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Neutral organic redox pairs based on sterically hindered hydroquinone/benzoquinone derivatives for dye-sensitized solar cells 

Flores Díaz, Natalie; Soto Navarro, Andrea; Freitag, Marina; Lamoureux Lamontagne, Guy; Pineda Cedeño, Leslie William (2018-06)
Substituted derivatives of hydroquinone/benzoquinone were studied as organic redox mediators in the electrolyte for dye-sensitized solar cells (DSSCs). Thus, di-tert-butylhydroquinone (DTHQ), thymohydroquinone (ThymHQ) and ...
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Synthesis and Crystal Structure of a Copper(II) Benzoate Complex Bearing a Bis-2,2′-Tetrahydrofuryl Peroxide Moiety 

Solera Rojas, José Andrés; Krause, Lennard; Montero Villalobos, Mavis Lili; Stalke, Dietmar; Pineda Cedeño, Leslie William (2018-12)
Complex [Cu2(ben)4·2THF−(η1–O2)]∞ (2) (ben=C6H5CO2− benzoate; THF=tetrahydrofuran) was isolated when a solution of Cu2(ben)4·2THF (1) in THF upon natural sunlight irradiation yields crystals suitable for single-crystal ...
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1,3-Bis{[(2,6-di­methyl­phen­yl)sulfan­yl]meth­yl}benzene 

Garita Salazar, Bruno; Pineda Cedeño, Leslie William (2019)
The structure of the title compound, C24H26S2, an example of a pincer ligand with an SCS-chelation motif, illustrates the steric effects of the methyl groups in the thio­phenyl rings at the 2- and 6-positions, forcing a ...
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Direct functionalization of Mn12-(methacrylate) clusters on Si(100): surface characterization and electrochemical properties 

Ledezma Gairaud, Marisol; Moehl, Thomas; Montero Villalobos, Mavis Lili; Pineda Cedeño, Leslie William (2016-09)
The reaction of H–terminated Si(100) with methacrylate–substituted manganese carboxylate clusters [Mn12O12{CH2C(CH3)COO}16(H2O)4], [Mn12–(methacrylate)] via hydrosilylation afforded Mn12–(methacrylate)−Si(100). The chemically ...

Dye‐sensitized Devices: Photovoltaic and Photoelectrolytic Applications 

Solera Rojas, José Andrés; Ledezma Gairaud, Marisol; Pineda Cedeño, Leslie William (2018-11)
Dye‐sensitized approach along with stability and surface robustness in titanium dioxide (TiO2) against photocorrosion and degradation has been widely studied and applied in several important applications. This chapter ...

Synthesis, structure and spectroscopic characterization of Ni(II), Co(II), Cu(II) and Zn(II) complexes with saccharinate and pyrazole 

Valle Bourrouet, Grettel; Pineda Cedeño, Leslie William; Falvello, Larry R.; Lusar, Rosa; Weyhermüller, Thomas (2007-09)
Four mononuclear mixed-ligand complexes of Co(II), Ni(II), Cu(II) and Zn(II), with saccharin (sac) and pyrazole (Hpz) were synthesized and characterized on the basis of elemental analysis, FT-IR spectroscopy, magnetic ...

Experimental and theoretical studies of C–H⋯M interactions in palladium and platinum complexes derived from 1,2-bis-(2-hydroxymethylphenylthio)ethane 

González Montiel, Simplicio; Martínez Otero, Diego; Andrade López, Noemí; Alvarado Rodríguez, José G.; Carmona Pichardo, Manuel; Cruz Borbolla, Julián; Pandiyan, Thangarasu; Pineda Cedeño, Leslie William (2015-02)
The molecular structures of several related cis-[j2-SS-(L)MHal2] compounds 1, 1DMSO, 2, 2H2O, 3DMSO, 4 and 5 where L = HOCH2Ph-S-CH2-CH2-S-PhCH2OH, M = Pd or Pt, and Hal = Cl or Br or I, were analyzed by single crystal ...
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N-[3-(Prop-1-yn-1-yl)phenyl]benzenesulfonamide 

Pineda Cedeño, Leslie William; Cabezas Pizarro, Jorge A. (2019)
In the title sulfanilamide derivative, C15H13NO2S, which shows significant activity against Staphylococcus aureus and Escherichia coli, the dihedral angle between the planes of the aromatic rings is 62.15 (19)° and the ...
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Tetra­aqua­bis­(2,3-di­hydro-1,4-benzodioxine-2-carboxyl­ato)calcium(II) 

Camargo Cortés, Esmit B.; Acosta, Mirna; Martínez, Juan C.; Pineda Cedeño, Leslie William (2020)
The acid–base reaction of 1,4-benzodioxane 2-carb­oxy­lic acid with calcium carbonate furnished the centrosymmetric title compound, [Ca(C9H7O4)2(H2O)4], in which the metal ion is octa­hedrally coordinated by two monodentate ...
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Fotorreducción de dióxido de carbono usando TiO2 sensibilizado con trímeros de Co y Cu en medio acuoso
Carbon dioxide photoreduction using TiO2 sensitized with Co and Cu trimers in aqueous media
Fotorredução de dióxido de carbono usando TiO2 sensibilizado com trímeros de Co e Cu em meio aquoso 

Rojas Sánchez, Carlos Enrique; Incer Valverde, Jimena; Pineda Cedeño, Leslie William; Durán Herrera, Esteban (2021-01-31)
En la presente investigación, se evaluó el desempeño de dos fotocatalizadores de dióxido de titanio, uno sensibilizado con un trímero de cobre (Cu3(dpa)4Cl2) (dpa = 2,2 ́-dipiridilamina) y el otro con un trímero de cobalto ...
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AuthorPineda Cedeño, Leslie William (27)Cabezas Pizarro, Jorge A. (7)Ledezma Gairaud, Marisol (6)Solera Rojas, José Andrés (4)Soto Navarro, Andrea (4)Lamoureux Lamontagne, Guy (3)Umaña, Christian A. (3)Alvarado Rojas, Mónica (2)Aromí, Guillem (2)Flores Díaz, Natalie (2)... View MoreTypeartículo científico (26)capítulo de libro (1)ProcedenceVicerrectoría de Docencia (27)Vicerrectoría de Investigación (26)... View MoreHas File(s)Yes (27)

  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.