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    Listar por tema "X-ray diffraction"

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      • 2D Corrugated Magnesium Carboxyphosphonate Materials: Topotactic Transformations and Interlayer “Decoration” with Ammonia 

        Demadis, Konstantinos D.; Famelis, Nikos; Cabeza-Diaz, Aurelio; G. Aranda, Miguel Ángel; Pérez Colodrero, Rosario M.; [et al.] (American Chemical Society, 2012-06-29)
        In this paper we report the synthesis and structural characterization of the 2D layered coordination polymer Mg(BPMGLY)(H2O)2 (BPMGLY = bis-phosphonomethylglycine, (HO3PCH2)2N(H)COO2−). The Mg ion is found in a slightly ...
      • Aluminum Hydroxide Gel Characterization within a Calcium Aluminate Cement Paste by Combined Pair Distribution Function and Rietveld Analyses 

        Cuesta-Garcia, Ana Maria; Ichikawa, Rodrigo U.; Londono-Zuluaga, Diana; Gomez-de-la-Torre, Maria de los Angeles; Santacruz-Cruz, Maria Isabel; [et al.] (Elsevier, 2017-06)
        There are many commercially important multiphase materials which contain amorphous phases, such as cement pastes, porcelains, glass-ceramics or pharmaceutical compounds. However, the analysis of amorphous phase(s) within ...
      • “Breathing” in Adsorbate-Responsive Metal Tetraphosphonate Hybrid Materials 

        Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Barouda, Eleni; [et al.] (Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim, 2009-05-28)
        The structures of various layered calcium tetraphosphonates (CaH6DTMP; H8DTMP=hexamethyl- tetrakis(methylenephosphonic acid)), have been determined. Starting from CaH6DTMP·2H2O, thermal treatment and subsequent exposure ...
      • Clinkering, processing and characterisation of Alite-Belite-Ye’elimite eco-cements: from basic to applied science 

        Zea-Garcia, Jesus D. (UMA Editorial, 2020-09-11)
        An eco-friendly industrial production is essential to protect our environment. The synthesis process of PC generates greenhouse gas emissions. Because of that, the cement industry is under increasing scrutiny to reduce CO2 ...
      • Common Structural Features in Calcium Hydroxyphosphonoacetates. A High-Throughput Screening 

        Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Papadaki, M.; Rius, Jordi; [et al.] (2011-03-11)
        R,S-Hydroxyphosphonoacetic acid (H3HPA) is an inexpensive multidentate organic ligand widely used for the preparation of organo-inorganic hybrid materials. There are reports of several crystal structures and the variability ...
      • Crystal engineering in confined spaces. A novel method to grow crystalline metal phosphonates in alginate gel systems 

        Stavgianoudaki, Nikoleta; Papathanasiou, Konstantinos E.; Pérez Colodrero, Rosario M.; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; [et al.] (The Royal Society of Chemistry, 2012)
        In this paper we report a crystal growth method for metal phosphonate frameworks in alginate gels. It consists of a metalcontaining alginate gel, in which a solution of phosphonate ligand is slowly diffused. Crystals of ...
      • Divalent Metal Vinylphosphonate Layered Materials: Compositional Variability, Structural Peculiarities, Dehydration Behavior, and Photoluminescent Properties 

        Pérez Colodrero, Rosario M.; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; [et al.] (American Chemical Society, 2011-09-27)
        A family of M-VP (M = Ni, Co, Cd, Mn, Zn, Fe, Cu, Pb; VP = vinylphosphonate) and M-PVP (M = Co, Cd; PVP = phenylvinylphosphonate) materials have been synthesized by hydrothermal methods and characterized by FTIR, elemental ...
      • Guest Molecule-Responsive Functional Calcium Phosphonate Frameworks for Tuned Proton Conductivity 

        Bazaga-García, Montse; Pérez Colodrero, Rosario M.; Papadaki, M.; Garczarek, Piotr; Zon, Jerzy; [et al.] (American Chemical Society, 2014-03-18)
        We report the synthesis, structural characterization, and functionality of an open-framework hybrid that combines Ca2+ ions and the rigid polyfunctional ligand 5-(dihydroxyphosphoryl) isophthalic acid (PiPhtA). Ca-PiPhtA-I ...
      • High Proton Conductivity in a Flexible, Cross-Linked, Ultramicroporous Magnesium Tetraphosphonate Hybrid Framework 

        Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Hernández Alonso, Daniel; G. Aranda, Miguel Ángel; [et al.] (American Chemical Society, 2012-07-03)
        Multifunctional materials, especially those combining two or more properties of interest, are attracting immense attention due to their potential applications. MOFs, metal organic frameworks, can be regarded as multifunctional ...
      • In-situ early-age hydration study of sulfobelite cements by synchrotron powder diffraction 

        Álvarez-Pinazo, Gema; Cuesta-Garcia, Ana Maria; García-Maté, Marta; Santacruz-Cruz, Maria Isabel; Ramirez-Losilla, Enrique; [et al.] (Karen Scrivener, 2014)
        Eco-friendly belite calcium sulfoaluminate (BCSA) cement hydration behavior is not yet well understood. Here,we report an in-situ synchrotron X-ray powder diffraction study for the first hours of hydration of BCSA ...
      • Multifunctional lanthanum tetraphosphonates: Flexible, ultramicroporous and proton-conducting hybrid frameworks 

        Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; G. Aranda, Miguel Ángel; León-Reina, Laura; [et al.] (The Royal Society of Chemistry, 2012)
        A new flexible ultramicroporous solid, La(H5DTMP)·7H2O (1), has been crystallized at room temperature using the tetraphosphonic acid H8DTMP, hexamethylenediamine-N,N,N′,N′-tetrakis(methylenephosphonic acid). Its crystal ...
      • Multifunctional Luminescent and Proton-Conducting Lanthanide Carboxyphosphonate Open-Framework Hybrids Exhibiting Crystalline-to-Amorphous-to-Crystalline Transformations 

        Pérez Colodrero, Rosario M.; Papathanasiou, Konstantinos E.; Stavgianoudaki, Nikoleta; Olivera-Pastor, Pascual; Losilla, Enrique R.; [et al.] (American Chemical Society, 2012-09-15)
        The chemistry of metal phosphonates has been progressing fast with the addition of new materials that possess novel structural features and new properties, occasionally in a cooperative manner. In this paper, we report a ...
      • Processing and characterisation of standard and doped alite-belite-ye'elimite ecocement pastes and mortars 

        Zea-Garcia, Jesus D.; Gomez-de-la-Torre, Maria de los Angeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, Maria Isabel (2020-02-26)
        Here, we report the processing optimisation of two laboratory-prepared alite-belite-ye'elimite ecocements (standard and doped) that release to the atmosphere ~13% less CO2 than Portland Cement during fabrication. The ...
      • Structural Mapping and Framework Interconversions in 1D, 2D, and 3D Divalent Metal R,S-Hydroxyphosphonoacetate Hybrids 

        Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Papadaki, M.; Demadis, Konstantinos D.; [et al.] (American Chemical Society, 2009-12-16)
        Reactions of divalent cations (Mg2þ, Co2þ, Ni2þ, and Zn2þ) with R,S-hydroxyphosphonoacetic acid (HPAA) in aqueous solutions (pH values ranging 1.0-4.0) yielded a range of crystalline hydrated M-HPAA hybrids. Onedimensional ...
      • Structural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybrids 

        Pérez Colodrero, Rosario M.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Losilla, Enrique R.; Martos, E.Q.; [et al.] (2013)
        The two cornerstones in the field of MOFs are the Secondary Building Units (SBU’s or “bricks”) and the organic linkers. The structural tunability of crystalline MOFs coupled, when possible, with high chemical and thermal ...
      • Structural Variability in Multifunctional Metal Xylenediaminetetraphosphonate Hybrids 

        Pérez Colodrero, Rosario M.; Angeli, Giasemi K.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Villemin, Didier; [et al.] (American Chemical Society, 2013-07-24)
        Two new families of divalent metal hybrid derivatives from the aromatic tetraphosphonic acids 1,4- and 1,3-bis(aminomethyl)benzene-N,N′-bis(methylenephosphonic acid), (H2O3PCH2)2−N−CH2C6H4CH2−N(CH2PO3H2)2 (designated herein ...
      • Synthesis and structural characterization of homochiral 2D coordination polymers of zinc and copper with conformationally flexible ditopic imidazolium-based dicarboxylate ligands 

        Nicasio, Antonio I.; Montilla, Francisco; Álvarez, Eleuterio; Pérez Colodrero, Rosario M.; Galindo, Agustín (The Royal Society of Chemistry, 2016-11-30)
        Different novel coordination polymers containing zinc, 1–4, and copper, 5–8, metals, connected via chiral imidazolium-based dicarboxylate ligands, [LR]−, were isolated by reaction between zinc acetate or copper acetate ...
      • Tuning Proton Conductivity in Alkali Metal Phosphonocarboxylates by Cation Size-Induced and Water-Facilitated Proton Transfer Pathways 

        Bazaga-García, Montse; Papadaki, M.; Pérez Colodrero, Rosario M.; Olivera-Pastor, Pascual; Losilla, Enrique R.; [et al.] (American Chemical Society, 2014-12-20)
        The structural and functional chemistry of a family of alkali-metal ions with racemic R,S-hydroxyphosphonoacetate (M-HPAA; M = Li, Na, K, Cs) are reported. Crystal structures were determined by X-ray data (Li+, powder ...
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
         

         

        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA
        REPOSITORIO INSTITUCIONAL UNIVERSIDAD DE MÁLAGA