Listar QF - Contribuciones a congresos científicos por título
Mostrando ítems 25-44 de 124
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Effect of different excitation wavelength on SERS spectra of pyridine
(2018-05-14)SERS spectra of pyridine has been already recorded on a silver electrode in a potential range from 0.0 to -1.40 V with a saline solution, pyridine / KCl (0.1M / 0.1M), by using the 514.5 nm exciting line. Under these ... -
Effect of graphene substrate on the SERS Spectra of Aromatic bifunctional molecules on metal nanoparticles
(2016-06-27)The design of molecular sensors plays a very important role within nanotechnology and especially in the development of different devices for biomedical applications. Biosensors can be classified according to various ... -
Effect of the electrode potential on surface-enhanced Raman intensities of 2-methylpyrazine
(2014-05-30)The effect of the electrode potential on Surface Enhanced Raman Scattering (SERS) intensities of 2-methylpyrazine (2MP) recorded under resonant charge transfer (CT) conditions is analyzed by using a simple theoretical model ... -
Elaboración de material mutimedia y uso de un entorno virtual en el proceso de enseñanza-aprendizaje de las prácticas de laboratorio en Química Física
(2017-06-16)Haciendo uso de las nuevas tecnologías, como es la plataforma educativa Moodle, se ha desarrollado una nueva estrategia didáctica más activa y dinámica en la impartición de las prácticas de laboratorio en asignaturas ... -
Elaboración de pruebas de conocimiento en un entorno virtual como método de evaluación continua
(2015-06-22)Se ha realizado una serie de pruebas de conocimiento o cuestionarios, dentro de la plataforma Moodle, como método de evaluación continua de la asignatura de Química Física General que se imparte en el primer curso del Grado ... -
Elaboración de rúbricas de evaluación y revisión del repositorio de Prácticas de Laboratorio del Área de Química
(2019-06-18)Las asignaturas del área de Química que contienen una parte importante de Prácticas de Laboratorio, como las que se pueden encontrar fácilmente en los Grados de Ciencias Experimentales, son el foco de atención de esta ... -
Electrochemical SERS spectra of isonicotinic acid analyzed under a photoinduced charge-transfer mechanism
(2014-05-28)Isonicotinic (IN) acid is one of the three monocarboxilic derivatives of pyridine in which the acid group is located in para-position of the heterocyclic ring. It is a weak acid (pK2=4.86) and therefore, it is not completely ... -
Electronic properties of Naphthalimide derivatives
(2021-12)Molecular systems have proven to be efficient active materials in electronics, making then suitable substitutes of the inorganic semiconductors used nowadays in electronic devices. For this reason, organic electronics has ... -
Estudio de estados excitados y deslocaclización de carga en oligotiofenos ramificados
(2013-07-30)Los politiofenos ramificados tridimensionales (3D) y oligotiofenos dendriméricos han sido recientemente desarrollados en la búsqueda de mejoras en los materiales para aplicaciones fotovoltaicas (por ejemplo, un mayor área ... -
Estudio del efecto fotocrómico reversible de un sistema quinoide basado en carbazol
(2017-07-03)Hoy en día, el uso de materiales de naturaleza orgánica se presenta como un recurso ecológico y asequible para el diseño de dispositivos electrónicos. Entre ellos, los materiales sensibles a estímulos tienen además numerosas ... -
Evaluating the Role of Intermolecular Interactions in pi-conjugated Materials: What can we learn from DFT calculations and Raman Spectroscopy
(2019-05-29)For practical applications in sensors, dynamic covalent chemistry and molecular (photochromic) switches, soft conjugated materials can be envisaged as promising functional materials.1 To advance in this research field, ... -
Exploring the regioselectivity for the cycloaddition of azides to alkynes catalyzed by dinuclear copper clusters (Cu2AAC) with the topology of 2rho(r) and 2rho(r)
(2015-06-16)This study constitutes an extension of a previous research on the regioselectivity of the copper catalyzed cycloaddition of azides to alkynes (1) (the CuAAC reaction) by Quantum Chemical Topological methods. In particular, ... -
Formation of stimuli-responsive cyclophanes by self-assembly: the case of carbazole-based biradicals
(2019-01-16)Dynamic covalent bonds has recently received lot of attention because of their unique feature to become reversible under mild conditions.[1] In this context, π-conjugated biradical compounds has emerged as essential building ... -
Frequency shift on the potential-dependent surface-enhanced Raman scattering of pyridine: simplified models for metal and solvent effects
(2018-07-18)The electronic structure of adsorbates is altered when it interacts with a surface, modifying the properties of both entities and giving rise to interesting phenomena related to heterogeneous catalysis or molecular ... -
Fundamentals and Applications of Surface-Enhanced Raman Spectroscopy (SERS)
(2019-05-16)When a molecule is adsorbed on some metallic nanostructured surfaces such as silver, copper or gold, it can undergo an enormous enhancement of the Raman signal giving rise to the so called Surface-Enhanced Raman Scattering ... -
Fused Quinoidal Oligothiophenes Imides with High Electrical Conductivity
(2020-01-29)Organic diradicals are molecules containing two unpaired electrons, which are usually highly reactive.1-2 Although these organic diradicals present a wide range of potential applications, their air stability still remains ... -
Highly effective SERS nanopattern substrate. The enhancement is demonstrated using thiophenol as a molecular probe
(2014-07-31)The number of different types of Surface-enhanced Raman Scattering (SERS) substrates available for experimentation is increasing at high speed. New alternatives are introduced and explored every year in the literature ... -
Impact of the dicyanomethylene substitution position on the cyclophane macrocycle formation in carbazole-based biradicals
(2019-01-16)π-Conjugated biradical compounds, featuring unique unsaturated valences and radical centers in the ground state, are fundamentally important for understanding the nature of chemical bonds and have potential applications ... -
Impact of the Intermolecular Interactions on the Electronic and Charge-Transport Properties of Organic Materials: A Joint Experimental and Theoretical Approach
(2018-01-15)The use of organic materials to design electronic devices has actually presented a broad interest because they constitute an ecological and suitable resource for our current "electronic world". These materials provide ... -
Improved prediction of the optical properties in pi-conjugated polymers: the case of benzochalcogenodiazole-based copolymers with different heteroatom substitution
(2019-01-16)Donor−acceptor (D−A) approach to conjugated polymer design has become a widely used method for preparing conjugated polymers with narrow band gaps.1 One outstanding D−A polymer is poly(cyclopentadithiophene)benzothiadiazole, ...