Now showing items 1495-1514 of 2727

    • Atria Salas, Ana María; Spodine Spiridonova, Evgenia; Garland, María Teresa; Manzur Saffie, Jorge; Baggio, Ricardo; Peña, Octavio (1996)
      The preparation of the copper(II) complex formulated as [Cu(DPA)(Ac)2]·2H2O is given (DPA: di(2-pyridyl)amine, Ac: acetate). The structure of this complex was determined by single-crystal X-ray analysis. It crystallizes ...
    • Cortés, Piedad; Atria Salas, Ana María; Contreras, M.; Peña, Octavio; Fernández, Katia; Corsini, Gino (SOC CHILENA QUIMICA, 2008-06)
      The preparation, magnetic characterization and antimicrobial properties of the complexes [Fe3O(CH3COO)(6)(CH3COOH)(H2O)]Cl(Melmid)center dot(H2O) (1) and [Fe4O2 (CH3COO)(7)O-2(BPA)(2)(H2O)]center dot Cl center dot ...
    • Fuentealba Rosas, Patricio; Cortés, C.; Manzur Saffie, Jorge; Paredes García, Verónica; Venegas Yazigi, Diego; Silva, I. D.; De Santana, R.; Magon, Claudio; Spodine Spiridonova, Evgenia (Royal Society of Chemistry, 2017)
      In this work the magnetic properties of bimetallic phases M'0.2Mn0.8PS3 center dot 0.25H(2)O (M' = Co-II, Ni-II, Cu-II or Zn-II) have been explored and compared with those of the pristine phase MnPS3. Magnetic susceptibility, ...
    • Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Ushak, Svetlana; Le Fur, Eric; Pivan, Jean-Yves (ELSEVIER, 2006-10-01)
      The structure and magnetic properties of two hybrid VPO compounds [(Cu(2)bipy(2))(2)V4O11(PO4)(2)]center dot 5H(2)0 1 and [Cu(2)phen(2)(O3PCH2PO3)(V2O5)(H2O)] center dot H2O 2 are reported. The magnetic behaviour of compound ...
    • Haase, W.; Griesar, K.; Soto Bustamante, Eduardo; Galyametdinov, Y. (GORDON BREACH SCI PUBL LTD, 1995)
      In this contribution, magnetic investigations on materials, which essentially combine mesogenic and polymeric properties, were presented. In the glassy and the smectic phase of a copper(II) containing polymer we observed ...
    • Calderon Rosas, Carla; Franzreb, Matthias; Valenzuela, Fernando; Höll, Wolfgang (2010)
      Manganese dioxide (δ-MnO2) with magnetic properties has been synthesized by precipitation of MnO2 in the presence of magnetite. The resulting material has a particle size distribution between 0.5 and 5 μm. Magnetization ...
    • Barreto, Antônio C.H.; Santiago, Vivian R.; Freire, Rafael M.; Mazzetto, Selma E.; Denardin, Juliano C.; Mele, Giuseppe; Cavalcante, Igor M.; Ribeiro, Maria E.N.P.; Ricardo, Nágila M.P.S.; Gonçalves, Tamara; Carbone, Luigi; Lemos, Telma L.G.; Pessoa, Otília D.L.; Fech (2013)
      This paper describes the investigation and development of a novel magnetic drug delivery nanosystem (labeled as MO-20) for cancer therapy. The drug employed was oncocalyxone A (onco A), which was isolated from Auxemma ...
    • Cortés, Piedad; Atria Salas, Ana María; Contreras, M.; Garland, María Teresa; Peña, Octavio; Corsini, Gino (SOCIEDAD CHILENA DE QUIMICA, 2006-09)
      A series of three tetranuclear Cu(II) complexes of general formula [Cu4OCl6L4], where L is a Lewis Base ligand has been characterized through magnetic measurements and determination of antimicrobial activities. This study ...
    • Calvo Pérez, Víctor; Spodine Spiridonova, Evgenia (ELSEVIER SCIENCE SA, 2000-12-15)
      The crystalline ion pair [Co-2{OOC-CCo3(CO)(9)}(5), C10H6(N(CH3)(2))(2)H] (1) presents unusual magnetic properties. The X-band EPR spectrum of 1 at room temperature presents two unresolved bands at g = 1.98 and 4.55. At a ...
    • Calvo Pérez, Víctor; Spodine Spiridonova, Evgenia (2000)
      The crystalline ion pair [Co2{OOC-CCo3(CO)9}5, C10H6(N(CH3)2)2H] (1) presents unusual magnetic properties. The X-band EPR spectrum of 1 at room temperature presents two unresolved bands at g = 1.98 and 4.55. At a low ...
    • Spodine Spiridonova, Evgenia; Atria Salas, Ana María; Manzur Saffie, Jorge; García, Ana; Garland, María Teresa; Hocquet, Alexandre; Sanhueza, Eduardo; Baggio, Ricardo; Peña, Octavio; Saillard, Jean (1997)
      A new hexadentate ligand 3,6-bis[(6-methyl-2-pyridyl)(2-pyridyl)methyl]pyridazine (mbdpdz) was prepared by a condensation reaction of 3,6-dichloropyridazine and (6-methyl-2-pyridyl)(2-pyridyl)methyllithium, and the following ...
    • Spodine Spiridonova, Evgenia; Atria Salas, Ana María; Valenzuela Pedevila, Jorge; Jalocha, J.; Manzur Saffie, Jorge; García, A. M.; Garland, María Teresa; Peña, Octavio; Saillard, J. Y. (ROYAL SOC CHEMISTRY, 1999-09-07)
      Three new copper(II) complexes with simple pyrazolate bridges have been prepared, [Cu-2(pz)(2)(dpa)(2)(H2O)Cl]Cl . H2O 1, [Cu-2(pz)(2)(phen)(2)Cl-2]. 2C(2)H(5)OH 2 and [Cu-2(pz)(phen)(2)Cl-3]. 2H(2)O 3 (Hpz = pyrazole, dpa ...
    • 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 ...
    • Moreno, Yanko; Vega, Andrés; Ushak, Svetlana; Baggio, Ricardo; Peña, Octavio; Le Fur, Eric; Pivan, Jean; Spodine Spiridonova, Evgenia (2003)
      Hydrothermal synthesis has allowed us to isolate and characterize three new inorganic organic hybrid materials, the compounds [Cu-2(phen)(2)(H2O)(2)(H2PO4)(2)](NO3)(2).2H(2)O (1), [(Cu(2)bipy(2))(2)(V4O9)(PO4)(2)(HPO4)(H ...
    • Manzur Saffie, Jorge; García, A.; Garland, María Teresa; Acuña, V.; Gonzalez, O.; Peña, Octavio; Atria Salas, Ana María; Spodine Spiridonova, Evgenia (Elsevier Ltd, 1996)
      The title compound [Cu2C19H20N6O7Cl](2) is a copper(II) complex, in which each bicationic moiety is bridged by two pyrazolate ligands. In the centrosymmetric, tetrameric dications pairs of copper atoms, one square planar ...
    • Riveros,; Warczok, (2007)
      The evacuation of liquid metals or mattes from metallurgical furnaces presents many operational challenges due to safety issues and the fast destruction of tapping blocks. Particularly, a continuous smelting and converting ...
    • Wende, Adam R.; Schell, John C.; Ha, Chae-Myeong; Pepin, Mark E.; Khalimonchuk, Oleh; Schwertz, Hansjörg; Pereira, Renata O.; Brahma, Manoja K.; Tuinei, Joseph; Contreras Ferrat, Ariel Eduardo; Wang, Li; Andrizzi, Chase A.; Olsen, Curtis D.; Bradley, Wayne E.; Dell’Italia, Louis J.; Dillmann, Wolfgang H.; Litwin, Sheldon E.; Abel, E. Dale (American Diabetes Association, 2020)
      Cardiac glucose uptake and oxidation are reduced in diabetes despite hyperglycemia. Mitochondrial dysfunction contributes to heart failure in diabetes. It is unclear whether these changes are adaptive or maladaptive. To ...
    • Chaudhry, Farhan; Lavandero González, Sergio; Xie, Xiang; Sabharwal, Basera; Zheng, Ying-Ying; Correa, Ashish; Narula, Jagat; Levy, Phillip (BMJ, 2020)
      SARS-CoV-2 is the virus responsible for the ongoing COVID-19 outbreak. The virus uses ACE2 receptor for viral entry. ACE2 is part of the counter-regulatory renin-angiotensin-aldosterone system and is also expressed in the ...
    • Ovalle Marín, A.; Reyes Farías, M.; Vásquez, K.; Parra Ruiz, C.; Quitral, V.; Jiménez, P.; García, L.; Ramírez, L. A.; Quezada, J.; González Muniesa, P.; García Díaz, D. F. (IOS Press, 2020)
      BACKGROUND: Obesity occurs due to a positive energy imbalance, leading to the expansion of adipose tissue. This phenomenon triggers a chronic low-grade inflammatory state, which is associated with comorbidities development. ...
    • Stehr, Carlos B.; Carvajal, Cristián A.; Lacourt, Patricia; Alcaíno Gálvez, Hernán Alejandro; Mellado, Rose Marie; Cattani, Andreína; Mosso, Lorena; Lavandero González, Sergio; Fardella, Carlos E. (SOC MEDICA SANTIAGO, 2008-09)
      Type I familial hyperaldosteronism is caused by the presence of a chimaeric gene CYP11B1/CYP11B2 which encodes an enzyme with aldosterone synthetase activity regulated by adrenocorticotrophic hormone (ACTH). Therefore, ...