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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 ...
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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 ...

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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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 ...
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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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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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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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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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1,1-Diphenyl-4-(thiophen-2-yl)but-3-yn-1-ol 

Umaña, Christian A.; Pineda Cedeño, Leslie William; Cabezas Pizarro, Jorge A. (2018-11)
The asymmetric unit of the title homopropargyl alcohol, C20H16OS, contains two independent molecules comprising a hydroxy group, a 3-(2-thiophenyl)- propargylic moiety and two aromatic rings linked to a central carbon atom. ...
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Pineda Cedeño, Leslie William (22)
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

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Universidad de Costa Rica