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Crystal structure of 4-[(adamantan-1-yl)amino]naphthalene-1,2-dione 

Lamoureux Lamontagne, Guy; Pineda Cedeño, Leslie William; Alvarado Rojas, Mónica (2019)
The title compound, C20H21NO2, an example of a stable 1,2-naphthoquinone, was determined by single-crystal X-ray diffraction analysis at 100 K. This structure illustrates steric buttressing of the adamantanyl group, forcing ...

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 ...
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Monomeric Germanium(II) Amides Bearing β-Diketiminato Ligands: Synthesis, Structural Characterization, and Thermal Properties 

Ballestero Martínez, Ernesto; Klosin, Jerzy; Fahlman, Bradley D.; Pineda Cedeño, Leslie William (2014-09)
Germanium(II) compounds featuring β-diketiminate-type ligands are attractive for applications as nanoparticle precursors, imaging agents, and components of electronic devices. In this work, we report the synthesis of ...
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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 ...
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Harnessing titanium dioxide surface toward novel functional materials 

Solera Rojas, José Andrés; Rapp, Christin K.; Rivera Martínez, M. Cinthya; Pineda Cedeño, Leslie William (2015)
The ever-increasing worldwide energy consumption has led the society to quest for novel and functional materials that can be used in the development of solar fuels to some extent lessen the dependence on fossil fuels. In ...

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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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 ...
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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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μ2-Chlorido-chlorido­(μ2-4-{[2-(di­ethyl­amino)­eth­yl]imino}­pent-2-en-2-olato)bis­(tetra­hydro­furan-κO)cobalt(II)lithium 

Vinocour Pacheco, Felipe Andrés; Soto Navarro, Andrea; Pineda Cedeño, Leslie William (2018)
The crystal structure of the title compound, [CoLi(C11H21N2O)Cl2(C4H8O)2], has monoclinic symmetry and comprises one heterometallic binuclear complex mol­ecule in the asymmetric unit. The Co2+ cation is bonded to one oxygen ...
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Pineda Cedeño, Leslie William (25)
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  • Repositorios universitarios

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Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.