Results 41 to 50 of about 151,000 (163)

Differentiating between F and OH Ligands in Homologous Gold(III) Complexes beyond X‐Ray Crystallography

open access: yesEuropean Journal of Inorganic Chemistry, Volume 28, Issue 34, December 1, 2025.
A subtle hydrogen‐bonding lock enables the unequivocal structural differentiation between fluoride and hydroxide in the unusual couple of homologous organogold(III) complexes [PPh4][(CF3)3AuF] and [PPh4][(CF3)3Au(OH)] (see adjacent figure). The homologous fluoride and hydroxide complexes of gold(III) [PPh4][(CF3)3AuX] [X = F (1), OH (2)] have been ...
Alberto Pérez‐Bitrián   +5 more
wiley   +1 more source

Pyridyl-Thiourea Ruthenium and Osmium Complexes: Coordination of Ligand and Application as FLP Hydrogenation Catalysts

open access: yesMolecules
Pyridyl-thiourea complexes of formula [(Cym)MCl(κ2Npy,S-H2NNS)][SbF6] (Cym = η6-p-MeC6H4iPr; H2NNS = N-(p-tolyl)-N′-(2-pyridylmethyl)thiourea); M = Ru (1), Os (2)) were synthesized by reacting the corresponding metal dimers [{(Cym)MCl}2(μ-Cl)2] with ...
Alejandro Grasa   +4 more
doaj   +1 more source

Mesoporous niobium oxide for dehydration of D-xylose into furfural [PDF]

open access: yes, 2013
Se ha demostrado que el óxido de niobio mesoporoso es un catalizador eficaz para la deshidratación de D-xilosa a furfural, alcanzando una conversión del 92% y un rendimiento de furfural 49,3% a 170º C y 90 minutos.
García Sancho, Cristina   +6 more
core  

Plant functional traits shape the provision of ecosystem services to Indigenous communities in western Amazonia

open access: yesPeople and Nature, Volume 7, Issue 12, Page 3313-3329, December 2025.
Abstract Context. Exploring how Indigenous People interact with plants through their functional traits allows us to understand the ecological bases of plant selection. Functional traits can help explain why certain plants are consistently chosen for specific purposes across diverse cultural contexts.
Julia G. de Aledo   +16 more
wiley   +1 more source

Tratamiento de un Residuo Acuoso proveniente de una Industria Química productora de Laminas de Acrílico mediante adsorción en Columna [PDF]

open access: yes, 2013
En este trabajo se presenta el estudio del tratamiento de un residuo acuoso generado por una industria química que produce láminas de acrílico a partir de metacrilato de metilo; este residuo está constituido principalmente por ácido sulfúrico, amonio y ...
ALMAZAN SANCHEZ, PERLA TATIANA   +1 more
core  

Contrasting effects of vertebrate and invertebrate herbivores on leaf litter decomposition in terrestrial ecosystems: A meta‐analysis

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3372-3384, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivores influence litter quality, soil properties and decomposer communities, with cascading effects on litter decomposition. Vertebrate and invertebrate herbivores can affect decomposition through the same two pathways (litter quality‐ and soil‐mediated) but are ...
M. Paz Tapella   +4 more
wiley   +1 more source

Ligand‐Controlled Chemoselectivity in the Rhodium‐Catalyzed Synthesis of Pentafulvenes via (2 + 2 + 1) Alkyne Cyclotrimerization

open access: yesAngewandte Chemie, Volume 137, Issue 34, August 18, 2025.
Chemoselectivity Challenge: A precise catalyst design allows for chemoselectivity control over alkyne reactivity to yield pentafulvenes via (2 + 2 + 1) cyclotrimerization. Operative mechanism has been elucidated by means of stoichiometric and deuteration experiments, as well as DFT calculations.
Belinda Español‐Sánchez   +6 more
wiley   +2 more sources

New Organocatalytic Asymmetric Synthesis of Highly Substituted Chiral 2-Oxospiro-[indole-3,4′- (1′,4′-dihydropyridine)] Derivatives

open access: yesMolecules, 2015
Herein, we report our preliminary results concerning the first promising asymmetric synthesis of highly functionalized 2-oxospiro-[indole-3,4′-(1′,4′-dihydropyridine)] via the reaction of an enamine with isatylidene malononitrile derivatives in the ...
Fernando Auria-Luna   +4 more
doaj   +1 more source

Luminescence and Palladium: The Odd Couple

open access: yesMolecules, 2023
The synthesis, photophysical properties, and applications of highly fluorescent and phosphorescent palladium complexes are reviewed, covering the period 2018–2022.
David Dalmau, Esteban P. Urriolabeitia
doaj   +1 more source

Los pinceles de la química [PDF]

open access: yes, 2009
La química desarrolla un papel muy importante en diferentes campos de investigación. Normalmente cuando se habla de química la gente piensa en reacciones y síntesis de nuevos proyectos.
Díez Díez, G.   +2 more
core   +1 more source

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