Listar por autor "Demadis, Konstantinos D."
Mostrando ítems 1-20 de 36
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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; Perez-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 ... -
“Breathing” in Adsorbate-Responsive Metal Tetraphosphonate Hybrid Materials
Perez-Colodrero, Rosario Mercedes; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Barouda, Eleni; Demadis, Konstantinos D.; G. 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
Perez-Colodrero, Rosario Mercedes; Cabeza-Diaz, Aurelio; Olivera-Pastor, Pascual; Papadaki, M.; Rius, Jordi; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Demadis, Konstantinos D.; G. 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.; Perez-Colodrero, Rosario Mercedes; Choquesillo-Lazarte, Duane; García-Ruíz, Juan M.; Cabeza-Diaz, Aurelio; G. 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
Perez-Colodrero, Rosario Mercedes; Cabeza-Diaz, 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.; G. 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 ... -
Drug Delivery Systems based on hydrogels
(2017-09-28)Gel systems have found extensive applications in the medicinal/pharmaceutical field because of their ease of preparation, ability for modifications, and responsiveness to external chemical or physical stimuli. Gels usually ... -
Exploiting the Multifunctionality of M2+/Imidazole−Etidronates for Proton Conductivity (Zn2+) and Electrocatalysis (Co2+, Ni2+) toward the HER, OER, and ORR
Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, Maria; Visa, Aurelia; Bazaga-García, Montse; Olivera-Pastor, Pascual; Choquesillo-Lazarte, Duane; Marrero-López, David; Cabeza-Diaz, Aurelio; P. Colodrero, Rosario M.; Demadis, Konstantinos D.[et al.] (American Chemical Society, 2022-02-22)
This work deals with the synthesis and characterization of one-dimensional (1D) imidazole-containing etidronates, [M2(ETID)(Im)3]·nH2O (M = Co2+ and Ni2+; n = 0, 1, 3) and Zn2(ETID)2(H2O)2](Im)2, as well as the corresponding ... -
From light to heavy alkali metal tetraphosphonates (M = Li, Na, K, Rb, Cs): cation size-induced structural diversity and waterfacilitated proton conductivity
Salcedo, Inés R.; Perez-Colodrero, Rosario Mercedes; Bazaga-García, Montse; Vasileiou, Antonia; Papadaki, Maria; Olivera-Pastor, Pascual; Infantes-Molina, Antonia; Ramirez-Losilla, Enrique; Mezei, Gellert; Cabeza-Diaz, Aurelio; Demadis, Konstantinos D.[et al.] (The Royal Society of Chemistry, 2018-09)
A family of alkali metal-based frameworks containing the tetraphosphonate ligand hexamethylenediamine- N,N,N′,N′-tetrakisIJmethylenephosphonic acid), HDTMP, is reported. A cation size-induced structural diversity, from ... -
Gels: formation, structure and utilization in crystal growth
(2015-09-29)Gels are ubiquitous in Nature and everyday life. This presentation will focus on the utilization of gels in the art of crystal growing. Several scientific disciplines depend on formation and characterization of crystals. ... -
Guest Molecule-Responsive Functional Calcium Phosphonate Frameworks for Tuned Proton Conductivity
Bazaga-García, Montse; Perez-Colodrero, Rosario Mercedes; Papadaki, M.; Garczarek, Piotr; Zon, Jerzy; Olivera-Pastor, Pascual; Losilla, Enrique R.; León-Reina, Laura; G. Aranda, Miguel Ángel; Choquesillo-Lazarte, Duane; Demadis, Konstantinos D.; Cabeza-Diaz, 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
Perez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; Hernández Alonso, Daniel; G. Aranda, Miguel Ángel; León-Reina, Laura; Rius, Jordi; Demadis, Konstantinos D.; Moreau, Bernard; Villemin, Didier; Palomino, Miguel; Rey, Fernando; Cabeza-Diaz, 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 ... -
High-Throughput Synthesis of Pillared-Layered Magnesium Tetraphosphonate Coordination Polymers: Framework Interconversions and Proton Conductivity Studies
Perez-Colodrero, Rosario Mercedes; Salcedo, Inés R.; Bazaga-García, Montse; Barouda, Eleni; Papadaki, Maria; Papathanasiou, Konstantinos E.; Hernández Alonso, Daniel; Rius, Jordi; García-Aranda, Miguel Ángel; Ramirez-Losilla, Enrique; Olivera-Pastor, Pascual; Demadis, Konstantinos D.; Cabeza-Diaz, Aurelio[et al.] (MDPI, www.mdpi.com/journal/inorganics, 2018-09-11)
Novel pillared-layered framework materials were synthesized by high-throughput or microwave-assisted methodology that contain Mg2+ and the zwitterionic linker HDTMP (hexamethylenediamine-N,N,N0,N0-tetrakis(methylenephosphonic ... -
Imidazole-containing Co2+ and Ni2+ etidronates: crystal structures and electrochemical behaviour
Bazaga-García, Montse; Perez-Colodrero, Rosario Mercedes; Vílchez-Cózar, Álvaro; Armakola, Eirini; Gjika, M.; Visa, Aurelia; Choquesillo-Lazarte, Duane; Olivera-Pastor, Pascual; Cabeza-Diaz, Aurelio; Demadis, Konstantinos D.[et al.] (2021)
Metal phosphonates-based coordination polymers (CPs) are known to exhibit versatile structural diversity and functionality. Thus, they have been used, among other applications, as electrocatalyst precursors for both, PEMFCs ... -
Inorganic materials in industrial processes
(2015-09-29)Although inorganic materials represent a small number to the extreme number of the organic ones, they play a number of crucial roles in several processes of industrial interest. Two significant technologically processes ... -
Layered Lanthanide Sulfophosphonates and Their Proton Conduction Properties in Membrane Electrode Assemblies
Bazaga-García, Montse; Salcedo, Inés R.; Perez-Colodrero, Rosario Mercedes; Xanthopoulos, Konstantinos; Villemin, Didier; Stock, Norbert; López-González, Mar; del Río, Carmen; Ramirez-Losilla, Enrique; Cabeza-Diaz, Aurelio; Demadis, Konstantinos D.; Olivera-Pastor, Pascual[et al.] (ACS publications, 2019-11-07)
Metal phosphonates containing acidic groups exhibit a wide range of proton conduction properties, which may enhance the performance of membrane electrode assemblies (MEAs). In this work, focus is placed on proton conduction ... -
Luminescent and Proton Conducting Lanthanide Coordination Networks Based On a Zwitterionic Tripodal Triphosphonate
Bazaga-García, Montse; Angeli, Giasemi K.; Papathanasiou, Konstantinos E.; Salcedo, Inés R.; Olivera-Pastor, Pascual; Losilla, Enrique R.; Choquesillo-Lazarte, Duane; Hix, Gary B.; Cabeza-Diaz, Aurelio; Demadis, Konstantinos D.[et al.] (American Chemical Society, 2016-07-14)
The synthesis, structural characterization, luminescence properties, and proton conduction performance of a new family of isostructural cationic 2D layered compounds are reported. These have the general formula ... -
Metal Phosphonate MOFs: Attractive properties for exploitation
(2017-09-28)The field of phosphonate-based MOFs has known a significant renaissance during the last decade. Apart from academic curiosity, such materials are sought for their superior properties, stability (towards high Ts and hydrolysis) ... -
Multifunctional lanthanum tetraphosphonates: Flexible, ultramicroporous and proton-conducting hybrid frameworks
Perez-Colodrero, Rosario Mercedes; Olivera-Pastor, Pascual; Losilla, Enrique R.; G. Aranda, Miguel Ángel; León-Reina, Laura; Papadaki, M.; McKinlay, Alistair C.; Morris, Russell E.; Demadis, Konstantinos D.; Cabeza-Diaz, 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
Perez-Colodrero, Rosario Mercedes; Papathanasiou, Konstantinos E.; Stavgianoudaki, Nikoleta; Olivera-Pastor, Pascual; Losilla, Enrique R.; G. 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-Diaz, 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 ... -
New directions in metal phosphonate and fhosphinate chemistry
Shearan, Stephen J.I.; Stock, Norbert; Emmerling, Franziska; Demel, Jan; Wright, Paul A.; Demadis, Konstantinos D.; Vassaki, Maria; Costantino, Ferdinando; Vivani, Riccardo; Sallard, Sébastien; Salcedo, Inés R.; Cabeza-Diaz, Aurelio; Taddei, Marco[et al.] (MDPI www.mdpi.com/journal/crystals, 2019-05-24)
In September 2018, the First EuropeanWorkshop on Metal Phosphonates Chemistry brought together some prominent researchers in the field of metal phosphonates and phosphinates with the aim of discussing past and current ...