Listar QF - Contribuciones a congresos científicos por título
Mostrando ítems 1-20 de 110
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2D-Delocalized vs Confined Diradicals
(2019-07-17)Diradicals are beautiful chemical objects where the more basic and intricate aspects of the chemical bonding are revealed.1 Not this being important enough, nowadays, diradical-based substrates are becoming very appealing ... -
About Helices and Solvents: VCD and more
(2017-03-10)Intermolecular forces drive self-organization of molecules, which is ultimately the origin of most the physical and chemical phenomena in Nature. Molecules able to interact themselves by non-covalent forces, as hydrogen ... -
Analyzing thin film morphology by Resonance Raman spectroscopy
(2019-07-16)Polymeric organic thin film transistors (OFETs) and all-polymer bulk heterojunction solar cells (all-PCS), which are composed of a polymer donor and a polymer acceptor, have attracted considerable attention in the last ... -
Bases espectroscópicas de la relación estructura-carácter birradical-propiedad en sistemas proaromáticos pi-conjugados derivados de p-QDM
(2014-10-06)En esta comunicación se estudia, mediante diversos tipos de espectroscopias y haciendo hincapié en la espectroscopia Raman, el efecto que modificaciones estructurales como el aumento de la longitud de la cadena o la ... -
Benzotrithiophenes vs. Benzo/Naptha-dithiophenes: The Effect of Star-Shaped versus Linear Conjugation on Their Electronic Structures
(2015-07-30)Star-shaped complexes of π-conjugated chromophores are currently of great interest for use in optoelectronic devices.1 Recently, different planar central cores involving three thiophene rings fused to a benzenic ring (BTTs) ... -
Cálculos DFT en materiales orgánicos conjugados: importancia en el análisis de los datos experimentales
(2017-12-22)Actualmente, y cada vez con mayor intensidad, los materiales orgánicos policonjugados se están erigiendo como la alternativa ecológica real al uso de silicio en materiales para dispositivos electrónicos. Este hecho se debe ... -
Camouflaged Holes Assist Negative Charge Motion in Radical-Anion Molecular Wires
(2016-10-06)Charge transfer in molecular wires over varying distances is a subject of great interest in the field of molecular electronics. By increasing the distance between the electroactive centers, transport mechanisms generally ... -
Caracterización de sistemas basados en carbazol con transformación reversible entre birradical aislado y σ-agregados
(2017-07-03)El desarrollo de la química de moléculas orgánicas π-conjugadas que tienen una capa de valencia que no está completamente llena, también conocidas como sistemas de capa abierta, ha atraído mucho interés en estos últimos ... -
Carbazole-based biradicaloids as potential building blocks for dynamic covalent chemistry
(2018-12-18)Pi-conjugated biradical compounds become essential building blocks in DCC (dynamic covalent chemistry).1 This field is based on the creation of structural scaffolds based on chemical components which interact through strong ... -
Chameleon-like behaviour of cyclo[n]paraphenylenes in complexes with C70: on their impressive electronic and structural adaptability as probed by Raman spectroscopy
(2014-09-11)A series of four 1:1 host-guest supramolecular complexes of [n]CPPs and C70 have been analyzed by Raman spectroscopy in solid state and complemented with the analysis of their spectroscopic responses under mechanical and ... -
Charge transfer in the nanoscale and SERS: understanding the huge efficiency of the electrode potencial in tuning the CT states
(2014-09-10)This work deals with the unexplained efficiency of the electrode potential in tuning the energy of the CT states of hybrid systems formed by molecules and metallic nano structures. Huge energy gain up to 5eV/V observed in ... -
Charge Transfer mechanism in the Surface Enhanced Raman Scattering of 2,2'-bipyridine recorded on a silver electrode
(2018-07-17)Nowadays, Surface Enhanced Raman Spectroscopy (SERS) has become a powerful technique to investigate the electronic structure of surface-molecule hybrid systems due to the huge enhancement of the Raman signal. It is established ... -
Chiroptical Spectroscopy of C3 Molecules
(2016-04-22)The relevance of molecules with C3 symmetry comes from the fact of many of them, upon assembling as columnar helical macromolecules, are ideal platform for electro-optical devices, for example as liquid crystals. The ... -
Comparative study of different theoretical approaches for modeling the dependence of the SERS vibrational wavenumbers on the electrode potential
(2019-07-25)Surface-enhanced Raman scattering (SERS) is a powerful technique to study the electronic structure of charged metal-molecule interfaces, which are relevant in many fields like electrochemistry, heterogeneous catalysis or ... -
A computational study of the vibrationally-resolved electronic circular dichroism spectra of single-chain transoid and cisoid oligothiophenes in chiral conformations
(2019-07-19)Chiral polythiophenes (PTs) are interesting as organic electronics materials because of their optoelectronic properties, which may arise from ordered supramolecular packings. Chiroptical techniques like ECD can detect these ... -
Cyclic Triindoles and Tetraindoles: Substituent and Symmetry Effects on their Structural and Electronic Characteristics
(2016-10-07)During the last decade heptacyclic 10,15-dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole (triindole) has been extensively studied as a new π-conjugated platform in the construction of self-assembling materials for optoelectronics. ... -
Del estudio de la molécula al dispositivo
(2017-06-30)Los materiales orgánicos pi-conjugados han destacado en las últimas décadas como alternativas prometedores al silicio en su uso en dispositivos electrónicos, como por ejemplo transistores orgánicos de efecto campo (OFETs) ... -
La desnaturalización de una proteina globular por surfactantes es monotorizada por espectroscopia Raman quiral
(X Simposio de Investigadores Jóvenes, 2013)Desnaturalización de proteínas por surfactantes ha recibido una gran atencion los últimos años debido a sus implicaciones en productos farmacéuticos, cosméticos. A lo largo de esta comunicacion se demuestra la capacidad ... -
Detection of different species of p-aminothiophenol on silver nanoparticles by Surface-Enhanced Raman Spectroscopy (SERS)
(2018-04-06)In the present work we have analyzed the experimental and theoretical SERS spectra of the organic compound p-aminothiophenol (pATP, HS-Ph-NH2) recorded on silver nanoparticles. DFT calculations have been performed to support ... -
DFT study of the effect of the electrode potential on anchoring of metal-molecule hybrids
(2018-03-12)The impact of the molecular adsorption process on the electronic structure is the key in phenomena involved in electrochemistry, catalysis, molecular electronics, SERS, photoelectric conversion, etc. The effect of the ...