Now showing items 1-13 of 13

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      1,1,3,3-tetramethylguanidinium dihydrogenorthophosphate  [Article]

      Criado Vega, Alberto; Diánez Millán, María Jesús; Pérez Garrido, Simeón; Fernandes, I. M L; Belsley, Michael Scott; Matos Gomes, Etelvina M. de (International Union of Crystallography, 2000)
      In the title compound, C 5 H 14 N 3 + H 2 PO 4 ˇ , the cation has a central guanidinium fragment with a planar geometry, as expected for a central C sp 2 atom with a small ...
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      (1E,3E)-4-(tetra-O-acetyl-D-arabino-tetritol-1-yl)-1-(4-tolyl)-1,2-diaza-1, 3-butadiene  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; Pérez Garrido, Simeón (International Union of Crystallography, 2006)
      n the title compound, C 21 H 26 N 2 O 8 , the configurations of the three chiral centres are known from the synthesis, corre- sponding to a d - arabino configuration. Both double bonds show the E configuration ...
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      Applications of sample-controlled thermal analysis (SCTA) to kinetic analysis and synthesis of materials  [Article]

      Pérez Maqueda, Luis Allan; Criado Luque, José Manuel; Sánchez Jiménez, Pedro Enrique; Diánez Millán, María Jesús (Akadémiai Kiadó, 2015)
      The advantages of the sample-controlled thermal analysis (SCTA) for both the kinetic analysis of solid-state reactions and the synthesis of materials are reviewed. This method implies an intelligent control of the temperature ...
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      Benzyltrimethylammonium dihydrogen orthophosphate monohydrate  [Article]

      Criado Vega, Alberto; Diánez Millán, María Jesús; Estrada de Oya, María Dolores; Pérez Garrido, Simeón; Belsley, Michael Scott; Matos Gomes, Etelvina M. de (International Union of Crystallography, 2005)
      The title compound, C 10 H 16 N + H 2 PO 4 H 2 O, crystallizes in the centrosymmetric space group P 2 1 / c with two independent molecules in the asymmetric unit. Therefore, nonlinear ...
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      Development of a universal sample controlled thermal analysis (SCTA) system for being used with any thermoanalytical instrument  [Article]

      Criado Luque, José Manuel; Pérez Maqueda, Luis Allan; Diánez Millán, María Jesús; Sánchez Jiménez, Pedro Enrique (Akadémiai Kiadó, 2007)
      The SCTA method implies to control the te mperature in such a way that the reaction rate changes with the time according to a function previously defined by the user. Constant Rate Thermal Analysis ...
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      Direct mechanosynthesis of pure BiFeO3 perovskite nanoparticles: reaction mechanism  [Article]

      Perejón Pazo, Antonio; Murafa, Nataliya; Sánchez Jiménez, Pedro Enrique; Criado Luque, José Manuel; Diánez Millán, María Jesús; Pérez Maqueda, Luis Allan (Royal Society of Chemistry (Great Britain), 2013)
      In this work, a mechanochemical procedure is proposed as a simple and fast method to synthesize the pure BiFeO3 perovskite phase as a nanostructured material without the need for purification treatments, while the ...
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      Influencia de la adición de estaño en el proceso de precipitación en una aleación de Cu-Ni-Zn  [Article]

      Donoso, Eduardo; Diánez Millán, María Jesús; Criado Luque, José Manuel; Espinoza, Rodrigo; Mosquera, Edgar (Consejo Superior de Investigaciones Científicas, 2016)
      Mediante calorimetría diferencial de barrido (DSC), medidas de microdureza y microscopía electrónica de transmisión de alta resolución (HRTEM) se estudió la influencia de la adición de 1,1% en peso de estaño en el ...
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      Kinetic model for thermal dehydrochlorination of poly(vinyl chloride)  [Article]

      Sánchez Jiménez, Pedro Enrique; Perejón Pazo, Antonio; Criado Luque, José Manuel; Diánez Millán, María Jesús; Pérez Maqueda, Luis Allan (Elsevier, 2010)
      In this paper, a novel method for calculating degradation kinetics is presented. The method has been applied to the thermal dehydrochlorination of two different samples of PVC. It has been observed that this dehydrochlorination ...
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      Mechanochemical preparation of BaTiO3-Ni nanocomposites with high dielectric constant  [Article]

      Sánchez Jiménez, Pedro Enrique; Pérez Maqueda, Luis Allan; Diánez Millán, María Jesús; Perejón Pazo, Antonio; Criado Luque, José Manuel (Elsevier, 2010)
      A mechanochemical procedure is proposed for an easy preparation of a BaTiO3-Ni composite in a single step. BaTiO3 and Ni powders available in the market are mixed by dry ball milling producing a decrease of particle size ...
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      N-acetyl-2,3,4,6-tetra-O-acetyl-N-benzyl-β-D-glucopyranosylamine  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 1997)
      The solid-state conformation of the title compound, C23H29NOIo, has been unequivocally established. The configuration at C 1 is/3-D-glucopyranose and the pyranose ring is essentially a perfect chair. Only the E ...
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      N1,N1-Diethyl-N 2-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)acetamidine  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 2001)
      The PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803 have been crystallized and high-resolution structures have been obtained using X-ray crystallography. The core of these ...
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      Structure of 5,5-dimethyl-2-(4-nitrophenylaminomethylene)-1,3- cyclohexanedione  [Article]

      Diánez Millán, María Jesús; Pérez Garrido, Simeón; López Castro, Amparo (International Union of Crystallography, 1991)
      CIsHI6N204, triclinic, P1, a = 12.719 (3), b= 7.485 (2), c= 7.728 (2) A, a =93"18 (2), fl = 100-40 (2), 3' = 99-24 (2) °, V = 711-5 (3) •3, Z = 2, Dm = 1.35, Dx = 1.34 Mg m -3, A(Mo Ka) = 0.7107/~, /.+ = 0"092 mm-~, ...
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      Study of a diastereoisomeric dihydrothiophene derivative at 150 K  [Article]

      Diánez Millán, María Jesús; Estrada de Oya, María Dolores; López Castro, Amparo; Pérez Garrido, Simeón (International Union of Crystallography, 1999)