Constanza Ruiz

Instituto de Ciencia de Materiales de Madrid

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Berta Gómez‐Lor

Instituto de Ciencia de Materiales de Madrid

Enrique Gutiérrez‐Puebla

Instituto de Ciencia de Materiales de Madrid

Marcelo Echeverri

Instituto de Ciencia de Materiales de Madrid

M. Carmen Ruiz Delgado

Universidad de Málaga

ÁM

Ángeles Monge

Consejo Superior de Investigaciones Científicas

Irene Martín

Instituto de Química Orgánica General

José Luís Serrano

Universidad de Zaragoza

Juan T. López Navarrete

University of Asia and the Pacific

Sergio Gámez‐Valenzuela

Universidad de Málaga

Eva M. García‐Frutos

Instituto de Ciencia de Materiales de Madrid

Cooperative Institutions

Instituto de Ciencia de Materiales de Madrid

Consejo Superior de Investigaciones Científicas

Universidad de Málaga

Universidad Autónoma de Madrid

Universidad de Zaragoza

Instituto de Ciencia de Materiales de Sevilla

Universidad Rey Juan Carlos

Universidad Complutense de Madrid

University of Calabria

Centro Médico Sanitas Málaga

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Star-shaped hexaaryltriindoles small molecules: Tuning molecular properties towards solution processed organic light emitting devices

Organic Electronics (2012)

C. Coya Constanza Ruiz A.L. Álvarez S. Álvarez‐García Eva M. García‐Frutos

Electron Mobility

Acceptor

Organic Electronics

Electron acceptor

10.1016/j.orgel.2012.06.018

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Citations (19)

Análisis del entorno personal de aprendizaje para la mejora de la competencia digital docente

Bordón Revista de Pedagogía (2023)

Constanza Ruiz Miguel Ángel Ruiz Domínguez

INTRODUCCIÓN. El objetivo de este trabajo es analizar el entorno personal de aprendizaje (PLE, por sus siglas en inglés de Personal Learning Environment) de los docentes, como espacio vinculado con la web 2.0, y que permite crear, organizar y compartir contenido, así como participar en la generación de conocimiento colectivo y vincularlo con la necesidad del desarrollo de la competencia digital docente. Para ello, se ha elaborado un cuestionario en el que se han integrado las tres dimensiones que componen los PLE. La 1.ª dimensión: accesibilidad a la información; la 2.ª dimensión: desarrollo y reflexión; y la 3.ª dimensión: compartir y colaborar, vinculando esta última con la red personal de aprendizaje (PLN, por sus siglas en inglés Personal Learning Network). MÉTODO. La investigación ha sido desarrollada tomando como muestra los datos de 379 profesores y profesoras de diferentes países que trabajan en distintas etapas educativas. Se trata de un estudio transversal y de alcance exploratorio, que utiliza una metodología cuantitativa de tipo descriptivo y correlacional. RESULTADOS. Los resultados demuestran que, de forma general, los docentes comúnmente hacen uso de las tecnologías para acceder a fuentes de información, así como de las tecnologías de información y comunicación (TIC) para desarrollar procesos de análisis y reflexión acerca de su labor docente y del proceso de aprendizaje del alumnado. No obstante, los resultados del estudio no muestran datos alentadores en cuanto al desarrollo de un PLN que les permita el compartir y colaborar en red. DISCUSIÓN. Se extrae como conclusión de la investigación la necesidad de un cambio de paradigma en donde la competencia digital docente permita el desarrollo profesional del profesorado en la creación de escenarios de colaboración y creación en la red.

10.13042/bordon.2023.97841

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Fluorescent and Electroactive Monoalkyl BTD-Based Liquid Crystals with Tunable Self-Assembling and Electronic Properties

ACS Omega (2018)

Marcelo Echeverri Irene Martín Alberto Concellón Constanza Ruiz María San Anselmo

We report here on a series of redox active benzothiadiazole-based luminophores functionalized on one edge with a phenyl-nonyl substituent, which confers these molecules a rodlike shape and a tendency to self-assemble into layered superstructures. On the other edge, the molecules are endowed with different p-substituted phenyl rings, which allows the modulation of their redox and optical properties on the basis of the electronic nature of the terminal substituents. We have found that just one lateral alkyl chain is sufficient to induce mesomorphism in these molecules, which present nematic or smectic mesophases upon thermal treatment. Single-crystal analysis allows us to get an insight into the nature of the forces responsible for different supramolecular assemblies in these derivatives, and point to a strong contribution of the terminal groups in the different arrangements observed. The interesting redox and optical properties together with their self-assembling tendencies render these new materials interesting candidates for optoelectronics.

10.1021/acsomega.8b01696

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Citations (19)

CCDC 1536461: Experimental Crystal Structure Determination

The Cambridge Structural Database (2020)

Marcelo Echeverri Constanza Ruiz Sergio Gámez‐Valenzuela Irene Martín M. Carmen Ruiz Delgado

10.5517/ccdc.csd.cc1nkt89

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Solution-processedN-trialkylated triindoles for organic field effect transistors

Journal of Materials Chemistry C (2017)

Constanza Ruiz Iratxe Arrechea‐Marcos Angela Benito-Hernández Enrique Gutiérrez‐Puebla Ángeles Monge

Self-assembly ofN-alkyl triindoles driven by CH–π interactions gives rise to highly aligned films successfully incorporated into solution-processed OFETs.

10.1039/c7tc03866f

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Citations (19)

Cyclic Triindoles and Tetraindoles: Substituent and Symmetry Effects on their Structural and Electronic Characteristics

María del Carmen Ruíz-Delgado Constanza Ruiz Juan T. López Navarrete Berta Gómez‐Lor

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CCDC 2074632: Experimental Crystal Structure Determination

The Cambridge Structural Database (2021)

Marcelo Echeverri Constanza Ruiz Berta Gómez‐Lor

10.5517/ccdc.csd.cc27mtmb

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CCDC 1834993: Experimental Crystal Structure Determination

The Cambridge Structural Database (2018)

Marcelo Echeverri Irene Martín Alberto Concellón Constanza Ruiz María San Anselmo

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1zlgbc

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Mobility versus Alignment of a Semiconducting π-Extended Discotic Liquid-Crystalline Triindole

ACS Applied Materials & Interfaces (2016)

Constanza Ruiz Upendra Kumar Pandey Roberto Termine Eva M. García‐Frutos Guzmán López-Espejo

The p-type semiconducting properties of a triphenylene-fused triindole mesogen, have been studied by applying two complementary methods which have different alignment requirements. The attachment of only three flexible alkyl chains to the nitrogen atoms of this π-extended core is sufficient to induce columnar mesomorphism. High hole mobility values (0.65 cm2 V-1 s-1) have been estimated by space-charge limited current (SCLC) measurements in a diode-like structure which are easily prepared from the melt, rendering this material a good candidate for OPVs and OLEDs devices. The mobility predicted theoretically via a hole-hopping mechanism is in very good agreement with the experimental values determined at the SCLC regime. On the other hand the hole mobility determined on solution processed thin film transistors (OFETs) is significantly lower, which can be rationalized by the high tendency of these large molecules to align on surfaces with their extended π-conjugated core parallel to the substrate as demonstrated by SERS. Despite the differences obtained with the two methods, the acceptable performance found on OFETs fabricated by simple drop-casting processing of such an enlarged aromatic core is remarkable and suggests facile hopping between neighboring molecular columns owing to the large conducting/isolating ratio found in this discotic compound.

Discotic liquid crystal

10.1021/acsami.6b06241

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Citations (37)

Saddle‐Shaped Cyclic Indole Tetramers: 3D Electroactive Molecules

Chemistry - A European Journal (2016)

Constanza Ruiz Ángeles Monge Enrique Gutiérrez‐Puebla Ibón Alkorta José Elguero

We present a joint theoretical and experimental study of a series of cyclic indole tetramers aimed at understanding the fundamental electronic properties of this 3D platform and evaluating its potential in the construction of new semiconductors. To this end, we combined absorption and Raman spectroscopy, cyclic voltammetry, and spectroelectrochemistry with DFT calculations. Our results suggest that this platform can be easily and reversibly oxidized. Additionally, it has a HOMO that matches very well with the workfunction of gold, therefore charge injection from a gold electrode is expected to occur without significant barriers. Interestingly, the cyclic tetraindoles allow for good electron delocalization in spite of their saddle-shaped structures. The steric constraints introduced by N-substitution significantly inhibits ring inversion of the central cyclooctatetraene unit, whereas it only barely affects the optical and electrochemical properties (a slightly higher oxidation potential and a blueshifted absorption upon alkylation are observed).

Cyclooctatetraene

SN2 reaction

10.1002/chem.201600932

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Citations (8)