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Ara mostrant els elements 1-20 d 49
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A D3h-symmetry hexaazatriphenylene-tris-N-heterocyclic carbene ligand and its coordination to iridium and gold: preliminary catalytic studies
Ibáñez, Susana; Poyatos, Macarena; Peris, Eduardo Royal Society of Chemistry (2017)A new D3h-symmetry tris-N-heterocyclic carbene ligand has been prepared and coordinated to iridium and gold. The ligand contains an electron-poor hexaazatriphenylene core; thus, the resulting tris-NHC ligand is a poor ... -
A Dinuclear Au(I) Complex with a Pyrene-di-N-heterocyclic Carbene Linker: Supramolecular and Catalytic Studies
Nuevo Vialás, Daniel; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2018)A digold(I) complex with a pyrene-di-N-heterocyclic carbene ligand has been obtained and fully characterized. The host–guest properties of the complex were studied in chloroform with a series of polycylic aromatic hydrocarbons ... -
A nano-sized Janus di-N-heterocyclic carbene ligand based on a quinoxalinophenanthrophenazine core, and its coordina- tion to iridium
Valdés Rivas, Hugo Christian; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2015-04-21)A Janus-type bis-N-heterocyclic carbene ligand based on a quinoxalinophenanthrophenazine core has been obtained and coordinated to iridium. The electronic properties of the ligand have been determined on the basis of an ... -
A pyrene-based N‑heterocyclic carbene: study of its coordination chemistry and stereoelectronic properties
Valdés Rivas, Hugo Christian; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2014)A new pyrene-N-heterocyclic carbene ligand has been obtained and coordinated to rhodium and iridium, affording the corresponding [MCl(NHC)(COD)] and [MCl(NHC)(CO)2] complexes (M = Ir, Rh). The presence of the pyrene ... -
A redox-switchable catalyst with an 'unplugged' redox tag
Gutiérrez Peña, Cristian Leonardo; Poyatos, Macarena; Peris, Eduardo Royal Society of Chemistry (2022-08-24)Two bis-(propyl-imidazolium)-napthalenediimide (NDI) salts were prepared and used as N-heterocyclic carbene (NHC) precursors for the preparation of dimetallic complexes of rhodium and iridium. Infrared spectroelectrochemical ... -
A Redox-Switchable Gold(I) Complex for the Hydroamination of Acetylenes: A Convenient Way for Studying Ligand-Derived Electronic Effects
Ruiz Zambrana, César Luís; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2022-03-31)A gold complex with a naphthalene-di-imide-functionalized N-heterocyclic carbene (NHC) ligand was prepared and characterized. The electrochemical studies reveal that the complex is able to undergo two successive reduction ... -
A Tetracyclic Bis(imidazolindiylidene) Ligand and Its Diiridium and Dipalladium Complexes
Valdés Rivas, Hugo Christian; Peris, Eduardo; Poyatos, Macarena American Chemical Society (2013)A bis(imidazolidine) with two butylene linkers between the nitrogen atoms of the adjacent heterocycles has been prepared. This tetracyclic molecule can be coordinated to iridium and palladium following two different ... -
A Twisted Tetragold Cyclophane from a Fused BisImidazolindiylidene
Gutiérrez-Blanco, Ana; Ibáñez, Susana; Hahn, Franz Ekkehardt; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2019)The reaction between an angular bis-imidazolidinium salt and [AuCl(SMe)2] allowed the preparation of a discrete digold complex, with a rigid angular bridging bis-imidazolindiylidene ligand. This complex reacts with ... -
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 ... -
Cation-Driven Self-Assembly of a Gold(I)-Based Metallo-Tweezer
Ibáñez, Susana; Poyatos, Macarena; Peris, Eduardo Wiley (2017-08-07)A combination of self-complementary pi-pi-stacking interactions and metallophilic interactions triggered the self-assembly of a new digold(I) metallo-tweezer in the presence of several types of M+ ions. Titrations by ... -
Cp*Ir(NHC) complexes as highly versatile and efficient catalysts for the cross-coupling of alcohols and amines
Prades Ferrer, Amparo; Corberán Roc, Rosa; Poyatos, Macarena; Peris, Eduardo Wiley-VCH (2008-11-19)A comparative study on the catalytic activity of a series of Cp*Ir(NHC)Cl2 complexes in several C-O and C-N coupling processes implying hydrogen-borrowing mechanisms has been performed. The compound Cp*Ir(InBu)Cl2 (InBu ... -
Dehydrative coupling of alcohols by Iridium(III) complexes with N-Heterocyclic-Pyridine chelating ligands decorated with Naphthalene-Diimide
Gutiérrez Peña, Cristian Leonardo; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2023-05-25)A series of dimetallic and monometallic Cp*Ir(III) complexes bearing naphthalene-diimide-decorated N-heterocyclic carbene/pyridine [NDI-(NHC-pyridine)] ligands were prepared and characterized. The complexes show a C,C-chelating ... -
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 ... -
Empleo del visualizador gráfico Jmol en las clases de simetría molecular
Poyatos, Macarena; Julian-Lopez, Beatriz Educación Editora (2014)El presente trabajo divulga la innovación educativa que se ha desarrollado en la asignatura Química Inorgánica III (QU0924) del tercer curso del Grado en Química en el curso académico 2013/2014, de la Universitat Jaume I ... -
Experimental and Theoretical Approaches to the Influence of the Addition of Pyrene to a Series of Pd and Ni NHC-Based Complexes: Catalytic Consequences
Valdés Rivas, Hugo Christian; Poyatos, Macarena; Ujaque, Gregori; Peris, Eduardo Wiley (2014-11-20)A series of Ni and Pd complexes with three different N-heterocyclic carbene (NHC)-based ligands (imidazolylidene, benzimidazolylidene and pyrene–imidazolylidene) has been prepared and fully characterized. The influence of ... -
Ferrocenyl-Imidazolylidene Ligand for Redox-Switchable Gold-Based Catalysis. A Detailed Study on the Redox-Switching Abilities of the Ligand
Ibáñez, Susana; Poyatos, Macarena; Dawe, Louise N.; Gusev, Dmitry; Peris, Eduardo American Chemical Society (2016)An imidazolium salt with a fused benzoferrocenyl was synthesized. This compound was used as an N-heterocyclic carbene (NHC) precursor, and the related ferrocenyl-imidazolylidene complexes Fc-NHC-MLn (MLn = IrCl(COD), ... -
Fluorescent Pyrene-Based Bis-azole Compounds: Synthesis and Photophysical Analysis
Ibáñez, Susana; Guerrero, Antonio; Poyatos, Macarena; Peris, Eduardo Wiley (2015-06-10)A rational synthetic procedure for the preparation of a series of pyrene-based neutral and dicationic bis-azole compounds is reported. The method allows the tailored design of pyrene-based azoles with different substituents ... -
Gold Catalysts with Polyaromatic-NHC ligands. Enhancement of Activity by Addition of Pyrene
Ibáñez, Susana; Poyatos, Macarena; Peris, Eduardo American Chemical Society (2017)Three Au(I) complexes with N-heterocyclic carbene ligands fused to polycyclic aromatic hydrocarbons (pyrene and phenanthrophenazine) have been obtained and fully characterized. The complexes were tested as catalysts in ... -
Gold(I) Metallo‐Tweezers for the Recognition of Functionalized Polycyclic Aromatic Hydrocarbons by Combined π–π Stacking and H‐Bonding
Biz, Chiara; Ibáñez, Susana; Poyatos, Macarena; Gusev, Dmitry; Peris, Eduardo Wiley (2017)Two gold(I)‐based metallo‐tweezers with bis(Au−NHC) pincers and a carbazole connector have been obtained and used for the recognition of polycyclic aromatic hydrocarbons (PAHs). In the case of the tweezer with pyrene–NHC ... -
Imidazolidines as hydride sources for the formation of late transition-metal monohydrides
Poyatos, Macarena; Prades Ferrer, Amparo; Gonell, Sergio; Gusev, Dmitry; Peris, Eduardo Royal Society of Chemistry (2012)The reaction of a series of imidazolidines with chloro-complexes of Ir, Rh and Ru affords the clean generation of the corresponding monohydrido metal species. Computational analysis of the reduction process suggests that ...