESF.Peer Reviewe

Direct access to parent amido complexes of rhodium and iridium through N-H activation of ammonia

Simplicity! A direct entry to amido rhodium and iridium complexes was easily achieved by reaction of gaseous ammonia with alkoxo-bridged precursors under very mild conditions. This new approach allowed the high-yield access for the first time to elusive [Rh-NH 2] complexes. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Financial support from CONSOLIDER INGENIO-2010 program under the projects MULTICAT (CSD2009-00050) and Factoría de Cristalización (CSD2006-0015). P.G.O. acknowledges financial support from the CSIC “JAE-Doc” program.Peer Reviewe