Explanipedia

Derecho Internacional Humanitario y nuevas formas de violencia Open

Isabel Peña · 2025

El aprendizaje de la probabilidad y la estadística en la educación superior representa un desafío significativo para los estudiantes de primer año, especialmente en carreras de formación matemática. Este estudio tuvo como propósito diagnos…

Google Site como centro de recursos de gamificación para el aprendizaje asincrónico Open

Isabel Peña, Diana Carolina Cedeño Barragán, María Alejandrina Nivela Cornejo, César Montúfar · 2025

Introducción. La falta de energía eléctrica en países como Ecuador, dificulta la integración de herramientas educativas modernas, y perpetúa un ciclo de desventajas educativas. Estos cortes afectan la continuidad del aprendizaje, e inciden…

Titelbild: Alcohol Self‐Aggregation: the Preferred Configurations of the Ethanol Trimer (Angew. Chem. 12/2025) Open

S. Indira Murugachandran, Isabel Peña, Al Mokhtar Lamsabhi, Manuel Yáñez, M. Eugenia Sanz · 2025

Cover Picture: Alcohol Self‐Aggregation: the Preferred Configurations of the Ethanol Trimer (Angew. Chem. Int. Ed. 12/2025) Open

S. Indira Murugachandran, Isabel Peña, Al Mokhtar Lamsabhi, Manuel Yáñez, M. Eugenia Sanz · 2025

The large PAH sumanene: laboratory rotational spectroscopy and astronomical search Open

J. Roberto Moran, C. Cabezas, Fayaz Hussain, Cristóbal Pérez, J. Cernicharo , et al. · 2025

The recent interstellar detection of individual polycyclic aromatic hydrocarbons (PAHs) in the Taurus Molecular Cloud (TMC-1) brings with it interest in related species that could be present in this astronomical environment. The interstell…

Alcohol Self‐Aggregation: the Preferred Configurations of the Ethanol Trimer Open

S. Indira Murugachandran, Isabel Peña, Al Mokhtar Lamsabhi, Manuel Yáñez, M. Eugenia Sanz · 2024

An atomic‐level knowledge of the aggregation of archetypal molecular systems is essential to accurately model supramolecular structures and the transition from gas to liquid phase. The structures and forces involved in ethanol aggregation …

Alcohol Self‐Aggregation: the Preferred Configurations of the Ethanol Trimer Open

S. Indira Murugachandran, Isabel Peña, Al Mokhtar Lamsabhi, Manuel Yáñez, M. Eugenia Sanz · 2024

An atomic‐level knowledge of the aggregation of archetypal molecular systems is essential to accurately model supramolecular structures and the transition from gas to liquid phase. The structures and forces involved in ethanol aggregation …

Revealing the Structure of Sheer N-Acetylglucosamine, an Essential Chemical Scaffold in Glycobiology Open

Elena R. Alonso, Aran Insausti, Isabel Peña, Miguel Sanz‐Novo, Raúl Aguado , et al. · 2024

We explored the conformational landscape of N-acetyl-α-d-glucosamine (α-GlcNAc), a fundamental chemical scaffold in glycobiology. Solid samples were vaporized by laser ablation, expanded in a supersonic jet, and characterized by broadband …

Laboratory rotational spectroscopy and astronomical search of ethynyl substituted naphthalene Open

C. Cabezas, Isabel Peña, J. Cernicharo · 2022

The recent interstellar detection of cyanonaphthalenes brings interest in related aromatic molecular species that could be present in similar astronomical environments. In this context, ethynyl derivatives of naphthalene are promising cand…

Laboratory rotational spectroscopy and astronomical search of ethynyl substituted naphthalene Open

C. Cabezas, Isabel Peña, J. Cernicharo · 2022

The recent interstellar detection of cyanonaphthalenes bring interest in related aromatic molecular species that could be present in similar astronomical environments. In this context, ethynyl derivatives of naphthalene are promising candi…

An intragenic duplication withinSIRPβ1shows a dual effect over Alzheimer’s disease cognitive decline altering the microglial response Open

José María García‐Alberca, Itziar de Rojas, Elisabeth Sánchez‐Mejías, Diego Garrido-Martín, Laura Gonzalez-Palma , et al. · 2022

Microglia play an important role in the maintenance of brain homeostasis, and microglial dysfunction plays a causative role in Alzheimer disease pathogenesis. Here we focus on the signal regulatory protein SIRPβ1, a surface receptor expres…

MOLECULAR RECOGNITION IN OLFACTION: INTERACTIONS OF THE ODORANT CARVONE WITH ETHANOL Open

S. Murugachandran, M. Sanz, Isabel Peña, Donatella Loru · 2022

The Shapes of Sulfonamides: A Rotational Spectroscopy Study Open

Annalisa Vigorito, Camilla Calabrese, Assimo Maris, Donatella Loru, Isabel Peña , et al. · 2022

Benzenesulfonamides are a class of molecules of extreme interest in the biochemical field because many of them are active against a variety of diseases. In this work, the pharmacophoric group benzensulfonamide, its derivatives para-toluens…

Water binding to the atmospheric oxidation product methyl vinyl ketone Open

C. Cabezas, Marcos Juanes, Rizalina Tama Saragi, Alberto Lesarri, Isabel Peña · 2022

Methyl vinyl ketone is one of the major oxidation products of isoprene, and therefore, an important precursor of secondary organic aerosol. Understanding its interactions with water is relevant to gain insight into aerosol formation and im…

Rotational spectroscopy of the large saturated dinitriles hexanedinitrile and heptanedinitrile Open

C. Cabezas, Isabel Peña, Rizalina Tama Saragi, Marcos Juanes, Alberto Lesarri , et al. · 2022

Dinitriles with a saturated hydrocarbon skeleton and a -C≡N group at each end can have large electric dipole moments. Their formation can be related to highly reactive radicals such as CH₂CN, C₂N, or CN. Thus, these s…

THE SHAPES OF SULFONAMIDES: ROTATIONAL SPECTRA OF BENZENESULFONAMIDE, ortho-TOLUENSULFONAMIDE, para-TOLUENSULFONAMIDE AND SULFANILAMIDE Open

Sonia Melandri, Isabel Peña, Donatella Loru, M. Eugenia Sanz, Camilla Calabrese , et al. · 2021

The effects of substitution were investigated for the sulfonamides class of molecules, in particular those which contain the benzosulfonamide functional group. This group of molecules is of extreme interest in the biological field since ma…

ETHANOL TRIMER CONFIGURATIONS REVEALED BY CP-FTMW SPECTROSCOPY AND COMPUTATIONAL CALCULATIONS Open

S. Indira Murugachandran, M. Sanz, Manuel Yáñez, Al Mokhtar Lamsabhi, Isabel Peña · 2021

The study of hydrogen-bonded complexes in the gas phase aims to advance our knowledge of the intermolecular forces at play in these systems. To this end, ethanol clusters are of particular interest as archetypes of the interplay between hy…

Rotational spectrum and internal dynamics of the hydrogen-bonded pyrrole-pyridine aromatic pair Open

C. Cabezas, Isabel Peña, Walther Camináti · 2020

Rotational spectra of van der Waals complexes: pyrrole–Ne and pyrrole–Ne2 Open

Isabel Peña, C. Cabezas · 2020

Rotational spectra of van der Waals complexes pyrrole–Ne and pyrrole–Ne₂have been investigated by chirped pulse Fourier transform microwave spectroscopy in the 2–8 GHz frequency region.

The role of secondary interactions on the preferred conformers of the fenchone–ethanol complex Open

Donatella Loru, Isabel Peña, M. Eugenia Sanz · 2019

Three conformers of the complex formed between fenchone, a natural common odorant, and ethanol, a mimic of serine's side chain, have been identified using high resolution rotational spectroscopy. All conformers show a main O⋯H–O hydrogen b…

Laboratory rotational spectrum and astronomical search for methoxyacetaldehyde Open

Lucie Kolesníková, Isabel Peña, Elena R. Alonso, B. Tercero, J. Cernicharo , et al. · 2018

Context . Methoxyacetaldehyde belongs to a group of structural isomers with the general formula C 3 H 6 O 2 , of which methyl acetate and ethyl formate are known interstellar molecules. Rotational data available for methoxyacetaldehyde are…

The Multiple Hydrogen‐Bonding Networks of Polyol Ribitol Open

Isabel Peña, M. Eugenia Sanz, Elena R. Alonso, José L. Alonso · 2018

Conformational flexibility and non‐covalent interactions determine the structure and activity of molecules in biological processes. In this work, the hydrogen bonding networks of the polyol ribitol have been determined for the first time u…

ETHANOL DIMER: OBSERVATION OF THREE NEW CONFORMERS BY BROADBAND ROTATIONAL SPECTROSCOPY Open

Isabel Peña, M. Sanz, Donatella Loru · 2017

The conformational behaviour of the hydrogen-bonded cluster ethanol dimer has been reinvestigated by chirped pulse Fourier transform microwave spectroscopy in the 2-8 GHz frequency region. Three new conformers (${tt}$, ${tg}$+, and ${g}$-$…

Ethanol dimer: Observation of three new conformers by broadband rotational spectroscopy Open

Donatella Loru, Isabel Peña, M. Eugenia Sanz · 2017

The conformational behavior of the hydrogen-bonded cluster ethanol dimer has been reinvestigated by chirped pulse Fourier transform microwave spectroscopy in the 2–8 GHz frequency region. Three new conformers (tt, tg+, and g−g+) have been …

Inside Back Cover: Sweet Structural Signatures Unveiled in Ketohexoses (Chem. Eur. J. 47/2016) Open

Celina Bermúdez, Isabel Peña, Santiago Mata, José L. Alonso · 2016

Since early last century, abundant research has addressed the link between sweetness and the structure of sweeteners. A unified explanation of Shallenberger and Acree's states that the sweetener is bound to the sweet receptor by the “gluco…

HIGH-RESOLUTION ROTATIONAL SPECTRUM, DUNHAM COEFFICIENTS, AND POTENTIAL ENERGY FUNCTION OF NaCl Open

C. Cabezas, J. Cernicharo, G. Quintana-Lacaci, Isabel Peña, M. Agúndez , et al. · 2016

We report laboratory spectroscopy for the first time of the J = 1–0 and J = 2–1 lines of Na 35 Cl and Na 37 Cl in several vibrational states. The hyperfine structure has been resolved in both transitions for all vibrational levels, which p…

A rotating spiral structure in the innermost regions around IRC+10216 Open

G. Quintana-Lacaci, J. Cernicharo, M. Agúndez, L. Velilla Prieto, A. Castro‐Carrizo , et al. · 2016

ALMA interferometer is providing us molecular maps with unprecedent precision and sensitivity, Key processes in the ejection of matter and dust from these objects occur in their inner zones. We have obtained sub-arcsecond interferometric m…

H-BONDING NETWORKS IN SUGAR ALCOHOLS: IDENTIFYING GLUCOPHORES? Open

Elena R. Alonso, José Alonso, Isabel Peña, C. Cabezas, Santiago Mata · 2016

STRUCTURAL EXPRESSION OF EXO-ANOMERIC EFFECT Open

Elena R. Alonso, José Manuel Alonso Segura, C. Cabezas, Isabel Peña · 2016

Structural signatures for exo-anomeric\neffect have been extracted\nfrom the archetypal methyl-β-d-xyloside using broadband\nFourier transform microwave spectroscopy combined with laser ablation.\nSpectrum analysis allows the determination…

Structural Expression of Exo-Anomeric Effect Open

Elena R. Alonso, Isabel Peña, C. Cabezas, José L. Alonso · 2016

Structural signatures for exo-anomeric effect have been extracted from the archetypal methyl-β-D-xyloside using broadband Fourier transform microwave spectroscopy combined with laser ablation. Spectrum analysis allows the determination of …

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