Browsing by Title Artículos de revistas
Now showing items 1908-1927 of 2801
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(ELSEVIER SCIENCE, 2007-06-10)A different photophysical and photochemical behavior has been found between two second generation antihypertensive 1,4-dihydropyitidines (1,4-DHPs), felodipine and nimodipine. While nimodipine was observed as being more ...
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(Elsevier Science SA, 2018)Phenalenone has been extensively studied due to its photophysical behavior. However, fewer are the articles referring to the phenalenone derivatives as singlet oxygen generators. The incorporation of substituents on the ...
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(AMER CHEMICAL SOC, 2008-07-18)The photophysics and photochemistry of a series of naphthoxazinones have been studied using a combination of methods ranging from steady-state and time-resolved spectroscopic techniques to product analysis. The photophysics ...
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(AMER CHEMICAL SOC, 2002-08-08)Photoreduction of 3-phenylquinoxalin-2-ones, XNQ, by triethylamine, TEA, gives a metastable semireduced quinoxalin-2-one via an electron-proton-electron transfer, with unit quantum yields at high amine concentrations. ...
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(ROYAL SOC CHEMISTRY, 2004-03-21)The reduction of several nitrobenzenes bearing electron-donor and electron-withdrawing substituents in the 4-position by triethylamine in acetonitrile was studied by cyclic voltammetry, EPR spectroscopy, and steady-state ...
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(The American Society of Photobiology, 2013)Photoreduction of 7H-benzo[e]perimidin-7-one (3-AOIA, A1) and its 2-methyl derivative (2-Me-3-AOIA, A2) by non-Hdonating amines (1,4-diazabicyclo[2.2.2]octane [DABCO]; 2,2,6,6-tetramethylpiperidine [TMP]), and a ...
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(AMER CHEMICAL SOC, 2005-07-07)Photoreduction by amines of oxoisoaporphine dyes occurs via a stepwise mechanism of electron-proton electron transfer that leads to the metastable N-hydrogen oxoisoaporphine anion. During photoreduction that occurs from ...
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(2009)Photoreduction of oxoisoaporphine (OIA) (l-aza-benzo-[de]anthracen-7-one) and its 5-methoxy (5-MeOOIA) derivative by selected amines (two non-a-hydrogen-donating amines (l,4-diaza[2.2.2]-bicyclooctane (DABCO) and ...
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(ROYAL SOC CHEMISTRY, 2004)Photoreduction of 5,6-dimethoxy-, 5-methoxy- and 2,3-dihydro-7H-dibenzo[de, h] quinolin-7-one (A) by tertiary amines in oxygen-free solutions generates long-lived semi-reduced metastable photoproducts, A - NH-, via a ...
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(ELSEVIER, 2008-09-25)The photophysical properties, the capacity to produce singlet molecular oxygen by sensitization and the photostability of a series of 20 aryloxazinones and one quinoxalinone have been evaluated using a combination of methods ...
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(Elsevier, 2017)Gold nanorods (GNR) use has been proposed in medical applications because of their intrinsic photothermal properties. However, the presence of CTAB molecules adsorbed onto the surface of GNRs results in a highly cytotoxic ...
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(JOHN WILEY & SONS INC, 2001-04-15)Electronic structure aspects related to the semiconducting properties of monomers and polymers of phythalocyanoiron with bidentate bridging ligands, PcFe-L-2 and -[PcFe(L)](n), have been investigated from density functional ...
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(Oxford University Press, 2017)Background and Aims Paper mulberry or Broussonetia papyrifera (L.) L'Her. ex Vent. (Moraceae) is a dioecious species native to continental South-east Asia and East Asia, including Taiwan, that was introduced to the Pacific ...
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(Elsevier Ltd., 2011)The main objective of this work is to spread the physicochemical and nutritional characteristics of the Physalis peruviana L., fruit and the relation of their physiologically active components with beneficial effects on ...
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Physical properties of new ordered bimetallic phases M0.25Cd0.75PS3 (M = Zn-II, Ni-II, Co-II, Mn-II) (Royal Society of Chemistry, 2020)Four bimetallic phases of the thiophosphate family have been synthesized by the cationic exchange reaction using a freshly prepared K0.5Cd0.75PS3 precursor phase and methanolic solutions of nitrates of the divalent cations ...
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(Elsevier, 2014)In this work, we characterize the electrochemical behavior of a new ferrocenyl-modified, hyperbranched poly(ethylenimine) (HBPei-Fc). The effects of the ionic strength, pH and the nature of the anion of the supporting ...
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(Springer, 2020)Lung cancer is a neoplasm associated with bacterial infections, main reason, to design a combined chemotherapy and antimicrobial treatment. Due to adverse drug reactions, we designed and synthetized polymer Poly(3-hydrox ...
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(ELSEVIER SCI IRELAND LTD, 1997-07)The anti-inflammatory property of Lomatia hirsuta (Lam.) Diels ex Macbr. (Proteaceae), leaves (radal), a plant used in Chilean traditional medicine for bronchial troubles and asthma, was evaluated. The biological assays ...
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(MDPI, 2021)The genus Nothofagus is one of the most abundant in the subantarctic Patagonian forests. Five species inhabit these ecosystems, three evergreen (Nothofagus betuloides, Nothofagus dombeyi, and Nothofagus nitida) and two ...
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(MDPI, 2020)Murta and calafate have been traditionally used by indigenous and rural peoples of Chile. Research on murta and calafate has gained interest due to their attractive sensory properties as well as a global trend in finding ...
