Exploració per autor "Céolin, René"

Ara es mostren els items 28-36 de 36

    • The phase diagram of the API benzocaine and its highly persistent, metastable crystalline polymorphs 

      Rietveld, Ivo B.; Akiba, Hiroshi; Yamamuro, Osamu; Barrio Casado, María del; Céolin, René; Tamarit Mur, José Luis (Multidisciplinary Digital Publishing Institute (MDPI), 2023-05-20)
      Article
      Accés obert
      The availability of sufficient amounts of form I of benzocaine has led to the investigation of its phase relationships with the other two existing forms, II and III, using adiabatic calorimetry, powder X-ray diffraction, ...

    • The Pressure-temperature phase diagram of metacetamol and its comparison to the phase diagram of paracetamol 

      Barrio Casado, María del; Huguet, Judit; Rietveld, Ivo B.; Robert, Benoit; Céolin, René; Tamarit Mur, José Luis (2017-06-01)
      Article
      Accés obert
      Understanding the polymorphic behavior of active pharmaceutical ingredients is important for formulation purposes and regulatory reasons. Metacetamol is an isomer of paracetamol and it similarly exhibits polymorphism. In ...

    • The relationship between orientational disorder and pressure: The case study of succinonitrile 

      Tamarit Mur, José Luis; Rietveld, Ivo B.; Barrio Casado, María del; Céolin, René (2014-12-25)
      Article
      Accés restringit per política de l'editorial
      Plastic phases can be considered as an intermediary state between the crystalline state and the liquid state, in which the molecules maintain their positions, but they exhibit orientational disorder. Whereas plastic phases ...

    • The solid state of anti-inflammatory morniflumate diniflumate: A cocrystalline salt 

      Barrio Casado, María del; Céolin, René; Robert, Benoit; Allouchi, Hassan; Teulon, Jean-Marie; Guéchot, Christophe; Tamarit Mur, José Luis; Rietveld, Ivo B. (2021-12-15)
      Article
      Accés obert
      Morniflumate diniflumate, a molecular compound involving niflumic acid and its ß-morpholino ethyl ester (morniflumate) in the mole ratio 2:1, is found to crystallize in a triclinic P - 1 space group with a unit-cell volume ...

    • Thermal expansion of L-ascorbic acid 

      Nicolaï, Béatrice; Barrio Casado, María del; Tamarit Mur, José Luis; Céolin, René; Rietveld, Ivo B. (2017-04-01)
      Article
      Accés obert
      The specific volume of vitamin C has been investigated by X-ray powder diffraction as a function of temperature from 110¿K up to complete degradation around 440¿K. Its thermal expansion is relatively small in comparison ...

    • Topological and experimental approach to the pressure-temperature-composition phase diagram of the binary enantiomer system d- and I-camphor 

      Rietveld, Ivo B.; Barrio Casado, María del; Espeau, Philippe; Tamarit Mur, José Luis; Céolin, René (2011-01-31)
      Article
      Accés restringit per política de l'editorial
      In 1981, Jacques, Collet, and Wilen already put forward the idea to use pressure to influence equilibria in binary enantiomer systems in analogy with temperature (Jacques et al. Enantiomers, Racemates and Resolutions; John ...

    • Uniaxial negative thermal expansion in crystals of tienoxolol 

      Nicolaï, Beatrice; Rietveld, Ivo B.; Barrio Casado, María del; Mahé, Nathalie; Tamarit Mur, José Luis; Céolin, René; Guéchot, Christophe; Teulon, Jean-Marie (2012-06-17)
      Article
      Accés restringit per política de l'editorial
      The thermal expansion of tienoxolol has been investigated by X-ray powder diffraction up to its melting temperature. The data indicate that the expansion is anisotropic and even negative in one direction of the unit cell. ...

    • Uniaxial negative thermal expansion in polymorphic 2-bromobenzophenone, due to aromatic interactions? 

      Romanini, Michela; Rietveld, Ivo B.; Barrio Casado, María del; Negrier, Philippe; Mondieig, Denise; Macovez, Roberto; Céolin, René; Tamarit Mur, José Luis (American Chemical Society, 2021-04-07)
      Article
      Accés obert
      The structure of the metastable form II of 2-bromobenzophenone, obtained by crystallization from the melt, has been determined by powder X-ray diffraction. Form II has been solved in the centrosymmetric monoclinic space ...

    • Van-der-Waals based solvates of C-60 with CBr2Cl2 and CBr2(CH3)(2) 

      Ye, Jin; Barrio Casado, María del; Céolin, René; Qureshi, Navid; Rietveld, Ivo B.; Tamarit Mur, José Luis (2016-09-30)
      Article
      Accés obert
      We demonstrate that solvates of fullerene C60 form very predictable structures with finely tunable properties through the choice of the second component or solvent. Cubic co-crystals of C60·12CCl2Br2 and C60·12CBr2(CH3)2 ...