Now showing items 128-141 of 141

    Study of the ability of carboranylcarboxylate ligands to generate polynuclear compounds. Potential applications 

    Fontanet Cepeda, Mònica (Date of defense: 2013-11-22)

    In this thesis is presented the synthesis and characterization of two different carboranylcarboxylate ligands, 1-CH3-2-CO2H-1,2-closo-C2B10H10 and 1-CO2H-1,2-closo-C2B10H11, in which the methyl group bonded to the carbon ...

    Supramolecular nanocapsules as platforms for molecular recognition and reactivity in confined spaces 

    Fuertes Espinosa, Carles (Date of defense: 2020-07-23)

    The use of self-assembly to bring simple building blocks together into complex product, has led to the preparation of an increasing number of sophisticated and functional 3D supramolecular nanocapsules. By understanding ...

    Synthesis and applications of large supramolecular nanocapsules: matryoshka-type masks, higher fullerene C84 purification and stabilization of metallic clusters and sub-nanoparticles 

    Ubasart Clarà, Ernest (Date of defense: 2022-10-28)

    The development of supramolecular assemblies with big cavities is important to recognize specific guests or infer a chemo- or regioselective chemistry, in analogy to natural enzymes. The objective of this thesis was to ...

    Synthesis and evaluation of cyclic cationic peptides as antimicrobial agents for use in plant protection 

    Monroc, Sylvie (Date of defense: 2008-01-18)

    Aquesta tesi doctoral se centra en l'estudi de l'aplicació de pèptids antimicrobians en la lluita contra agents patògens de cultius de plantes d'interès econòmic.L'estratègia sintètica s'ha portat a terme utilitzant ...

    Synthesis of antimicrobial peptides derived from BP100 and BPC194 

    Güell Costa, Imma (Date of defense: 2012-01-27)

    In the present PhD thesis we studied the solid-phase peptide synthesis of antimicrobial peptides derived from the lead peptides BP100 and BPC194. First, peptides derived from BP100 containing D-amino acids at different ...

    Synthesis of unusual alpha-amino acids and study of the effect of their incorporation into antimicrobial peptides. Total synthesis of biactive marine natural products and analogues thereof 

    El Marrouni El Ghazaoui, Abdellatif (Date of defense: 2012-04-13)

    The principle theme of this thesis was the synthesis of bioactive compounds. To this end, this work was focus on two main projects. The first one, which was carried out in the Department of Chemistry of the University of ...

    Synthesis, structure and reactivity of novel CuI, CuII and CuIII complexes containing triaza and hexaaza macrocyclic ligands 

    Ribas Salamaña, Xavi (Date of defense: 2001-12-17)

    El treball de tesi s'emmarca dins del camp de la bioinorgànica, disciplina que estudia les propietats estructurals i de reactivitat dels centres actius dels enzims, servint-se de models síntètics de baix pes molecular per ...

    Target analysis and suspect screening of wastewater derived contaminants in receiving riverine and coastal areas and assessment of environmental risks 

    Čelić, Mira (Date of defense: 2020-12-15)

    The main objective of this thesis is to evaluate the impact of wastewater discharges on receiving riverine and coastal ecosystems by studying the occurrence and fate of emerging contaminants (ECs). Since there is a myriad ...

    Tensioactius aniònics aplicats al destintatge per flotació de barreges de paper premsa i revista 

    Vilaseca Morera, Fabiola (Date of defense: 2000-03-08)

    El trabajo presentado se enmarca en el estudio del destintado de papeles viejos con un fuerte contenido en pasta mecánica y con una composición de partida del 60% de papel de periódico y un 40% de paper revista. Se somete ...

    Theoretical study of reactivity and dynamics of hybride-bridged diruthenium complexes and silylium 

    Tussupbayev, Samat (Date of defense: 2009-02-26)

    Esta tesis presenta un estudio computacional de los sistemas con hidruros puente. En la primera parte se estudia la química de complejos de dirutenio con cuatro hidruros puente. Esto incluye las siguientes reacciones: el ...

    Theoretical study of water oxidation and reduction mechanisms by aminopyridine first row transition metal catalysts 

    Acuña-Parés, Ferran (Date of defense: 2016-07-20)

    One of the major current scientific goals is the development of renewable energy sources. An effective alternative to fossil fuels consists in the conversion of the sunlight energy into chemical fuels. The molecular hydrogen ...

    Transition metal-catalysed [2+2+2] cycloaddition reactions. Methodology and mechanism 

    Parera Briansó, Magda (Date of defense: 2014-05-20)

    The transition-metal catalysed [2+2+2] cycloaddition reaction is a highly efficient synthetic tool that allows six-membered polysubstituted carbo- and heterocyclic derivatives to be obtained in an atom economy process. ...

    Understanding C-H oxidation and amination reactions performed by late first-row transition metals: trapping high-valent metal-O/N species 

    Corona Prieto, Teresa (Date of defense: 2017-02-17)

    The transformation of C-H bonds into C-O/N bonds is a process of interest in organic synthesis, but controlling the reactivity and selectivity among the multiple C-H bonds existing in most molecules is a challenging task. ...

    Utilització de suports polimèrics en processos de separació de metalls valuosos. Aplicacions hidrometal.lúrgiques i analítiques 

    Iglesias Juncà, Mònica (Date of defense: 2000-03-03)

    The present study focuses on the characterization of solid-liquid extraction techniques for the separation and preconcentration of rare-earth elements and precious metals. We developed an impregnated resin with di ...