Listar QUIO_Articles por fecha de publicación
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CIGSS films prepared by sol-gel route
Elsevier (2009)Homogeneous layers of amorphous oxides of Cu-In, Cu-In-Ga were deposited by a sol-gel method. Selenization, sulfurization and sequential selenization + sulfurization treatments were performed with elemental S and Se, ... -
Synthesis of Cr-doped CaTiSiO5 ceramic pigments by spray drying
Elsevier (2009)Cr-doped CaTiSiO5 was synthesized by spray drying and conventional ceramic method in order to assess its potential as ceramic pigment. The evolution of the phase composition with thermal treatment was investigated by X-ray ... -
Ceramic pigments with sphene structure obtained by both spray- and freeze-drying techniques
Elsevier (2009)The present study is focused on the procedure of spray- and freeze-drying techniques for the preparation of Cr-doped sphene pigments (CaSn0.98Cr0.02 SiO5, CaTi0.98Cr0.02SiO5) from an aqueous solution of precursor salts, ... -
Nanocomposite Fe2O3–SiO2 inclusion pigments from post-functionalized mesoporous silicas
Elsevier (2009)High-surface mesoporous silicas with different pore sizes were employed for the first time as silicon precursors in the synthesis of reddish Fe2O3–SiO2 inclusion pigments. Interestingly, the size of included Fe2O3 nanoparticles ... -
Chiral synthetic pseudopeptidic derivatives as triplet excited state quenchers
Elsevier (2009)The behavior of 6 pseudopeptidic models, synthesized by connecting different protected amino acids (Trp, Tyr, Phe, and Lys) with various diamino spacers, as quenchers of the triplet excited state of tiaprofenic acid (and ... -
Supported N-heterocyclic carbene rhodium complexes as highly selective hydroformylation catalysts
Elsevier (2009)New supported rhodium(I) catalyst precursors were obtained in reaction of [Rh(OMe)(cod)]<sub>2</sub> with polymeric monoliths containing methyl-imidazolium moieties and applied in 1-hexene hydroformylation at 10 atm of ... -
Synthesis by pyrolysis of aerosols and ceramic application of Cr-doped CaYAlO4 red–orange pigments
Elsevier (2009)The synthesis of red–orange Cr-doped YCaAlO4 pigments has been improved (softer thermal conditions and lower environmental impact) and optimised by using the pyrolysis of aerosols method. We also study the crystallochemical ... -
Self-Assembling of Er2O3–TiO2 Mixed Oxide Nanoplatelets by a Template-Free Solvothermal Route
Wiley (2009)An easy solvothermal route has been developed to synthesize the first mesoporous Er2O3–TiO2 mixed oxide spherical particles composed of crystalline nanoplatelets, with high surface area and narrow pore size distribution. ... -
Structural and Spectroscopic Study of a New Pink Chromium-Free Er2(Ti,Zr)2O7 Ceramic Pigment
Wiley (2009)Transition metal ions are usually incorporated as chromophores into pyrochlore structures in order to develop colored compounds. However, due to the high toxicity of some of them (Cr, Ni, Co, Cd …), other nontoxic species ... -
First Cyclic Carbodiphosphoranes of Copper(I) and Gold(I) and Their Application in the Catalytic Cleavage of X−H Bonds (X = N and O)
American Chemical Society (2009)Three new carbodiphosphorane complexes, (PHCP)M(tBuO) (PHCP = carbodiphosphorane; M = Cu, Au) and (PHCP)CuCl, were readily prepared by reaction of the carbodiphosphorane 2 with CuCl or AuCl(Me2S). The three complexes have ... -
New insights on organosilane oligomerization mechanisms using ESI-MS and 29Si NMR
Royal Society of Chemistry (2009)The use of electrospray ionization mass spectrometry (ESI-MS) in parallel with 29Si and 1H NMR to elucidate the aqueous speciation and temporal evolution of the organosilane methyldiethoxysilane (MDES) through hydrolysis ... -
Influence of the gas atmosphere on the deprotection of (Z)-γ -hydroxy- α , β-unsaturated esters
Bentham Science Publishers (2009)The deprotection of O-protected (Z)-α-methyl-γ-hydroxy-α,β-unsaturated ester 1 furnishes dimer 2 when the reaction is performed under a nitrogen atmosphere, while compound 3 forms when the reaction is performed under an ... -
Remarkable increase in basicity associated with supramolecular gelation
Royal Society of Chemistry (2009)L-Proline derivatives which are able to form supramolecular gels show an amazing basicity increase in the aggregated (gel) state as compared to solution. As a result they behave as enantioselective catalysts for the aldol ... -
One-Pot Synthesis of Functional Helicoidal Hybrid Organic-Inorganic Nanofibers with Periodically Organized Mesoporosity
WILEY-VCH Verlag (2009)The one-pot synthesis and properties of multifunctional hybrid mesoporous organosilica fibers with helical shapes are described. These hybrid mesoporous fibers are prepared without chiral elements and functionalized with ... -
New insights in the structure-luminescence relationship of Eu:SrAl2O4
Elsevier (2009)This work aims the preparation of Eu:SrAl2O4 through a sol-gel methodology. Some studies point out the possibility that hexagonal polymorph exhibit higher luminescence efficiency than the monoclinic one. However, the slow ... -
Singlet oxygen generation using a porous monolithic polymer supported photosensitizer: potential application to the photodynamic destruction of melanoma cells
Royal Society of Chemistry (2009-01)Photogeneration of singlet oxygen (1O2) by rose bengal is improved through the use of a porous monolithic polymer (PMP) as a support, as compared to a classic gel-type resin matrix. This type of monolithic polymeric ... -
Influence of the Solvent on the Self-Assembly of a Modified Amyloid Beta Peptide Fragment. II. NMR and Computer Simulation Investigation
American Chemical Society (2010)The conformation of a model peptide AAKLVFF based on a fragment of the amyloid β peptide Aβ16−20, KLVFF, is investigated in methanol and water via solution NMR experiments and molecular dynamics computer simulations. In ... -
Conductivity and Polarization Processes in Highly Cross-Linked Supported Ionic Liquid-Like Phases
American Chemical Society (2010)Supported ionic liquid-like phases were prepared by anchoring imidazolium moieties onto highly cross-linked poly(p-chloromethylstyrene-co-divinylbenzene) monolithic matrixes. The influence of the chemical nature of the ... -
Mujeres en, por y para la ciencia
Universitat Jaume I. Institut Universitari d’Investigació Feminista i de gènere (2010) -
New polymer-supported photocatalyst with improved compatibility with polar solvents. Synthetic application using solar light as energy source
Elsevier (2010)A new kind of supported photocatalysts derived from low-crosslinked polystrene, containing Rose Bengal and pyridinium groups, is described. Such polymers are capable to catalyze the quantitative synthesis of 5-hydroxy-5H ...