Browsing by Author "1a6688f6-e822-4181-a059-1d6d6e2e2155"
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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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Pinto, C.; Galdámez Silva, Antonio; Barahona, P.; Moris, S.; Peña, O. (Elsevier, 2018)Selenospinels, CuCr2-xMxSe4 (M = Zr and Sn), were synthesized via conventional solid-state reactions. The crystal structure of CuCr1.5Sn0.5Se4, CuCr1.7Sn0.3Se4, CuCr1.5Zr0.5Se4, and CuCr1.8Zr0.2Se4 were determined using ...
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López-Vergara, F.; Galdámez, A.; Manríquez, V.; Barahona, P.; Peña, O. (Wiley-VCH Verlag, 2014)New solid solutions Cu2MnxFe1-xSnS4 were prepared by direct combination of the corresponding elements at 850°C. The crystal structure of Cu2Mn0.4Fe0.6SnS4 was determined by single-crystal X-ray diffraction. This phase is ...
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Ushak, S.; Spodine Spiridonova, Evgenia; Venegas Yazigi, Diego; Le Fur, E.; Pivan, J. Y.; Peña, O.; Cardoso-Gil, R.; Kniep, R. (Royal Society of Chemistry, 2005)The new hybrid organic-inorganic copper oxovanadium phosphates of composition Cu4(bipy)4V4O11(PO 4)2·nH2O (n ∼ 5) (1) and Cu 2(bipy)2V2P2O12 (2) (bipy = 2, 2′-bipyridine) adopting the triclinic symmetry were obtained by ...
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Valencia-Gálvez, P.; Peña, O.; Moris, S.; Barahona, P. (Sociedad Chilena de Quimica, 2019)Polycrystalline thiospinels CuCr2-xSnxS4 (x = 0.4, 0.8, 1.0 and 1.4) were synthesized via conventional solid-state reaction. The samples were characterized by powder X-ray diffraction (XRD), energy-dispersive X-ray analysis ...
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Díaz Valenzuela, Carlos; Valenzuela, M.L.; Laguna Becerro, M.A.; Orera, A.; Bobadilla, D.; Abarca, S.; Peña, O. (Royal Soc Chemistry, 2017)The simple reaction of chitosan with metallic salts yields (chitosan) (MLn)(x), MLn = MnCl2, CoCl2, NiCl2, macromolecular complexes which, after a thermal treatment at 800 degrees C under air, give nanostructured Mn2O3, ...