Results 51 to 60 of about 7,447 (129)

Nitrogen-Rich Multinuclear Ferrocenophanes as Multichannel Chemosensor Molecules for Transition and Heavy-Metal Cations

Sensors, 2014
[m.n] Multinuclear ferrocenophanes prepared by aza-Wittig reaction of bisiminophosphoranes derived from 1,1'-diazidoferrocene and isophthaladelhyde or 2,5-diformylthiophene, behave as efficient electrochemical and chromogenic chemosensor molecules for ...
Antonia Sola, Arturo Espinosa, Alberto Tárraga, Pedro Molina   +3 more
doaj   +1 more source

Decoding Heptazine Architectures: From Molecular Association to Structural Insight

Chemistry – A European Journal, Volume 32, Issue 38, 13 October 2026.
A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral, Daniel Barrena‐Espés, Julen Munarriz, Matthias Lehmann, Pilar Romero, José Luis Serrano   +5 more
wiley   +1 more source

Cytotoxic and Antitumor Activity of some Coumarin Derivatives

Natural Product Communications, 2016
Several natural and synthetic coumarins were assayed against different cancer cell lines. Four of them have shown cytotoxicity against a panel of three human solid tumor cell lines (HeLa, T-47D, and WiDr) and a clearly activity/hydrophobicity ...
Hugo A. Garro, Guillermo F. Reta, Osvaldo J. Donadel, Carlos R. Pungitore   +3 more
doaj   +1 more source

A New Approach to the Synthesis of Benzo[b]naphtho[2,3-b]furan-6,11-diones and 2-Benzyl-3-hydroxynaphthalene-1,4-diones

SynOpen, 2017
Here we describe modified syntheses of o-acetylbenzoic acids­ and o-acetylphenylacetic acids by Heck palladium-catalysed aryl­ation of n-butyl vinyl ether with o-iodobenzoic acids or with o-iodo­phenylacetic acids, respectively.
Jose C. Barcia, Jacobo Cruces, Cristian O. Salas, Juan C. Estévez, Mauricio A. Cuellar, Ricardo A. Tapia, Ramón J. Estévez   +6 more
doaj   +1 more source

SÍNTESIS DE MESO-TETRAFENILPORFIRINA Y SU COMPLEJACIÓN CON METALES USANDO QUÍMICA VERDE

Avances en Ciencias e Ingeniería, 2019
En este trabajo se describe la preparación del ligando meso-tetrafenilporfirina y de tres de sus complejos metálicos, preparados por reacción con sales de Ni(II), Cu(II) y Zn(II), mediante procedimientos sintéticos enmarcados en la llamada “Química Verde”
Sandra Rodríguez-Álvarez, José M. Palazón, Rosa L. Dorta   +2 more
doaj  

Nucleobase Stacking Sustained by Pt−Pt Interactions

ChemistryEurope
This article reports the use of metal–metal interactions as a way to induce nucleobase stacking in a dinucleotide chain. We synthetized and study a series of C,N‐cyclometallated platinum(II) binuclear complexes derived from 6‐phenylpurine dinucleotide 1 ...
Dr. Carmen Lorenzo‐Aparicio, Prof. Dr. Pablo García‐Álvarez, Prof. Dr. Javier A. Cabeza, Prof. Dr. Mar Gómez‐Gallego, Prof. Dr. Miguel A. Sierra   +4 more
doaj   +1 more source

PyOrbb—Automated Analyses of Orbital‐Interaction Mechanisms

Journal of Computational Chemistry, Volume 47, Issue 26, October 5, 2026.
PyOrbb is an open‐source program that automates fragment‐based orbital interaction analysis from ADF calculations. It identifies the chemically most significant attractive and repulsive interactions and presents them as publication‐ready MO diagrams.
Yuman Hordijk, Steven E. Beutick, Xiaobo Sun, Laurens Groot, Tori Gijzen, Jordi Poater, Trevor A. Hamlin, F. Matthias Bickelhaupt, Célia Fonseca Guerra   +8 more
wiley   +1 more source

Tunable Oxygen Connectivity in Carbaporphyrinoid Polymers on Metal Surfaces

Angewandte Chemie, Volume 138, Issue 40, 28 September 2026.
Hydroxyl‐functionalized dicarbaporphyrinoid polymers synthesized on Au(111) enable tunable oxygen‐mediated connectivity under UHV conditions. Thermal activation yields one‐dimensional hydroxyl‐terminated polymers that can selectively evolve into either covalently‐linked dibenzo‐p‐dioxane architectures through intermolecular C–O–C coupling or two‐fold ...
Alberto Martínez‐Bajo, Maxence Urbani, Ana Barragán, Óscar Jover, Elena Pérez‐Elvira, Ilaria Tomei, Claudio Goletti, Alejandro Jiménez‐Martín, Aurelio Gallardo, Koen Lauwaet, David Écija, Diego Soler‐Polo, Marco Di Giovannantonio, Tomás Torres, José I. Urgel   +14 more
wiley   +2 more sources

Flourensia fiebrigii (Asterales: Asteraceae), fuente de metabolitos antipatogénicos

Lilloa, 2011
Verni, Cecilia; Alva, Mariana; Muruaga, Nora; Borkosky, Susana; Car tagena, Elena; Bardón, Alicia. 2011. “Flourensia fiebrigii (Asterales: Asteraceae), fuente de metabolitos antipatogénicos”. Lilloa 48 (1).
Cecilia Verni, Mariana Alva, Nora Muruaga, Silvana Borkosky, Elena Cartagena, Alicia Bardón   +5 more
doaj  

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

Advanced Science, Volume 13, Issue 55, 5 October 2026.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas, Anh Tuan Ngo, João Pedro Vale, Ona Falcó, Gerard Martí, Mohamed Amazian, Júlia Mayans, Sònia Estradé, Marcos Gil‐Sepulcre, Teresa Andreu, Francesca Peiró, Tiago Sotto Mayor, Lluís Yedra, Jordi García‐Antón, Josep Puigmartí‐Luis, Xavier Sala, Roc Matheu   +16 more
wiley   +1 more source