Universitat de Girona
Now showing items 61-80 of 155
ENG- In the early 20th century, the development of quantum mechanics laid the groundwork for analysing the mechanisms underlying chemical processes. Today, studying the mechanism of a reaction allows for intervention in ...
Les malalties causades per bacteris i fongs són responsables d’importants pèrdues econòmiques en cultius. Es considera que els pèptids antimicrobians, naturals i sintètics, són uns bons candidats per a ser utilitzats com ...
High pressure processing is a food preservation technique which can be an alternative to heat treatment. Pressurization, in theory, produces changes in organoleptic properties and antioxidant compounds to a lesser extent. ...
Aromaticity is a key concept in chemistry, used by chemists to explain the structure, stability, and reactivity of many compounds. Aromatic compounds are present in industrial processes as well as in living systems. ...
Enzymes have evolved through years until becoming great catalysts that present high selectivity, specificity, and activity. Initially, enzymes were understood as static (bio)molecular structures capable of accelerating ...
The oxidative activation of C(sp3)–H bonds under ambient conditions represents a challenge to modern chemistry, nevertheless it is commonly operated in Nature by various oxygenases in key metabolic transformation and ...
La tesis tracta diferents aspectes relacionats amb el càlcul de la semblança quàntica, així com la seva aplicació en la racionalització i predicció de l'activitat de fàrmacs. Es poden destacar dos progressos importants en ...
La memòria consisteix en l'estudi de la complexació del Fe3+ i de l'AI3+ per fosfats i lligands orgànics carboxílics (PBTC) en un medi iònic 0.5 M en NaNO3 i una posterior aplicació dels resultats obtinguda a la caracterització ...
Gran part del districte miner Cartagena-La Unión es troba ocupat per residus provinents d'activitats mineres actualment abandonades. Aquestes activitats, desenvolupades històricament en les muntanyes situades en la costa ...
En el presente trabajo de tesis se evalúa la posible contribución de otros compuestos al desarrollo del olor sexual mediante la aplicación de técnicas de Head Space dinámico y cromatografía de filtración de gel. El estudio ...
Aromaticity is a widely used concept in the prediction, design, and understanding of key aspects related to reactivity, structure, and properties of molecules. Linked to cyclic or three-dimensional molecular systems, it ...
One of the primary objectives in organic synthesis is to devise novel methods for converting simple and readily available compounds into more complex and functionalized structures. In this regard, transition metal-catalyzed ...
ENG- Fullerenes are spherical carbon allotropes formed by an even number of carbon atoms organized in twelve pentagons and a variable number of hexagons, being C60 and C70 the two most widely known fullerenes of this family ...
In the last decades, carbenes have shown a huge potential and versatility in organometallic and organic chemistry. In each of these fields, first row transition metal chemistry is less developed than noble metal complexes. ...
La present tesi, tot i que emmarcada dins de la teoria de les Mesures Semblança Molecular Quántica (MQSM), es deriva en tres àmbits clarament definits:<br/>- La creació de Contorns Moleculars de IsoDensitat Electrònica ...
Homogeneous reactions catalyzed by gold have mainly been developed in the past two decades, stemming from the proneness of Au(I) and Au(III) complexes to coordinate and activate carbon-carbon multiple bonds towards a ...
Most of the different homogeneous reactions catalyzed by gold have been developed in the past fifteen years and stem from the ability of both Au(I) and Au(III) complexes to coordinate and activate multiple carbon-carbon ...
In this work we have prepared octahedral non - heme iron species in high oxidation states. Iron (IV) - oxo and iron (IV) - imido complexes based on triazacyclononane scaffold had been synthesised and all of them had been ...
Extensive amounts of pharmaceuticals and personal care products (organic emerging pollutants) are introduced into the environment mainly through wastewater treatment plants discharges either effluent wastewater reaching ...
Most of the organic molecules used in chemical industry (and their synthetic precursors) contain oxygen atoms in their structure. One of the most convenient methods for the preparation of oxygenated compounds is the ...
