18 research outputs found

    España sagrada, continuada por la Real Academia de la Historia : tomo L, tratados LXXXVII y LXXXVIII, las santas iglesias de Tarazona y Tudela en sus estados antiguo y moderno /

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    "Apendices", p. 365-511, en latín y parte en castellano3 ej. de la misma obraTexto a dos col.Antep.Port. con viñeta.La h. de lam. es la lápida sepulcral de San Millán en el Monasterio de la CogollaBHR/B-049-281.PastaPerg.15018FDH 2119B-038-118Hª Derecho/N-4017 (50

    España sagrada, continuada por la Real Academia de la Historia : tomo XLIX, tratado LXXXVII, la Santa iglesia de Tarazona en sus estados antiguo y moderno /

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    "Apendices" p. 315-5083 ej. de la misma obraDe p. 315 a 508, texto en latínTexto a dos col.Antep.Port. con grab. xil.La h. de lám. pleg. mapa del obispado de TarazonaBHR/B-049-280.PastaPerg.15018FDH 2119B-038-117Hª Derecho/N-4017 (49

    España sagrada, continuada por la Real Academia de la Historia : tomo LI, tratado LXXXIX, de los obispos españoles titulares de iglesias in partibus infidelium o auxiliares en las de España /

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    2 ej. de la misma obra"Apéndices", p. 343-365De la provincia antigua de GaliciaTexto a dos col.Antep.Port. con viñeta xil.La h. de lam. "lit. de M. Fernandez de la Torre Madrid", retrato de Carlos Ramon FortBHR/B-049-282.Perg.FDH 2119Hª Derecho/N-4017 (51

    Thermodynamics of Mixtures Containing Oxaalkanes. 7. Random Mixing in Ether + CCl<sub>4</sub> Systems

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    Mixtures of a linear or cyclic ether + CCl<sub>4</sub> have been studied using the Flory model and the Kirkwood–Buff integrals formalism. The relative variation of the molar excess enthalpy, <i>H</i><sub>m</sub><sup>E</sup>, along the homologous series of the investigated systems was investigated in terms of the contributions to <i>H</i><sub>m</sub><sup>E</sup> from the breaking of the ether–ether and CCl<sub>4</sub>–CCl<sub>4</sub> interactions upon mixing and the formation of ether–CCl<sub>4</sub> interactions. For CH<sub>3</sub>(CH<sub>2</sub>)<sub><i>u</i>−1</sub>O­(CH<sub>2</sub>CH<sub>2</sub>O)<sub><i>v</i></sub>(CH<sub>2</sub>)<sub><i>u</i>−1</sub>CH<sub>3</sub> + CCl<sub>4</sub> mixtures, an increase in <i>u</i> (<i><i>v</i> = </i> 0) leads to a weakening of interactions between unlike molecules. In contrast, an increase in <i>v</i> (<i>u</i> fixed) or cyclization leads to stronger interactions between unlike molecules. For acetal mixtures, proximity effects weaken this type of interaction. From the application of the two models, it is shown that the structure of the mixtures is close to that of random mixing. Erroneously, strong orientational effects are predicted by the Flory model for 1,3-dioxolane or 1,3-dioxane + CCl<sub>4</sub> systems, but this is because the theory cannot describe asymmetric <i>H</i><sub>m</sub><sup>E</sup> curves when the mixture compounds have similar values for <i>V</i><sub><i>i</i></sub> (molar volume) and for <i>V</i><sub><i>i</i></sub><sup>*</sup> (reduction parameter for volume). The Flory results on the excess molar volumes are discussed in terms of the interactional, curvature, and <i>P</i>* contributions to this excess function
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