Listar Departament: Química Inorgànica i Orgànica por autoría "683c62c3-c9f0-493c-b412-63e976f04110"
Mostrando ítems 1-20 de 36
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A Simple Route to Chelating, Structurally Different Triazole-Based Bis(N-heterocyclic carbene) Ligands and Their Coordination to PtIl
Zanardi, Alessandro; Mata Martínez, Jose A; Peris, Eduardo Wiley (2011-01)Two new bis(triazolium) salts have been prepared and used as N-heterocyclic carbene (NHC) precursors. The structure of the salts is highly dependent on the synthetic route, which implies the sequential alkylation of two ... -
A simple, safe and robust system for hydrogenation "without high-pressure gases" under batch and flow conditions using a liquid organic hydrogen carrier
Porcar Garcia, Raul; Mollar Cuni, Andrés; Ventura Espinosa, David; Luis, Santiago V.; Garcia-Verdugo, Eduardo; Mata Martínez, Jose A Royal Society of Chemistry (2022)A simple, safe and robust system for the continuous, in situ and on demand generation of hydrogen under mild conditions is reported. A device formed by a packed bed reactor containing a ruthenium N-heterocyclic carbene ... -
A Y-Shaped tris-N-heterocyclic carbene for the synthesis of simultaneously chelate-monodentate dipalladium complexes
Peris, Eduardo; Gonell, Sergio; Mata Martínez, Jose A; Poyatos, Macarena American Chemical Society (2011-11)A Y-shaped tris-NHC ligand has been obtained and coordinated to palladium, affording metal complexes with novel topological properties. The tris-NHC ligand is capable of coordinating the two metals, affording two different ... -
Alkenyl-functionalized NHC iridium-based catalysts for hydrosilylation
Zanardi, Alessandro; Peris, Eduardo; Mata Martínez, Jose A Royal Society of Chemistry (2008)A family of alkenyl-functionalized N-heterocyclic-carbene–iridium(I) complexes has been synthesized, providing a series of mono-coordinated, bis-chelate and pincer alkenyl-NHC species. Olefin coordination is highly ... -
Alternative energy input for transfer hydrogenation using iridium NHC based catalysts in glycerol as hydrogen donor and solvent
Azua Barrios, Arturo; Mata Martínez, Jose A; Peris, Eduardo; Lamaty, Frederic; Martínez, Jean; Colacino, Evelina American Chemical Society (2012)Four Ir(I) and Ir(III) N-heterocyclic carbene (NHC) based complexes with 3,4,5-trimethoxybenzyl N-substituents have been obtained and fully characterized. The new complexes have been used as catalysts in the reduction ... -
An Ir–Pt Catalyst for the Multistep Preparation of Functionalized Indoles from the Reaction of Amino Alcohols and Alkynyl Alcohols
Zanardi, Alessandro; Mata Martínez, Jose A; Peris, Eduardo Wiley-VCH (2010)The 1,2,4-trimethyltriazolylidene (ditz) ligand allows the preparation of homo- and heterodimetallic complexes of Pt2 and Ir–Pt. These two complexes have been characterized by means of spectroscopic and diffractommetric ... -
Aplicació de rúbriques per a l'avaluació d'estudiants en grups de treball de laboratori químic
Gonell, Francisco; Gonell, Sergio; Julian-Lopez, Beatriz; Mata Martínez, Jose A Universitat de Barcelona (2016)El present treball de millora educativa constitueix un exemple de millora en les pràctiques de laboratori de l’assignatura QU0924 Química Inorgànica III mitjançant la introducció de rúbriques com a instrument d’avaluaci ... -
Catalyst Enhancement and Recyclability by Immobilization of Metal Complexes onto Graphene Surface by Noncovalent Interactions
Sabater López, Sara; Mata Martínez, Jose A; Peris, Eduardo ACS Publications (2014-05-14)The immobilization of a homogeneous catalyst onto a solid surface is one of the major challenges in catalysis, because it may facilitate the separation of the catalyst and the reaction products and may also give rise to ... -
Catalytic applications of magnetic nanoparticles functionalized using iridium N-heterocyclic carbene complexes
Iglesias Bernardo, Diego; Sabater López, Sara; Azua Barrios, Arturo; Mata Martínez, Jose A The Royal Society of Chemistry (2015)synthetic modular methodology allows the preparation of catalytic materials based on magnetic nanoparticles with iridium N-heterocyclic carbene (NHC) complexes. Imidazolium salts containing a ketone/aldehyde as a pendant ... -
Catalytic Dehydrogenative Coupling of Hydrosilanes with Alcohols for the Production of Hydrogen On-demand: Application of a Silane/Alcohol Pair as a Liquid Organic Hydrogen Carrier
Ventura Espinosa, David; Carretero Cerdán, Alba; Baya, Miguel; García, Hermenegildo; Mata Martínez, Jose A Wiley (2017)The compound [Ru(p-cym)(Cl)2(NHC)] is an effective catalyst for the room-temperature coupling of silanes and alcohols with the concomitant formation of molecular hydrogen. High catalyst activity is observed for a variety ... -
Catalytic Hydrogen Production by Ruthenium Complexes from the Conversion of Primary Amines to Nitriles: Potential Application as a Liquid Organic Hydrogen Carrier
Ventura Espinosa, David; Marzá Beltrán, Aida; Mata Martínez, Jose A Wiley (2016)The potential application of the primary amine/nitrile pair as a liquid organic hydrogen carrier (LOHC) has been evaluated. Ruthenium complexes of formula [(p-cym)Ru(NHC)Cl2] (NHC=N-heterocyclic carbene) catalyze the ... -
Chiral palladacycles with N‑heterocyclic carbene ligands as catalysts for asymmetric hydrophosphination
Sabater López, Sara; Mata Martínez, Jose A; Peris, Eduardo American Chemical Society (2013)Design of chiral palladacycles with N-heterocyclic carbene (NHC) ligands has been carried out in good yields starting form commercially available enantiopure benzylamines. The methodology developed consists of the formation ... -
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 ... -
Double CH bond activation of C(sp3)H2 groups for the preparation of complexes with back-to-back bisimidazolinylidenes
Prades Ferrer, Amparo; Poyatos, Macarena; Mata Martínez, Jose A; Peris, Eduardo Wiley (2011-06-29)Two-headed carbenes: N-heterocyclic carbene complexes of rhodium and iridium were obtained by the double CH activation of CH2 groups in N heterocycles (see structure: C gray, N blue, Cl green, Ir pink). The reaction ... -
Dual Catalysis with an IrIII–AuI Heterodimetallic Complex: Reduction of Nitroarenes by Transfer Hydrogenation using Primary Alcohols
Sabater López, Sara; Peris, Eduardo; Mata Martínez, Jose A Wiley (2012-05)A triazolyl-di-ylidene ligand has been used for the preparation of a homodimetallic complex of gold, and a heterodimetallic compound of gold and iridium. Both complexes have been fully characterized and their molecular ... -
Enantiomerically pure cyclopentadienyl- and indenyl-functionalized N-heterocyclic carbene complexes of iridium and rhodium
Peris, Eduardo; Mata Martínez, Jose A; Da Costa, André Pontes; Lopes, Rita; Cardoso, João M. S.; Royo, Beatriz American Chemical Society (2011-08)Novel enantiomerically pure cyclopentadienyl- and indenyl-functionalized N-heterocyclic carbene ligands have been prepared by reaction of a chiral imidazole tosylate derivative with the corresponding cyclopentadienyl and ... -
Enhancement of gold catalytic activity and stability by immobilization on the surface of graphene
Ventura Espinosa, David; Sabater López, Sara; Mata Martínez, Jose A Elsevier (2017-08)The catalytic performance of gold complexes is evaluated at the molecular level and when supported onto reduced graphene oxide (rGO). Gold complexes of general formula [(NHC)AuX] catalyse the synthesis of indoles via ... -
Heterobimetallic iridium–ruthenium assemblies through an ambidentate triazole-diylidene ligand: electrochemical properties and catalytic behavior in a cascade reaction
Sabater López, Sara; Mata Martínez, Jose A; Peris, Eduardo American Chemical Society (2012)The preparation in high yield of a (p-cymene)- RuII(triazolium-ylidene) complex allows the synthesis of an heterobimetallic IrIII −RuII complex with a triazole-diylidene bridge. The same complex can also be prepared ... -
Heterometallic complexes, tandem catalysis and catalytic cooperativity
Mata Martínez, Jose A; Hahn, Franz Ekkehardt; Peris, Eduardo The Royal Society of Chemistry (2014)This minireview reports the most recent advances in the use of heterometallic catalysts based on single-frame N-heterocyclic carbene ligands. The article describes the synthetic strategies for the preparation of heterometallic ... -
Immobilization of Pyrene-Tagged Palladium and Ruthenium Complexes onto Reduced Graphene Oxide: An Efficient and Highly Recyclable Catalyst for Hydrodefluorinatio
Sabater López, Sara; Mata Martínez, Jose A; Peris, Eduardo American Chemical Society (2014-12)The co-immobilization of palladium and ruthenium complexes with pyrene-tagged Nheterocyclic carbene ligands onto reduced grahene oxide allows the formation of a highly efficient catalyst for the hydrodefluorination of a ...