ListarQICM - Artículos por tema "X-ray diffraction"
Mostrando ítems 1-16 de 16
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2D Corrugated Magnesium Carboxyphosphonate Materials: Topotactic Transformations and Interlayer “Decoration” with Ammonia
Demadis, Konstantinos D.; Famelis, Nikos; Cabeza-Díaz, Aurelio
; García-Aranda, Miguel Ángel; Pérez-Colodrero, Rosario Mercedes; Infantes-Molina, Antonia[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-García, Ana María; Ichikawa, Rodrigo U.; Londono-Zuluaga, Diana; Gómez-de-la-Torre, María de los Ángeles; Santacruz-Cruz, María Isabel; Turrillas, Xavier; García-Aranda, Miguel Ángel[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 Mercedes; Cabeza-Díaz, Aurelio; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Barouda, Eleni; Demadis, Konstantinos D.; García-Aranda, Miguel Ángel[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 ... -
Common Structural Features in Calcium Hydroxyphosphonoacetates. A High-Throughput Screening
Pérez-Colodrero, Rosario Mercedes; Cabeza-Díaz, Aurelio; Olivera-Pastor, Pascual; Papadaki, M.; Rius, Jordi; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Demadis, Konstantinos D.; García-Aranda, Miguel Ángel[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 Mercedes; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Cabeza-Díaz, Aurelio; García-Aranda, Miguel Ángel; Demadis, Konstantinos D.[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 Mercedes; Cabeza-Díaz, Aurelio; Olivera-Pastor, Pascual; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Turner, Adele; Ilia, Gheorghe; Maranescu, Bianca; Papathanasiou, Konstantinos E.; Hix, Gary B.; Demadis, Konstantinos D.; García-Aranda, Miguel Ángel[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 Mercedes; Papadaki, M.; Garczarek, Piotr; Zon, Jerzy; Olivera-Pastor, Pascual; Losilla, Enrique R.; León-Reina, Laura; García-Aranda, Miguel Ángel; Choquesillo-Lazarte, Duane; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[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 Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Hernández Alonso, Daniel; García-Aranda, Miguel Ángel; León-Reina, Laura; Rius, Jordi; Demadis, Konstantinos D.; Moreau, Bernard; Villemin, Didier; Palomino, Miguel; Rey, Fernando; Cabeza-Díaz, Aurelio[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-García, Ana María; García-Maté, Marta; Santacruz-Cruz, María Isabel; Ramírez-Losilla, Enrique; Sanfélix, Susana G.; Fauth, François[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 Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; García-Aranda, Miguel Ángel; León-Reina, Laura; Papadaki, M.; McKinlay, Alistair C.; Morris, Russell E.; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[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 Mercedes; Papathanasiou, Konstantinos E.; Stavgianoudaki, Nikoleta; Olivera-Pastor, Pascual; Losilla, Enrique R.; García-Aranda, Miguel Ángel; León-Reina, Laura; Sanz, Jesús; Sobrados, Isabel; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Atienzar, Pedro; Rey, Fernando; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[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.; Gómez-de-la-Torre, María de los Ángeles; García-Aranda, Miguel Ángel; Santacruz-Cruz, María 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 Mercedes; Olivera-Pastor, Pascual; Cabeza-Díaz, Aurelio; Papadaki, M.; Demadis, Konstantinos D.; García-Aranda, Miguel Ángel[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 Mercedes; Angeli, Giasemi K.; Bazaga-García, Montse; Olivera-Pastor, Pascual; Villemin, Didier; Losilla, Enrique R.; Martos, Estefanía Q.; Hix, Gary B.; García-Aranda, Miguel Ángel; Demadis, Konstantinos D.; Cabeza-Díaz, Aurelio[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 Mercedes; 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 Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Nieto-Ortega, Belén; García-Aranda, Miguel Ángel; Choquesillo-Lazarte, Duane; Cabeza-Díaz, Aurelio; Demadis, Konstantinos D.[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 ...