Listar QUIO_Articles por autoría "a357444d-eb64-447d-b63b-d0963140eaaa"
Mostrando ítems 1-10 de 10
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A Hemilabile and Cooperative N-Donor-Functionalized 1,2,3-Triazol-5-Ylidene Ligand for Alkyne Hydrothiolation Reactions
Strydom, Ian; Guisado-Barrios, Gregorio; Fernandez, Israel; Liles, David C.; Peris, Eduardo; Bezuidenhout, Daniela Wiley (2017)A series of novel cationic and neutral Rh complexes with an N-donor-functionalized 1,2,3-triazol-5-ylidene (TRZ) ligand (in which the pendant N donor is NHBoc, NH2, or NMe2) is described. The catalytic activity of these ... -
A rhodium(I)–oxygen adduct as a selective catalyst for one-pot sequential alkyne dimerization-hydrothiolation tandem reactions
kleinhans, George; Guisado-Barrios, Gregorio; Liles, David C.; Bertrand, Guy; Bezuidenhout, Daniela Royal Society of Chemistry (2016-01)An air-stable rhodium(I)–oxygen adduct featuring a CNC-pincer ligand, based on 1,2,3-triazol-5-ylidenes, catalyzes the homo-dimerization and hydrothiolation of alkynes, affording the gem-enyne and α-vinyl sulfide isomers, ... -
Coordination singularities of a bis(p-xylyl)bis(benzimidazolylidene) ligand and the bis-iridium and -rhodium-related complexes
Ruiz-Botella, Sheila; Guisado-Barrios, Gregorio; Mata Martínez, Jose A; Peris, Eduardo American Chemical Society (2013)The reaction of bis(α,α′-p-xylyl)bis(benzimidazolium) dichloride with [IrCpCl2]2 or [RhCl(COD)]2 affords the corresponding dimetallic bis-N-heterocyclic carbene complexes of Ir and Rh. The reaction with the iridium complex ... -
Hexanuclear cylinder-shaped assemblies of silver and gold from benzene−hexa-N-heterocyclic carbenes
Segarra, Candela; Guisado-Barrios, Gregorio; Hahn, Franz Ekkehardt; Peris, Eduardo American Chemical Society (2014)In this work we describe the preparation of a new benzene–hexaimidazolylidene ligand, which we have coordinated to silver and gold. The new complexes constitute unique examples of cylinder-like macromolecular arrangements, ... -
Isolation of a potassium bis(1,2,3-triazol-5-ylidene) carbazolide: a stabilizing pincer ligand for reactive late transition metal complexes
Bezuidenhout, Daniela; Kleinhans, George; Guisado-Barrios, Gregorio; Liles, David C.; Üng, Gaël; Bertrand, Guy Royal Society of Chemistry (2014)The synthesis and X-ray crystal structure of a potassium adduct of a monoanionic CNC-pincer ligand featuring two mesoionic carbenes is reported. Owing to the peculiar electronic and steric properties of this ligand, the ... -
Novel rhodium and iridium complexes coordinated to C3‑symmetric tris-NHC ligands based on a 1,3,5-triphenylbenzene core. Electronic and catalytic properties
Mejuto, Carmen; Guisado-Barrios, Gregorio; Peris, Eduardo American Chemical Society (2014)A series of novel tris-azolium salt precursors based on 1,3,5- triphenylbenzene have been prepared. These salts exhibit fluorescence emission in the 320−420 nm region. The coordination of these salts to [MCl(COD)]2 (M ... -
Nucleophilic T-Shaped (LXL)Au(I)-Pincer Complexes: Protonation and Alkylation
Kleinhans, George; Hansmann, Max M.; Guisado-Barrios, Gregorio; Liles, David C.; Bertrand, Guy; Bezuidenhout, Daniela American Chemical Society (2016-11)We report the synthesis and reactivity of unusual T-shaped (LXL)Au(I)-pincer complexes, based on a carbazole framework flanked by two mesoionic carbenes (MICs). In contrast to other Au(I) complexes, these complexes react ... -
Pyracene-Linked Bis-Imidazolylidene Complexes of Palladium and Some Catalytic Benefits Produced by Bimetallic Catalysts
Guisado-Barrios, Gregorio; Hiller, Joanna; Peris, Eduardo Wiley (2013-06-18)Two new palladium complexes with a pyracene-linked bis-imidazolylidene (pyrabim) group have been obtained and fully characterized. The related monometallic analogues were obtained from the coordination of an acetanaphthe ... -
Rhodium, iridium and nickel complexes with a 1,3,5-triphenylbenzene tris-MIC ligand. Study of the electronic properties and catalytic activities
Mejuto, Carmen; Royo, Beatriz; Guisado-Barrios, Gregorio; Peris, Eduardo Beilstein-Institut (2015-12-14)The coordination versatility of a 1,3,5-triphenylbenzene-tris-mesoionic carbene ligand is illustrated by the preparation of complexes with three different metals: rhodium, iridium and nickel. The rhodium and iridium complexes ... -
Triazolium Salts as Appropriate Catalytic Scaffolds for 1,4-Additions toα,β-Unsaturated Carbonyls
Bratko, Ielyzaveta; Guisado-Barrios, Gregorio; Favier, Isabel; Mallet-Ladeira, Sonia; Teuma, Emmanuelle; Peris, Eduardo; Gómez, Montserrat Wiley Online Library (2014)1,2,3-Triazole derivatives containing a rigid dihydroanthracenyl skeleton are suitable precursors for both organometallic and organo-based catalysts. A Rh–carbene complex and the triazolium salt efficiently catalyzed the ...