Browsing by Author "3d42862f-53fd-42e9-9b65-1c66a843e586"
Now showing items 1-20 of 48
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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 ...
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A cyclic and polymeric phosphazene as solid state template for the formation of RuO2 nanoparticles Díaz, C.; Valenzuela, M. L.; Spodine Spiridonova, Evgenia; Moreno, Y.; Peña, O. (2007)Pyrolysis of the organometallic polymer: {{[N=P(R1)] 0.8[N=P(OC6H4CH2CN[Ru]) 2]0.15[N=P((OC6H5)(OC 6H4CH2CN[Ru]]0.05}{Cl} 0.31} n , [Ru]=CpRu(PPh3)2, R 1 = O2C12H8 (1) as well of the cyclic specie {N3P3 (OC6H5) ...
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Cancino, P.; Vega, Andrés; Santiago Portillo, Andrea; Navalon, Sergio; Alvaro, Mercedes; Aguirre Álvarez, Pedro; Spodine Spiridonova, Evgenia; García, Hermenegildo (Royal Society of Chemistry, 2016)The synthesis and structure of a novel heteronuclear Cu-II and La-III metal organic framework (MOF) having pyridinedicarboxylic acid (CuLa-MOF) is reported. The obtained MOF with the formula {[Cu0.5La2(HPDC)(PDC)(2)(SO4) ...
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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 ...
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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 ...
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Moreno, Yanko; Vega, Andrés; Spodine Spiridonova, Evgenia; Ushak, Esvetlana; Baggio, Ricardo (2004)The crystal structure of copper compound, [Cu2(VO 2)(HPO4)2 (NO3)(bpy)2].X was studied. These chemically isostructural systems were obtained by hydrothermal methods, which differ in the solvate molecules stabilizing the ...
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Gil, Yolimar; Fuentealba, Pablo; Vega, Andrés; Spodine Spiridonova, Evgenia; Aravena, Daniel (Royal Soc. Chemistry, 2020)A family of hexaazamacrocyclic lanthanide complexes, [Ln(L-n)(NCS)(3)] (Ln(III) = Dy, Er; n = 1-3) has been synthesized and characterized by single-crystal X-ray diffraction, magnetic measurements and ab initio calculations. ...
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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 ...
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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 ...
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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 ...
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Cruz, Carlos; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Paredes García, Verónica (Elsevier, 2017)A new CuII–GdIII heterometallic coordination polymer was obtained by a two-step synthesis, using the molecular complex [Cu(H2IDC)2(2,20-bipy)] 2H2O (1) as metalloligand and oxalate as auxiliary ligand (H3IDC = ...
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Santibáñez, Luis; Escalona, Néstor; Torres, Julia; Kremer, Carlos; Cancino, Patricio; Spodine Spiridonova, Evgenia (MDPI, 2020)The aerobic oxidation of cyclohexene was done using the heterometallic metal organic frameworks (MOFs) {[La2Cu3(mu-H2O)(ODA)(6)(H2O)(3)].3H(2)O}(n)(LaCuODA)) (1) and {[La2Co3(ODA)(6)(H2O)(6)].12H(2)O}(n)(LaCoODA) (2) as ...
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Cancino, P.; Paredes García, V.; Torres, J.; Martínez, S.; Kremer, C.; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2017)The catalytic performance of the novel framework {[Cu3Lu2(ODA)6(H2O)6]·10H2O}n was tested in the oxidation of alkenes and benzylic hydrocarbons, using tert-butyl hydroperoxide (TBHP) and molecular oxygen (O2) as oxidants. ...
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Gil Sánchez, Yolimar; LLanos, Leonel; Cancino Rivera, Patricio; Fuentealba Castro, Pablo; Vega, Andrés; Spodine Spiridonova, Evgenia; Aravena, Daniel (American Chemical Society, 2020)To study how second-sphere interactions affect single-molecule magnet (SMM) properties of mononuclear lanthanide systems, two dysprosium(III) complexes [Dy(N-NCS)(3)(H2O)(5)]center dot 0.45(KSCN)(18-crown-6) (1) and ...
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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 ...
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Manzur, Jorge; Poblete, Carolina; Morales, Jeannette; Costa de Santana, Ricardo; Queiroz Maia, Lauro June; Vega, Andrés; Fuentealba, Pablo; Spodine Spiridonova, Evgenia (American Chemical Society, 2020)A series of luminescent phenoxo-bridged dinuclear Tb-III complexes with tripodal ligands, 2,2'4 [(2-pyridinylmethyl)-imino]di(methylene)]-bis(4-R-phenol), where R = CH3 (L-CH3) (I), Cl (L-Cl) (II), CH3O (L-CH3O) (III), ...
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Zolezzi Carvallo, Santiago; Spodine Spiridonova, Evgenia; Decinti, Antonio (Elsevier Ltd, 2003)Copper(II) complexes with salen Schiff-base ligands derived from ethylenediamine or (S,S)-1,2-diphenylethylenediamine and salicylaldehyde or 5-methoxy, 5-bromo and 5-nitrosalicylaldehyde have been tested as catalysts for ...
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Venegas Yazigi, Diego; Brown, Kareen; Vega, Andrés; Calvo, Rafael; Aliaga, Carolina; Santana, Ricardo; Cardoso-Gil, Raul; Kniep, Rüdiger; Schnelle, Walter; Spodine Spiridonova, Evgenia (2011)Structural, magnetic, and powder and single-crystal electron paramagnetic resonance (EPR) studies were performed on [{Cu(bipy)(en)}{Cu(bipy)(H2O)}{VO3}(4)](n) (bipy = 2,2'-bipyridine, en = ethylenediamine), which is a new ...
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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 ...
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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 ...