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Crystal structures and biological activity of 1,1,4-tri­phenyl-substituted 1,3-enyne com­pounds 

Pineda Cedeño, Leslie William; Arias Echandi, María Laura; Cabezas Pizarro, Jorge A. (2019)
1,3-Enyne structural motifs are versatile building blocks in organic synthesis and occur widely in various natural products with many of them being highly active as cytotoxic macrolides and antitumour antibiotics. This ...

Co-adsorbing effect of bile acids containing bulky amide groups at 3β-position on the photovoltaic performance in dye-sensitized solar cells 

Soto Navarro, Andrea; Alfaro Vargas, Ariel; Soto Tellini, Victor Hugo; Moehl, Thomas; Barea, Eva M.; Fabregat Santiago, Francisco; Pineda Cedeño, Leslie William (2019)
Co-adsorbing molecules attain certain control in the surrounding of the dyes leading to enhanced efficiencies mainly by affecting the recombination of the photogenerated electrons and aggregation of dyes. Bile acids ...
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Bis(μ2-benzoato-κ2O,O′)bis­(benzoato-κO)bis(ethanol-κO)bis­(μ3-hydroxido)hexa­kis­(μ-pyrazol­ato-κ2N,N′)hexa­copper(II) ethanol disolvate 

Ledezma Gairaud, Marisol; Pineda Cedeño, Leslie William (2019)
Trinuclear copper–pyrazolate entities are present in various Cu-based enzymes and nanojar supra­molecular arrangements. The reaction of copper(II) chloride with pyrazole (pzH) and sodium benzoate (benzNa) assisted by ...
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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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1-Nitro-4-(1-propyn-1-yl)benzene 

Campos Fernández, Cristian Saul; Pineda Cedeño, Leslie William; Cabezas Pizarro, Jorge A. (2019)
The title compound, C9H7NO2, was prepared by alkynylation of 4-iodo­nitro­benzene with 1,3-dili­thio­propyne in the presence of 1 equivalent of CuI and catalytic amounts of Pd(PPh3)2Cl2. The complete mol­ecule is generated ...

Synthesis and characterization of new mixed-valent Mn(II)/Mn(III) and mixed metal Ni/Mn complexes 

Ledezma Gairaud, Marisol; Pineda Cedeño, Leslie William; Aromí, Guillem; Sañudo, E. Carolina (2015)
Microwave assisted synthesis and bench-top reactions are compared for Mn and Mn/Ni reaction systems with substituted salicylic acid (2-hydroxy-6-isopropyl-3-methylbenzoic-acid (SALOH2). When Mn salts are used, the microwave ...
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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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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 ...

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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Pineda Cedeño, Leslie William (21)
Cabezas Pizarro, Jorge A. (5)Ledezma Gairaud, Marisol (5)Lamoureux Lamontagne, Guy (3)Solera Rojas, José Andrés (3)Soto Navarro, Andrea (3)Umaña, Christian A. (3)Alvarado Rojas, Mónica (2)Aromí, Guillem (2)Moehl, Thomas (2)... View MoreType
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  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
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  • Repositorio Documental Rafael Obregón Loría (CIHAC)
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  • @Ciencia_UCR
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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.
Universidad de Costa Rica