Results 201 to 210 of about 115,739 (285)

XXIV JORNADAS CHILENAS DE QUIMICA

Boletín de la Sociedad Chilena de Química, 2001
openaire   +2 more sources

Electrochemical Water Oxidation Mechanisms Involving Macrocyclic Copper(II) Complexes: Ligand Ring Size Effects on Catalytic Cycles

ChemPhysChem, EarlyView.
The ring size of the ligand strongly influences electronic properties, steric effects, and coordination modes of key intermediates. Both catalysts show similar energy barriers for OO bond formation, but [Cu(12‐TMC)]2+ exhibits more complex mechanisms due to ligand reorganization.
João Pedro C. S. Neves, Roberto Rivelino, Tiago Vinicius Alves, Vitor H. Menezes da Silva   +3 more
wiley   +1 more source

Revista de Química: Volumen XXI –20 años de publicación continua

Revista de Química, 2007
Revista de Química Revista de Química
doaj  

Poly(Ionic) Liquid‐Enhanced Ion Dynamics in Cellulose‐Derived Gel Polymer Electrolytes

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Advancing Energy Storage: Gel Polymer Electrolytes with Promising Potential Gel polymer electrolytes (GPEs) incorporating methyl cellulose and a range of ionic/polymeric achieved Li+ transference numbers comparable to traditional liquid electrolytes.
Tiago G. Paiva, Maykel Klem, Sara L. Silvestre, João Coelho, Neri Alves, Elvira Fortunato, Eurico J. Cabrita, Marta C. Corvo   +7 more
wiley   +1 more source

From Euphoria to Cardiac Stress: Role of Oxidative Stress on the Cardiotoxicity of Methylone and 3,4-DMMC. [PDF]

Toxics
Moreira M, Rocha V, Araújo AM, Carvalho M.   +3 more
europepmc   +1 more source

Identification and Structural Elucidation of a New Synthetic Cannabinoid, MDMB‐5′Br‐PINACA, in Seized Herbal Materials

Drug Testing and Analysis, EarlyView.
MDMB‐5Br‐PINACA, a novel synthetic cannabinoid, was identified and structurally characterized in seized herbal products using GC‐MS, LC‐HRMS, and NMR. The discovery underscores ongoing diversification of SCs and the need for vigilant surveillance.
Alexandre Barcia de Godoi, Lucas André Zeoly, Rafael Lanaro, Ingrid Simões Oliveira, Mariana Cepollaro Diana, Mauricio Yonamine, Jose Luiz Costa   +6 more
wiley   +1 more source

Metals and Geochemical Indexes in Sediments of a Karstic Coastal Tropical Lagoon: Evaluating the Ecological Risk in Celestun, Yucatan, Mexico. [PDF]

Bull Environ Contam Toxicol
Arcega-Cabrera F, León-Aguirre K, Lamas-Cosío E, Oceguera-Vargas I.   +3 more
europepmc   +1 more source

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

European Journal of Inorganic Chemistry, EarlyView.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo, Víctor E. López‐Guerrero, Alexander Mondragón‐Díaz, Elvis Robles‐Marín, Marcos Flores‐Alamo, José Manuel Guevara‐Vela, Tomás Rocha‐Rinza, Ivan Castillo   +7 more
wiley   +1 more source

Stepwise Hydration Reveals Conformational Switching in Chiral Prolinol. [PDF]

J Am Chem Soc
Loru D, Alonso ER, Insausti A, Pérez C, Evangelisti L, Asensio JL, Corzana F, Pate BH, Cocinero EJ, Sanz ME.   +9 more
europepmc   +1 more source

Dinuclear Rhodium(I)–N‐Heterocyclic Carbene Complexes as Alkyne Hydropyridonation Catalysts

European Journal of Inorganic Chemistry, EarlyView.
Catalyst Improvement by NHC tuning: A series of new RhI–NHC dinuclear complexes has been revealed as efficient alkyne hydropyridonation catalysts. 333053IMes complex displays the highest reactivity of the series, suggesting that a moderate steric demand combined with balanced σ‐donation facilitates precatalyst activation and substrate exchange.
Belinda Español‐Sánchez, Mert Olgun Karataş, Andrea Di Giuseppe, Ulugbek Togaev, Vincenzo Passarelli, Luis A. Oro, Jesús J. Pérez‐Torrente, Ricardo Castarlenas   +7 more
wiley   +1 more source