Browsing by Author "Paredes García, Verónica"
Now showing items 1-20 of 21
-
Venegas Yazigi, Diego; Spodine Spiridonova, Evgenia; Saldias, Marianela; Vega, Andrés; Paredes García, Verónica; Calvo, Rafael; Santana, Ricardo Costa de (American Chemical Society, 2015)We report the crystal face indexing and molecular spatial orientation, magnetic properties, electron paramagnetic resonance (EPR) spectra, and density functional theory (DFT) calculations of two previously reported oxovanadium ...
-
Cancino, Patricio; Paredes García, Verónica; Aguirre, Pedro; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2014)The metal-organic framework [Cu2(bipy)2(btec)] ∞ was used as a heterogeneous catalyst in the liquid phase oxidation of styrene and cyclohexene with tert-butylhydroperoxide (TBHP) as the oxidant either in water-dichloroethane ...
-
Silva Galaz, Cristian; Saldías, Marianela; Freire, Eleonora; Baggio, Ricardo; Le Fur, E.; Paredes García, Verónica; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego (2013)In the present paper a copper(II) phosphovanadate is presented and formulated as [Cu-6(phen)(6)((VO2)-O-v)(6) (PO4)(6)((VO2HO)-O-v)(3)] (1a). This compound was obtained by hydrothermal synthesis and crystallizes in the ...
-
Hermosilla-Ibáñez, Patricio; Cañon Mancisidor, Walter; Costamagna, Juan; Vega, Andrés; Paredes García, Verónica; Garland, María Teresa; Le Fur, Eric; Cador, Olivier; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego (Royal Society of Chemistry, 2014)In the present work, the synthesis and structural characterization of four new polyoxovanadoborate (BVO) frameworks based on the [V12B 18O60H6]10- polyanion are reported: (NH4)8(1,3-diapH2)[V12B 18O60H6]·5H2O (1), K ...
-
Paredes García, Verónica; Vega, Andrés; Novak, Miguel A.; Vaz, Maria G.F.; Souza, Denise A.; Venegas Yazigi, Diego; Spodine Spiridonova, Evgenia (2009)A structural and magnetic characterization of a trinuclear chiral Mn(ll) formate three-dimensional framework exhibiting a triangular arrangement is presented. Compound Na3[Mn3(HCOO)9] was obtained by solvothermal synthesis ...
-
Brown, Kareen; Zolezzi Carvallo, Santiago; Aguirre, Pedro; Venegas Yazigi, Diego; Paredes García, Verónica; Baggio, Ricardo; Novak, Miguel; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2009)A new extended metal-organic framework [Cu(H(2)btec)(bipy)](infinity) (1) (H(4)btec=1,2,4,5-benzenetetracarboxylic acid; bipy= 2,2'-bipyridine) has been hydrothermally synthesized. Violet crystals are formed in a monoclinic ...
-
Paredes García, Verónica; Latorre, Ramón; Spodine Spiridonova, Evgenia (2004)A series of dinuclear iron (III) complexes with carboxylate bridges, of the type [Fe2L2(H20)4](NO 3)2(H2O)m (m=1-3), where L=Schiff base derived from L-α-amino acids and salicylaldehyde have been prepared and characterised ...
-
Paredes García, Verónica; Venegas Yazigi, Diego; Latorre, Ramón; Spodine Spiridonova, Evgenia (PERGAMON-ELSEVIER SCIENCE LTD, 2006-06-19)Mixed valence dinuclear iron(II,III) complexes of the type [Fe2L2(H2O)(4)](NO3)(H2O)(3), where L is the dianion of a Schiff base ligand derived from alpha-amino acids (glycine and L-isolecine) and 5-bromosalicylaldehyde, ...
-
Fuentealba, Pablo; Cortés, Catalina; Audebrand, Nathalie; Le Fur, Eric; Paredes García, Verónica; Venegas Yazigi, Diego; Manzur Saffie, Jorge; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2015)M′0.2Mn 0.8PS3·0.25H2O materials are obtained by a mild microwave assisted reaction (M′ = CoII, NiII, CuII, ZnII), which permitted us to obtain the first copper(ii) bimetallic phase. All these materials have a lower energy ...
-
Cancino, P.; Paredes García, Verónica; Aliaga, C.; Aguirre, P.; Aravena, D.; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2017)© The Royal Society of Chemistry 2017.{[Cu3Ln2(oda)6(H2O)6]•nH2O}n (LnIII: La, Gd, Yb; odaH2: oxydiacetic acid) are reported as reusable heterogeneous catalysts in the oxidation of olefins. An influence of the LnIII ion ...
-
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 ...
-
Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Ushak, S.; Paredes García, Verónica; Saldías, Marianela; Le Fur, Eric; Pivan b, J.Y. (PERGAMON-ELSEVIER SCIENCE LTD, 2007-06)The hybrid organo-inorganic compounds [Cu4(bipy)4V4O11(PO4)2]nH2O (n 5) (1), [Cu2(phen)2(PO4)(H2PO4)2(VO2) Æ 2H2O] (2) and [Cu2(phen)2(O3PCH2PO3)(V2O5) (H2O)]H2O (3) which present different bridging forms of the ...
-
Venegas Yazigi, Diego; Cortés, Susana; Paredes García, Verónica; Peña, Octavio; Ibáñez, Andrés; Baggio, Ricardo; Spodine Spiridonova, Evgenia (PERGAMON-ELSEVIER SCIENCE LTD, 2006-07-10)A group of dinuclear copper(II) compounds containing the macrocyclic complexes Cu2L2+ (LH2 = C(24)H(2)sN(4)O(4): a ligand derived from the condensation of 4-methyl-2,6-diformylphenol with 1,3-diamine-2-propanol) have been ...
-
Castillo, C.; Seguin, K.; Aguirre Álvarez, Pedro; Venegas Yazigi, Diego; Viegas, A. D. C.; Spodine Spiridonova, Evgenia; Paredes García, Verónica (Royal Soc Chemistry, 2015)In this study, we are reporting the synthesis and characterization of nanocomposites obtained from the direct reduction of nickel(II) salts on matrices of polyethylene (Pe) and chitosan (Ch) in the presence of serine ...
-
Paredes García, Verónica; Venegas Yazigi, Diego; Cabrera, A.; Valencia Gálvez, P.; Arriagada, M.; Ruiz León, Domingo; Zanocco Loyola, Antonio; Spodine Spiridonova, Evgenia (2009)In this work, we present the synthesis and optical study of the binuclear zinc(II) macrocyclic complexes, derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene (H2L). Two zinc macrocyclic complexes with different ...
-
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 = ...
-
Paredes García, Verónica; Santana, Ricardo C.; Madrid, Rosa; Baldo, Bianca; Vega, Andrés; Spodine Spiridonova, Evgenia (2012)EPR measurements have been performed on single crystals of [Cu(L-tyrosine)2]az at 33.8 GHz and at room temperature. The EPR spectra display partially resolved EPR lines for most orientations of the magnetic field in the ...
-
Moraga Cruz, Carlos; Spodine Spiridonova, Evgenia; Audebrand, Nathalie; Venegas Yazigi, Diego; Paredes García, Verónica (American Chemical Society, 2018)In the present work, we report the synthesis and characterization of two new heterometallic coordination polymers based on Ce-III and containing Co-II or Cu-II cations, assembled by the bifunctional ligand 1H-imidazole-4 ...
-
Cancino, Patricio; Spodine Spiridonova, Evgenia; Paredes García, Verónica; Venegas Yazigi, Diego; Vega, Andrés (2013)In the structure of the title compound, {[Cu-2(C10H2O8)-(H2O)(6)]center dot 4H(2)O}(n), the benzene-1,2,4,5-tetracarboxylate ligand, (btec)(4-), is located on a crystallographic inversion centre in a 4-coordination mode. ...
-
Cañon Mancisidor, Walter; Spodine Spiridonova, Evgenia; Paredes García, Verónica; Venegas Yazigi, Diego (Springer, 2013)A theoretical study of the magnetic properties, using density functional theory, of a family of trinuclear μ3-OH copper(II) complexes reported in the literature is presented. The reported X-ray crystal structures ...