Listar por autoría "e5f624e7-a8e0-40d1-ab61-b09a20d51d9a"
Mostrando ítems 1-20 de 21
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Air-Stable, Well-Soluble AI2[Nb6Cl18] Cluster Compounds (AI = Organic Cation): A New Route for Preparation, Single-Crystal Structures, Properties, and ESI-Mass Spectra
König, Jonas; Dartsch, Ina; Topp, A.; Guillamón, Eva; Llusar, Rosa; Köckerling, Martin Wiley (2016-04)Five niobium cluster compounds of the AI2[Nb6Cl18] type (AI = organic cation: [nPr4N]+, [nBu4N]+, [BMIm]+, [Ph4P]+, and [PPN]+) are obtained through treatment of [Nb6Cl14(H2O)4]·4H2O with excess of thionyl chloride in the ... -
Base-Free Catalytic Hydrogen Production from Formic Acid Mediated by a Cubane-Type Mo3S4 Cluster Hydride
Guillamón, Eva; Sorribes, Iván; Safont Villarreal, Vicent Sixte; Algarra, Andrés G.; Fernández-Trujillo, M. Jesús; Pedrajas Gual, Elena; Llusar, Rosa; García Basallote, Manuel American Chemical Society (2022-10-14)Formic acid (FA) dehydrogenation is an attractive process in the implementation of a hydrogen economy. To make this process greener and less costly, the interest nowadays is moving toward non-noble metal catalysts and ... -
Bifunctional W/NH Cuboidal Aminophosphino W3S4 Cluster Hydrides: The Puzzling Behaviour behind the Hydridic-Protonic Interplay
Guillamón, Eva; Beltrán Álvarez, Tomás Francisco; Safont Villarreal, Vicent Sixte; Castillo, Carmen E.; Algarra, Andrés G.; Fernández-Trujillo, M. Jesús; Pedrajas Gual, Elena; Pino Chamorro, Jose Angel; García Basallote, Manuel; Llusar, Rosa Wiley (2021-09-22)The novel [W3S4H3(edpp)3]+ (edpp=(2-aminoethyl)diphenylphosphine) (1+) cluster hydride with an acidic −NH2 functionality has been synthetized and studied. Its crystal structure shows the characteristic incomplete W3S4 ... -
Catalytic Hydrogenation of Azobenzene in the Presence of a Cuboidal Mo3S4 Cluster via an Uncommon Sulfur-Based H2 Activation Mechanism
Guillamón, Eva; Oliva, Mónica; Andres, Juan; Llusar, Rosa; Pedrajas Gual, Elena; Safont Villarreal, Vicent Sixte; Algarra, Andrés G.; García Basallote, Manuel American Chemical Society (2021)Azobenzene hydrogenation is catalyzed under moderate conditions by a cuboidal Mo3(μ3-S)(μ-S)3 diamino complex via a cluster catalysis mechanism. Dihydrogen activation by the molecular [Mo3(μ3-S)(μ-S)3Cl3(dmen)3]+ cluster ... -
Chiral [Mo3S4H3(diphosphine)3]+ hydrido clusters and study of the effect of the metal atom on the kinetics of proton transfer to the coordinated hydride: Mo vs W
Algarra, Andrés G.; García Basallote, Manuel; Fernández-Trujillo, M. Jesús; Feliz Rodríguez, Marta; Guillamón, Eva; Llusar, Rosa; Sorribes, Iván; Vicent Barrera, Cristian American Chemical Society (2010)The molybdenum(IV) cluster hydrides of formula [Mo3S4H3(diphosphine)3]+ with diphosphine = 1,2-(bis)dimethylphosphinoethane (dmpe) or (+)-1,2-bis-(2R,5R)-2,5-(dimethylphospholan-1-yl)ethane ((R,R)-Me-BPE) have been isolated ... -
Cuboidal Mo3S4 Clusters as a Platform for Exploring Catalysis: A Three-Center Sulfur Mechanism for Alkyne Semihydrogenation
Algarra, Andrés G.; Guillamón, Eva; Andres, Juan; Fernández-Trujillo, M. Jesús; Pedrajas Gual, Elena; Pino Chamorro, Jose Angel; Llusar, Rosa; García Basallote, Manuel American Chemical Society (2018-08-03)We report a trinuclear Mo3S4 diamino cluster that promotes the semihydrogenation of alkynes. Based on experimental and computational results, we propose an unprecedented mechanism in which only the three bridging sulfurs ... -
Cycloaddition of alkynes to diimino Mo3S4 cubane-type clusters: a combined experimental and theoretical approach
Pino Chamorro, Jose Angel; Laricheva, Yuliya A.; Guillamón, Eva; Fernández-Trujillo, M. Jesús; Bustelo, Emilio; Gushchin, Artem L.; Shmelev, Nikita Y.; Abramov, Pavel A.; Sokolov, Maxim; Llusar, Rosa; García Basallote, Manuel; Algarra, Andrés G. Royal Society of Chemistry (2016)A heterocyclic ligand 4,4′-di-tert-butyl-2,2′-bipyridine (dbbpy) has been coordinated to the Mo3S4 cluster unit affording the complex [Mo3S4Cl3(dbbpy)3]+ ([1]+) in a one-step ligand-exchange protocol from [Mo3S4(tu)8(H2O)]Cl4·4H2O ... -
Disclosing the Biocide Activity of α-Ag2−2xCuxWO4 (0 ≤ x ≤ 0.16) Solid Solutions
Llusar, Rosa; Andres, Juan; Gouveia, Amanda; Guillamón, Eva; Sorribes, Iván; Pereira, Paula; Foggi, Camila Cristina; Pinatti, Ivo M; Cabral, Luís; San-Miguel, Miguel A.; Vergani, Carlos; Simões, Alexandre; Silva, Edison; Cavalcante, Laécio Santos; Longo, Elson MDPI (2022-09-11)n this work, α-Ag2−2xCuxWO4 (0 ≤ x ≤ 0.16) solid solutions with enhanced antibacterial (against methicillin-resistant Staphylococcus aureus) and antifungal (against Candida albicans) activities are reported. A plethora of ... -
Efficient (Z)-selective semihydrogenation of alkynes catalyzed by air-stable imidazolyl amino molybdenum cluster sulfides
Gutiérrez-Blanco, María; Guillamón, Eva; Safont Villarreal, Vicent Sixte; Algarra, Andrés G.; Fernández-Trujillo, M. Jesús; Junge, Henrik; García Basallote, Manuel; Llusar, Rosa; Beller, matthias Royal Society of Chemistry (2023-02-16)Imidazolyl amino cuboidal Mo3(μ3-S)(μ-S)3 clusters have been investigated as catalysts for the semihydrogenation of alkynes. For that purpose, three new air-stable cluster salts [Mo3S4Cl3(ImNH2)3]BF4 ([1]BF4), [Mo3S4Cl3( ... -
Efficient and Selective N‐Methylation of Nitroarenes under Mild Reaction Conditions
Pedrajas Gual, Elena; Sorribes, Iván; Guillamón, Eva; Junge, Henrik; Beller, matthias; Llusar, Rosa Wiley (2017)Herein, we report a straightforward protocol for the preparation of N,N‐dimethylated amines from readily available nitro starting materials using formic acid as a renewable C1 source and silanes as reducing agents. This ... -
Enantioselective synthesis of tungsten trimetallic cluster chalcogenides
Guillamón, Eva; Llusar, Rosa Elsevier (2015-01)Excision of {W3Q7Br4}n (Q = S, Se) of polymeric phases using chiral diphosphines is a general procedure to synthesize optically pure trinuclear clusters. Chiral transfer from the enantiomerically pure diphosphines ... -
Hexanuclear Niobium Cluster Compounds with Protonated N‐Base Cations
König, Jonas; Dartsch, Ina; Sperlich, Eric; Guillamón, Eva; Llusar, Rosa; Köckerling, Martin Wiley (2020)Octahedral clusters of the [M6X12] type offer numerous possibilities to form structural arrangements through different choices of bonding situations. In this paper a series of new cluster compounds of the transition metal ... -
Identification and characterization of a novel cathinone derivative 1-(2,3dihydro-1H-inden-5-yl)-2-phenyl-2-(pyrrolidin-1-yl)-ethanone seized by customs in Jersey
Bijlsma, Lubertus; Miserez, Bram; Ibáñez, Maria; Vicent Barrera, Cristian; Guillamón, Eva; Ramsey, John; Hernandez, Felix Springer (2015-11)A suspicious white powder labeled “idanyl-biphenyl-amninone,” which was seized by customs officials at the "channel island" of Jersey, UK, was brought to our laboratory for identification and characterization of its ... -
Insight into the mechanism of diazocompounds transformation catalyzed by hetero cuboidal clusters [Mo3CuQ4(MeBPE)3X4]+, (Q = S, Se; X = Cl, Br): The catalytically active species
Guillamón, Eva; Llusar, Rosa; Pérez Prieto, Julia; Stiriba, S. E. Elsevier (2008)Two enantiomerically pure trinuclear compounds of formula (P)-[Mo3S4{(R,R)-Me–BPE}3Br3]Br and (P)-[Mo3Se4{(R,R)-Me–BPE}3Cl3]Cl, (P)-1b.Br and (P)-1c.Cl, respectively, have been synthesized in a good yield and a stereospecific ... -
Kinetics Aspects of the Reversible Assembly of Copper in Heterometallic Mo3CuS4 Clusters with 4,4′-Di-tert-butyl-2,2′-bipyridine
Pino Chamorro, Jose Angel; Laricheva, Yuliya A.; Guillamón, Eva; Fernández-Trujillo, M. Jesús; Algarra, Andrés G.; Gushchin, Artem L.; Abramov, Pavel A.; Bustelo, Emilio; Llusar, Rosa; Sokolov, Maxim; García Basallote, Manuel American Chemical Society (2016)Treatment of the triangular [Mo3S4Cl3(dbbpy)3]Cl cluster ([1]Cl) with CuCl produces a novel tetrametallic cuboidal cluster [Mo3(CuCl)S4Cl3(dbbpy)3][CuCl2] ([2][CuCl2]), whose crystal structure was determined by X-ray ... -
Photoluminescence emissions of Ca1−xWO4:xEu3+: Bridging between experiment and DFT calculations
Gouveia, Amanda; Assis, Marcelo de; Ribeiro , Lara Kelly; Brandão Lima, Aline Estefany; de Oliveira Gomes, Eduardo; Souza, Daniele; Galvão Gobato, Yara; Rosa, Ieda; Luz Jr, Geraldo; Guillamón, Eva; Longo, Elson; Andres, Juan; San-Miguel, Miguel A. Elsevier (2022-10-15)In this work, the impact of the doping process on the photoluminescence emission of CaWO4 as a function of the concentration of Eu3+ cation (0.01 mol%, 0.02 mol%, 0.04 mol%, 0.06 mol%, 0.08 mol%, and 0.10 mol%) is discussed ... -
Selective Dehydrogenation of Formic Acid Catalyzed by Air-Stable Cuboidal PN Molybdenum Sulfide Clusters
Gutiérrez-Blanco, María; Stein, Carolin A. M.; Alfonso, Carmina; Guillamón, Eva; Safont Villarreal, Vicent Sixte; Sorribes, Iván; Junge, Henrik; Beller, matthias; Llusar, Rosa Wiley (2023-09-13)Formic acid is considered as a promising hydrogen storage material in the context of a green hydrogen economy. In this work, we present a series of aminophosphino and imidazolylamino Mo3S4 cuboidal clusters which are active ... -
Tailoring Bi2MoO6 by Eu3+ incorporation for enhanced photoluminescence emissions
Pinatti, Ivo M; Pires, Fabio; Almeida, Priscila B.; Pereira, Paula; Daldin Teodoro, Marcio; Guillamón, Eva; Simões, Alexandre; Andres, Juan; Longo, Elson; Rosa, Ieda Elsevier (2021-12-13)Here, an experimental study is presented on the structural, electronic, and optical properties of Bi2-xMoO6:xEu3+ (x = 0, 0.5, 1.0, 2.0, and 4.0 mol%) materials, synthesized by means of the microwave-assisted solvothermal ... -
Towards an efficient selective oxidation of sulfides to sulfones by NiWO4 and α-Ag2WO4
Assis, Marcelo de; Gouveia, Amanda; Ribeiro, Lara Kelly; Ponce, Miguel Adolfo; Churio, Maria Sandra; Oliveira, Osvaldo N.; Mascaro, Lucia; Longo, Elson; Llusar, Rosa; Guillamón, Eva; Andres, Juan Elsevier (2023-02-25)Chemoselective oxidation of sulfides to sulfones under mild conditions is relevant for industry, but challenging owing to the need to establish catalysis mechanisms and optimize several experimental parameters. Herein, we ... -
Tug-of-War Driven by the Structure of Carboxylic Acids: Tuning the Size, Morphology, and Photocatalytic Activity of α-Ag2WO4
Ribeiro , Lara Kelly; Gouveia, Amanda; das Chagas da Silva Machado, Francisco; Guimarães Nolêto, Luis Fernando; Assis, Marcelo de; Batista, André; Cavalcante, Laécio Santos; Guillamón, Eva; Rosa, Ieda; Longo, Elson; Andres, Juan; Luz Jr, Geraldo MDPI (2022-09-23)Size and morphology control during the synthesis of materials requires a molecular-level understanding of how the addition of surface ligands regulates nucleation and growth. In this work, this control is achieved by ...