Results 21 to 30 of about 2,766 (131)
El objetivo de este trabajo es determinar la estabilidad oxidativa de los aceites de sacha inchi (Plukenetia huayllabambana y Plukenetia volubilis) sin microencapsular y microencapsulados con diferentes materiales de pared, empleando el método de ...
Nancy Chasquibol +3 more
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Hydrogen Bond Mediated Dioxygen Activation in a Manganese Guanidine Complex
The guanidine arms of [Mn(DIG3tren)]2+ provide the reducing equivalents and H‐bonding stabilization necessary for the bimolecular activation of O2 to form a mixed valent MnIII(m‐O)2MnIV species. A high‐spin manganese(II) complex supported by a guanidine‐based DIG3tren (tris(N’, N”‐diisopropylguanidinyl‐2‐ethyl)amine) ligand has been synthesized and ...
Matthias Jux, Kallol Ray
wiley +1 more source
Vulcanización de elastómeros con peróxidos orgánicos [PDF]
Tesis de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, Departamento de Química Física I, leída el 08-11-2009El propósito de esta Memoria es seguir avanzando en el estudio de la formación de redes y para ello utilizaremos como ...
Fernández Torres, Alberto
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Os grãos de amendoim são excelente fonte de proteínas e lipídios. Antes de serem consumidos, os grãos de amendoim são submetidos a um processo de torrefação para adquirir características sensoriais desejáveis, além de eliminar os microrganismos presentes,
Valmor Ziegler +5 more
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The herein‐developed tyrosinase model complex enables the transfer of tyrosinase‐like catalytic oxygenation activity into artificial systems. Therefore, it enables the use of molecular oxygen for oxygenation and oxidation of phenolic substrates at room temperature.
Rosalie Dalhoff +3 more
wiley +1 more source
Here, we describe new Cu(I)/Cu(II) complexes based on arylated tren ligands and investigate their reactivity toward O2 and peroxides. Low‐temperature–stopped flow studies revealed the formation of transient copper–oxygen species, including superoxido, hydroperoxido, and alkylperoxido intermediates.
Chiara Eleonora Campi +2 more
wiley +1 more source
The complex [(tet a)FeII(OTf)2] reacts with dioxygen first to a superoxido intermediate and in a consecutive reaction to the corresponding iron–oxido complex. The reactions of the iron complexes [(tet a)FeII(OTf)2] and [(tet b)FeII](OTf)2 (tet = 5,5,7,12,12,14‐hexamethyl‐1,4,8,11‐tetraazacyclotetradecane) with dioxygen were investigated.
Kevin Keller +2 more
wiley +1 more source
Unraveling the Electron Transfer Mechanism in the Reduction of Bis(µ‐Oxido) Dicopper Complexes
We elucidate the electron transfer mechanism in bis(µ‐oxido) dicopper complexes stabilized by guanidine ligands. Kinetic and spectroscopic analyses reveal two sequential reduction steps without isomerization to µ‐η²:η²‐peroxido species. Marcus and density functional theory studies show ligand‐dependent reorganization energies and a unique two‐spin–four‐
Regina Schmidt +5 more
wiley +1 more source
Efeito da utilização de Butil-Hidroxianizol como agente antioxidante em biodiesel de óleos residuais
Um dos desafios a serem superados nos próximos anos, buscando ampliar a utilização de biodiesel no mercado brasileiro, trata da sua estabilidade à oxidação.
Anderson Favero Porte +2 more
doaj +4 more sources
New solutions against Legionella Tratamientos para Legionella: nuevas alternativas
Searching for new solutions for disinfection OX-CTA researches and develops effective products and accurate application protocols improving those traditionally and widely spread.According to the results OX products, based on peroxides, are a good ...
Yolanda Vergara Larrayad +1 more
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