Browsing by Author "Vega, Andrés"
Now showing items 1-17 of 17
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Donoso Tauda, Oscar; Escobar, Carlos A.; Araya Maturana, Ramiro; Vega, Andrés (BLACKWELL PUBLISHING, 2006-10)The molecule of the title compound, C19H20O2S, corresponds to a chiral sulfinyldienol with two stereogenic centres, viz. the C atom susbtituted by the hydroxy group and the sulfinyl S atom. The molecule displays a V-shape ...
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4-(2-Hydroxyphenyl)-2-phenyl-2,3-dihydro-1H-1,5-benzodiazepine and the 2-(2,3-dimethoxyphenyl)-, ... Escobar, C. A.; Donoso Tauda, Oscar; Araya Maturana, Ramiro; Vega, Andrés (BLACKWELL PUBLISHING, 2007-07)The 1,5-benzodiazepine ring system exhibits a puckered boatlike conformation for all four title compounds [4-(2-hydroxyphenyl)2- phenyl-2,3-dihydro-1H-1,5-benzodiazepine, C21H18N2O, (I), 2-(2,3-dimethoxyphenyl)-4-(2-hydr ...
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Vega, Andrés; Ramírez Rodríguez, Oney; Martínez Cifuentes, Maximiliano; Ibáñez, Andrés; Araya Maturana, Ramiro (WILEY-BLACKWELL PUBLISHING, INC, 2009-02)The title molecule, C14H14O3, contains two fused six-membered carbon rings with keto groups at positions 1, 4 and 5 and a gem-diethyl group at position 8. The molecule is close to planar (maximum deviation = 0.044 angstrom), ...
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Ramírez Rodríguez, Oney; Martínez Cifuentes, Maximiliano; Ibáñez, A.; Vega, Andrés; Araya Maturana, Ramiro (BLACKWELL PUBLISHING, 2008-07)In the title molecule, C16H16O3, the ring system is planar and an intramolecular hydrogen bond is present. The molecular packing is dominated by an intermolecular hydrogen bond and by pi-stacking interactions [interplanar ...
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Calvo Pérez, Víctor; Vega, Andrés; Spodine Spiridonova, Evgenia (AMER CHEMICAL SOC, 2006-04-10)Three structures of novel cluster carboxylates of molybdenum(II) (la-c) and copper(II) (2) with the OOC-CCHCo2(CO)(6) ligand are presented. The solvent topology plays an important role in the formation of the crystal lattice ...
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Calvo Pérez, Víctor; Vega, Andrés; Cortés, Piedad; Spodine Spiridonova, Evgenia (Elsevier S.A., 2002)Reaction of propiolic acid (HCCCOOH) with dicobalt octacarbonyl (Co 2(CO)8) and tetracobalt dodecacarbonyl (Co 4(CO)12) leads to the organometallic carboxylic acids (CO)6Co2HCC-COOH (1) and (CO)10Co 4HCC-COOH (2) in good ...
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Calvo Pérez, Víctor; Cortés, P.; Moreno N., Yanko; Vega, Andrés; Spodine Spiridonova, Evgenia (SOCIEDAD CHILENA DE QUIMICA, 2000-06)Copper(ll) trifluoroacetate with three coordinated water molecules and two dioxane molecules (1) crystallized as a linear chain surrounded by a net of hydrogen bonds to the dioxane and trifluoroacetate. This-complex ...
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Cancino, Patricio; Spodine Spiridonova, Evgenia; Paredes García, Verónica; Venegas Yazigi, Diego; Vega, Andrés (International Union of Crystallography, 2013)In the structure of the title compound, {[Cu2(C10H2O8)- (H2O)6] 4H2O}n, the benzene-1,2,4,5-tetracarboxylate ligand, (btec)4 , is located on a crystallographic inversion centre in a 4-coordination mode. The coordination ...
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Vega, Andrés; Calvo Pérez, Víctor; Spodine Spiridonova, Evgenia; Zárate, Antonio; Fuenzalida Escobar, Víctor; Saillard, Jean-Yves (2002)The reaction of the organometallic carboxylic acid HOOCCCHCo2(CO)6 with copper(II) methoxide leads to a new inorganometallic cluster; Cu3{í2-(CCHCo2(CO)6)}3. This cluster has a triangular core of copper(I) centers ...
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Calvo Pérez, Víctor; Ostrovsky, Sergei; Vega, Andrés; Pelikan, Juraj; Spodine Spiridonova, Evgenia; Haase, W. (AMER CHEMICAL SOC,, 2006-01-23)The trimer [Co-3(mu-OOCCF3)(4)(mu-H2O)(2)(OOCCF3)(2)(H2O)(2)(C4H8O2)]center dot 2C(4)H(8)O(2) (1) is composed of three tetragonally distorted Coll centers bridged by four trifluoroacetates and two bridging water molecules. ...
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Acosta, Alison; Antipán, Javier; Fernández, Mariano; Prado, Gaspar; Sandoval Altamirano, Catalina Paz; Gunther Sapunar, Germán; Gutiérrez Urrutia, Izabook; Poblete Castro, Ignacio; Vega, Andrés; Pizarro, Nancy (Royal Soc Chemistry, England, 2021)In this work, we describe the photoisomerization of facial rhenium(I) tricarbonyl complexes bearing P,Nbidentate pyridyl/phosphine ligands with different chelating rings and anions: RePNBr, RePNTfO, and RePNNBr, which ...
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Polyoxometalate cluster [V12B18O60H6] functionalized with the copper(II) bis-ethylenediamine complex Brown, Kareen; Car, Pierre Emmanuel; Vega, Andrés; Venegas Yazigi, Diego; Paredes García, Verónica; Vaz, María G.F.; Allao, Rafael A.; Pivan, Jean-Yves; Le Fur, Eric; Spodine Spiridonova, Evgenia (Elsevier, 2011)Three compounds based on the polyoxometalate building block [V12B18O60H6], (Na)10[(H2O)V12- B18O60H6] 18H2O (1), Na8[Cu(en)2]2[V12B18O60H6](NO3)2 14.7H2O (2), Na7[Cu(en)2]2[V12B18O60H6] (NO3) 15.5H2O (3), (en = ...
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Guajardo, Juana; Ibañez, Andrés; Guerchais, Veronique; Vega, Andrés; Palma Moya, Sergio; Aguirre, Pedro (Wiley-Blackwell, 2018)The reaction of 2-aminonicotinaldehyde with 2- or 4-methoxyacetophenone in basic media leads to the new ligands 2-(4-methoxyphenyl)-1,8-naphthyridine and 2-(2-methoxyphenyl)-1,8-naphthyridine, respectively, in high yield. ...
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Gallardo, Héctor; Cepeda Plaza, Marjorie; Nonell, Santi; Günther Sapunar, Germán; Chamorro, Eduardo; Pizarro, Nancy; Vega, Andrés (Elsevier, 2015)The multimetallic complex [[(CO)(3)(phen) Re(mu-Br)Re(phen)(CO)(3)][(CO)(3)[Re(mu-Br)(3)Re(CO)(3)]]center dot CH2Cl2 was prepared by direct reaction of (Re(CO)(3)(THF)Br)(2) (THF: tetrahydrofuran) and 1,10-phenanthroline ...
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Cañón Mancisidor, Walter Alberto; Gómez García, Carlos J.; Mínguez Espallargas, Guillermo; Vega, Andrés; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Coronado, Eugenio (The Royal Society of Chemistry, 2014)The addition of water to a chloroform solution of the Cu6 trigonal prism complex [Cu6(U6F)(U2OH)(U3OCH3)2(U2OCH3)2(3,5-Me2pz)6] (1) (3,5-Me2pz- = 3,5-dimethylpyrazolate) results in the formation of the Cu6 planar hexagonal ...
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Manzur, Carolina; Carrillo, David; Vega, Andrés; Garland, María Teresa (1999)[Mo(NNMePh)2Cl(PPh3)2]+CF 3SO3-·1/2H2O, [1]+CF3SO3-·1/2H 2O, has been synthesized by reaction of silver triflate, AgCF3SO3, with [Mo(NNMePh)2Cl2(PPh3)2] in CH2Cl2/CH3CN and subsequent isolation and recrystallization from ...
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Paredes García, Verónica; Santana, Ricardo C.; Madrid, Rosa; Vega, Andrés; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego (American Chemical Society, 2013)An unusual and unique conformation of a paddle wheel type binuclear copper(II) complex containing acetate and acetamido ligands, {Cu2(μ2-O2CCH3)4}(OCNH2CH3) (1), was obtained by solvothermal synthesis. The structural ...