Exploració per autor "Barrio Casado, María del"
Ara es mostren els items 21-40 de 107
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Crystal structures and phase relationships of 2 polymorphs of 1,4-Diazabicyclo[3.2.2]nonane-4-Carboxylic Acid 4-Bromophenyl Ester Fumarate, A selective a-7 nicotinic receptor partial agonist
(2016-01)
Article
Accés obertTwo polymorphs of the 1:1 fumarate salt of 1,4-diazabicyclo[3.2.2]nonane-4-carboxylic acid 4-bromophenyl ester, developed for the treatment of cognitive symptoms of schizophrenia and Alzheimer disease, have been characterized. ... -
Crystalline tetrazepam as a case study on the volume change on melting of molecular organic compounds
(2021-01-25)
Article
Accés obertThe volume change on melting is a rarely studied quantity and it is not well understood even if it must reflect the changes in interaction between the solid and the liquid state. It is part of the solid-state information ... -
Curs 0: preparació per als estudis a l’EEBE
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022-05)
Article
Accés obertAquest article presenta el desenvolupament i primers resultats d'ús d'un conjunt de cursos virtuals que pretenen proporcionar uns coneixements inicials bàsics de Matemàtiques, Física i !ímica als estudiants que accedeixen ... -
Disentangling the secondary relaxations in the orientationally disordered mixed crystals: cycloheptanol + cyclooctanol two-component system
(2010-04-20)
Article
Accés restringit per política de l'editorialThe dynamics of the pure compounds and mixed crystals formed between cycloheptanol (cC7-ol) and cyclooctanol (cC8-ol) has been studied by means of broadband dielectric spectroscopy at temperatures near and above the ... -
Does the trihydrate of atorvastatin calcium possess a melting point?
(2020-05-30)
Article
Accés obertTo decide whether an active pharmaceutical ingredient can be used in its amorphous form in drug formulations, often the glass transition is studied in relation to the melting point of the pharmaceutical. If the glass ... -
Double primary relaxation in a highly anisotropic orientational glass-former with low-dimensional disorder
(2016-04-26)
Article
Accés obertThe freezing of the cooperative reorientational motions in orientationally disordered (OD) molecular crystals marks the so-called \glassy" transition, which may be considered a lower-dimensional version of the structural ... -
Dynamics of orientationally disordered mixed crystal sharing Cl-adamantane and CN-adamantane
(2010-01-27)
Article
Accés restringit per política de l'editorialOrientationally disordered (OD) mixed crystals formed between cyanoadamantane (CN-A) and chloroadamantane (Cl-A) have been thermodynamically characterized by means of thermal analysis and X-ray diffraction. The dynamics ... -
Emergence of glassy-like dynamics in an orientationally ordered phase
(2012-04-04)
Article
Accés obertThe dynamics of a simple rigid pseudoglobular molecule (2-adamantanone) has been studied by means of dielectric spectroscopy and examined under the constraints imposed by the space group of the crystal structure determined ... -
Enantiomer resolution by pressure increase: inferences from experimental and topological results for the binary enantiomer system (R)- and (S)-mandelic acid
(2011-11-02)
Article
Accés restringit per política de l'editorialIn pharmacy, racemic compounds are often problematic, because generally only one of the enantiomers possesses therapeutic activity and it is often difficult to separate them. Even though this problem is likely as old ... -
Experimental and topological determination of the pressure-temperature phase diagram of morniflumate, a pharmaceutical ingredient with anti-inflammatory properties
(2017-09-01)
Article
Accés obertThe pressure-temperature phase diagram of morniflumate (niflumic acid ß-morpholinoethyl ester) has been obtained by high-pressure thermal analysis. In addition, calorimetric melting data (TI¿L = (348.1 ± 0.4) K and ¿HI¿L ... -
Experimental and topological determination of the pressure-temperature phase diagram of racemic etifoxine, a pharmaceutical ingredient with anxiolytic properties
(2019-12-18)
Article
Accés obertInformation about the solid-state properties of etifoxine has been lacking, even if the active pharmaceutical ingredient has been used for its anxiolytic properties for decennia. The crystal structure of the racemic compound ... -
From figh-temperature orientationally disordered mixed crystals to low-temperature complex formation in the two-component system (CH3)3CBr + Cl3CBr
(2011-02-02)
Article
Accés restringit per política de l'editorialThe phase diagram of the two-component systems (CH(3))(3)CBr + Cl(3)CBr has been experimentally determined by means of differential scanning calorimetry and X-ray powder diffraction techniques from the low-temperature ... -
Giant and reversible barocaloric effect in trinuclear spin-crossover complex Fe3(bntrz)6(tcnset)6
(2021-03)
Article
Accés obertA giant barocaloric effect (BCE) in a molecular material Fe3(bntrz)6(tcnset)6 (FBT) is reported, where bntrz = 4-(benzyl)-1,2,4-triazole and tcnset = 1,1,3,3-tetracyano-2-thioethylepropenide. The crystal structure of FBT ... -
Giant and reversible inverse barocaloric effects near room temperature in ferromagnetic MnCoGeB0.03
(2019-09-13)
Article
Accés obertHydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first-order magnetostructural phase transitions whose large latent heats are ... -
Giant barocaloric effect in all-d-metal Heusler shape memory alloys
(American Physical Society (APS), 2019-04-16)
Article
Accés obertWe have studied the barocaloric properties associated with the martensitic transition of a shape memory Heulser alloy Ni50Mn31.5Ti18.5 which is composed of all-d-metal elements. The composition of the sample has been ... -
Giant barocaloric effects at low pressure in ferrielectric ammonium sulphate
(2015-11-01)
Article
Accés obertCaloric effects are currently under intense study due to the prospect of environment-friendly cooling applications. Most of the research is centred on large magnetocaloric effects and large electrocaloric effects, but the ... -
Giant barocaloric effects over a wide temperature range in the superionic conductor AgI
(2017-11-29)
Article
Accés obertCurrent interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order. ... -
Giant reversible barocaloric response of (MnNiSi)(1-x)(FeCoGe)(x) (x=0.39, 0.40, 0.41)
(American Institute of Physics (AIP), 2019-06-01)
Article
Accés obertMnNiSi-based alloys and isostructural systems have traditionally demonstrated impressive magnetocaloric properties near room temperature associated with a highly tunable first-order magnetostructural transition that involves ... -
Giant solid-state barocaloric effect in the Ni-Mn-In magnetic shape-memory alloy
(2010-06-01)
Article
Accés obertSolid-state materials showing giant caloric effects near room temperature could provide an alternative to cooling devices based on gas cycles. Strong emphasis has so far been dedicated to caloric effects induced by a ... -
Improving barocaloric properties by tailoring transition hysteresis in Mn3Cu$_{1-x}$Sn$_{x}$N antiperovskites
(Institute of Physics (IOP), 2023-04-01)
Article
Accés obertThe magnetically frustrated manganese nitride antiperovskite family displays significant changes of entropy under changes in hydrostatic pressure near a first-order antiferromagnetic to paramagnetic phase transition that ...
