Begoña Bazan

Begoña Bazan
University of the Basque Country | UPV/EHU · Mineralogy and Petrology

About

79
Publications
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September 1997 - present
University of the Basque Country
Position
  • Investigador Doctor Permanente

Publications

Publications (79)
Article
Ferromagnetic [Ni 5 (H 2 TCPP) 2 O(H 2 O) 4 ]· n S exhibits selective adsorption towards cationic dyes in solution and gas separation calculations predict promising values for gas mixtures.
Article
Metal-Organic Frameworks (MOFs) are porous coordination networks assembled through metal complexes with organic linkers. Due to their chemical versatility, these materials are being investigated for various applications including gas storage and separation, biomedicine and catalysis. The aim of this work is the encapsulation of the model β-alanine...
Article
Full-text available
Ionothermal synthesis is a little used method for the preparation of coordination polymers. By this method, two cadmium compounds were synthesized, 1, with formula Cd3(ox)F2(Ina)2 (Ina = isonicotinate) and 2, Cd(NO3)2(4,4′-Bpy) (4,4′-Bpy = 4,4′-Bipyridine). The modification of the reaction conditions has allowed to obtain 2 as a pure phase. The str...
Article
Full-text available
Heterogeneous catalysts are of great interest in many industrial processes for environmental reasons and, during recent years, a great effort has been devoted to obtain metal–organic frameworks (MOFs) with improved catalytic behaviour. Few supramolecular metal–organic frameworks (SMOFs) are stable under ambient conditions and those with anchored ca...
Article
Heterogeneous catalysts are a great bet for green chemistry in many industrial processes and, in the past decade, promising results have been achieved in order to improve the catalytic activity of Metal Organic Frameworks (MOFs). Accordingly, porphyrins make possible to design new coordination polymers with better properties, taking into account th...
Article
In this paper, we have completed the synthesis and characterization of the family of aluminium-alkali metal -ate derivatives [MAlMe4-x{2,6-(MeO)2C6H3O}x]n (x = 1, 2; M = Li, Na, K) by preparing the new heterometallic -ate compounds [MAlMe3{2,6-(MeO)2C6H3O}]2 (M = Na and K) through the reaction between [AlMe3]2 and the appropriate alkali metal arylo...
Article
Metalloporphyrins exhibit outstanding chemical, physical and biological properties in dissolution, however, it is a challenge to synthesize them as stable solid frameworks. Long-time stability is crucial for future applications of these materials, and we have detected a slow, solid-state transformation of a 2D MnII-porphyrin at RT. The remarkable p...
Article
Metal organic frameworks (MOFs) are crystalline materials based on connections between metal ions through organic ligands. The combination of polycarboxylate anions and dipyridyl ligands is an effective strategy for producing extended structures. In this sense, the combination of bpa with m-bdc [bpa = 1,2-bis(4-pyridyl)ethane, m-bdc = 1,3-benzenedi...
Article
CuII-nanoballs have been determined to be among the best MOPs (Metal-Organic Polyhedra) reported so far for the adsorption of small molecules, with the highlighting advantage of the rapid kinetics, which focuses applicability to the removal of emergent pollutants.
Article
Full-text available
Phase transformations in solid coordination frameworks (SCFs) are of interest for several applications, and this work reports on a crystal-to-crystal transformation found for a hydrogen bonded CuII-based solid coordination frameworks (SCF). Thus, combination of PDC and (py)2C(OH)2 ligands, where PDC is pyridine-2,5-dicarboxylate and (py)2C(OH)2 is...
Article
Combination of polycarboxylate anions and dipyridyl ligands is an effective strategy to produce solid coordination frameworks (SCF) which are crystalline materials based on connections between metal ions through organic ligands. In this context, this work is focused on two novel CuII-based SCFs exhibiting PDC (2,5-pyridinedicarboxylate) and bpa (1,...
Article
Full-text available
Synthetic metalloporphyrin complexes are often used as analogues of natural systems, and they can be used for the preparation of new Solid Coordination Frameworks (SCFs). In this work, a series of six metalloporphyrinic compounds constructed from different meso substituted metalloporphyrins (phenyl, carboxyphenyl and sulfonatophenyl) have been stru...
Article
Full-text available
Compound 1 [Cu24(m-BDC)24(DMF)20(H2O)4]•24DMF•40H2O (m-BDC is 1,3-benzenedicarboxylate and DMF is N,N-dimethylformamide) has been synthesized and structurally characterized by X-ray diffraction. It consists of Cu24-clusters arranged in such a way that 12 dimers are connected through m-BDC ligands. The clusters exhibit an internal cavity where cryst...
Article
Full-text available
During the past years, a great effort has been devoted to the anchoring of catalysts into solid coordination networks in order to achieve heterogeneous catalysts. In this sense, an innovative approach consists on using the coordination-network synthons both as structural units and as catalysts. Regarding the latter, metalloporphyrins are suitable c...
Article
Full-text available
Solid coordination frameworks (SCF) are crystalline materials based on connections between metal ions through organic ligands. In this sense, combination of polycarboxylate anions and dipyridyl ligands is an effective strategy to produce extended structures. In this context, this work is focused on two novel CuII-based SCFs exhibiting PDC (2,5-pyri...
Conference Paper
Full-text available
Similar to the worldwide ISO, at the European level, Brussels-based CEN (the European Committee for Standardization) is the solely recognized organization for the planning drafting and adoption of European Standards in all major areas of business except electro-technology and telecommunications. Concretely, on July, 2013, was published the UNE-CEN/...
Conference Paper
Full-text available
Innovation, both as a field of study and as a practical discipline, has gained considerable traction over the past 15 years. In fact, as organizations become broader and more complex, the need for a systematic approach to new product, service or business development techniques strengthens accordingly. This idea (by Oana-Maria Pop, Senior Editor of...
Conference Paper
Full-text available
A value chain is a chain of activities that an organization performs in order to deliver a valuable product or service for the market. The concept comes from business management and was first described and popularized by Michael Porter in his 1985 bestseller , Competitive Advantage: Creating and Sustaining Superior Performance: "The idea of the val...
Article
Compound ([FeTPPbipy](•))n (TPP = meso-tetraphenylporphyrin and bipy = 4,4'-bipyridine) is the first example of a Fe-TPP-bipy coordination network, and it consists of 1D polymers packed through face-to-face and edge-to-face π-π interactions. The compound has been investigated by means of X-ray diffraction, IR, Mössbauer, UV-visible, and EPR spectro...
Article
Full-text available
The host-chemistry of four coordination networks has been studied by means of X-ray diffractometry (XRD), thermogravimetry (TG) and X-ray thermodiffractometry (TDX). The four compounds exhibit the general formula [Ni(PDC)((py)2C(OH)2)(ROH)]·xROH, where PDC is pyridine-2,5-dicarboxylate(2−), ((py)2C(OH)2) is the gem-diol of di-2-pyridyl ketone ((py)...
Article
Full-text available
Two new CoP–bipy compounds have been synthesised and characterised, where P is TPP for compound 1 (TPP = meso-tetraphenylporphyrin) and TPPS for compound 2 (TPPS = meso-tetraphenylporphine-tetrasulfonic acid tetrasodium salt), and bipy is 4,4′-bipyridine. Compound 1 consists of 1D polymers packed in a network where isolated porphyrin units are immo...
Conference Paper
Full-text available
The Academic Ranking of World Universities (ARWU) uses several objective indicators to rank world universities, including the number of alumni and staff winning Nobel Prizes and Fields Medals, number of highly cited researchers selected by Thomson Scientific, number of articles published in journals of Nature and Science, and number of articles ind...
Conference Paper
Full-text available
The establishment of three cycles for higher education in the Bologna Process is the key element of this overarching framework. These cycles can be best understood by reference to internationally acceptable descriptors which have been developed jointly by stakeholders across Europe – the socalled “Dublin descriptors”. Therefore, these third-cycle d...
Article
The title compound is hydrothermally synthesized from an aqueous mixture of Fe2(SO4)3, As2O5, LiOH, NH4OH, and HF (autoclave, pH 6, 170 °C, 5 d).
Article
Full-text available
The combination of non-centrosymmetric ligands and dipyridyl spacers produces a MOF that potentially can be porous with formula [Ni2(bipy)1.5(PDC)2(H2O)2]·3.5H2O (bipy = 4,4′-bipyridine and PDC = pyridine-2,5-dicarboxylate). Dehydration of this compound results in a new MOF in which the formation of additional bonds between the carboxylate groups o...
Article
The (NHâ){sub 0.80}Li{sub 0.20}[Fe(AsOâ)F] compound has been synthesized under mild hydrothermal conditions. The compound crystallize in the orthorhombic Pna2⁠space group, with cell parameters a=13.352(9), b=6.7049(9), c=10.943(2) A and Z=8. The compound belongs to the KTiO(POâ) structure type, with chains alternating FeOâFâ octahedra and AsOâ te...
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
Full-text available
Four 3D coordination polymers have been hydrothermally synthesized using PDC (PDC = pyridine-2,5-dicarboxylate), and subsequently characterised. The four compounds are heterobimetallic, their formula being [MNa2(PDC)2(H2O)4], with M = Ni, Co. Two polymorphous compounds having the formula [NiNa2(PDC)2(H2O)4] have been obtained: polymorph α is monocl...
Article
Full-text available
(C(6)N(2)H(16))(0.5)[(VO)(HAsO(4))F] 1 has been synthesized using mild hydrothermal conditions under autogenous pressure. Above 70 degrees C, this phase has a polymorph with the same chemical composition 2 in which the organic 1,4-diamincyclohexane molecule adopts a different conformation. The crystal structures have been solved from single-crystal...
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
Here we present a summary of the work carried out in the last few years on the synthesis and characterization of a new type of organically templated inorganic–organic solid based on the (HPO3)2− phosphite oxoanion, with special focus on the magnetostructural properties of those systems containing open d-shell transition metal ions. As a result of t...
Article
The (NH4)[Fe(AsO4)1−x(PO4)xF] (x=0.3, 0.6, 0.8) series of compounds has been synthesized under mild hydrothermal conditions. The compounds crystallize in the orthorhombic Pna21 space group, with the unit-cell parameters a=13.1718(1), b=6.5966(6), c=10.797(1)Å for x=0.3; a=13.081(1), b=6.5341(6), c=10.713(1)Å for x=0.6 and a=13.0329(9), b=6.4994(4),...
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
A new mixed valence vanadium(III,IV) fluoro-arsenate compound, with formula (NH4)[V1-xIIIVxIV(AsO4)F1-xOx] and KTP structure-type, has been synthesized by mild hydrothermal techniques. The crystal structure has been solved from single crystal X-ray diffraction data in the Pna21 orthorhombic space group. The unit-cell parameters are a=13.196(2)Å, b=...
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
(C(5)H(14)N(2))[(VO)(3)(AsO(4))(HAsO(4))(2)(OH)].3H(2)O behaves as a microporous organically templated compound, with reversible adsorption and desorption of N(2) at 77 K, and as an extremely efficient catalyst that catalyzes selective sulfoxide formation from organic sulfides, under mild conditions.
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
The (C3H12N2)0.94[Mn1.50Fe1.50III(AsO4)F6] and (C3H12N2)0.75[Co1.50Fe1.50III(AsO4)F6] compounds 1 and 2 have been synthesized using mild hydrothermal conditions. These phases are isostructural with (C3H12N2)0.75[Fe1.5IIFe1.5III(AsO4)F6]. The compounds crystallize in the orthorhombic Imam space group. The unit cell parameters calculated by using the...
Article
Two new fluoro-vanadyl-hydrogenarsenate compounds templated by ethylenediamine and piperazine with formula, (C2N2H10)0.5[(VO)(HAsO4)F] (1) and (C4N2H12)0.5[(VO)(HAsO4)F] (2), respectively, have been synthesized by using mild hydrothermal conditions under autogenous pressure. The crystal structures have been solved from single-crystal X-ray diffract...
Article
The exchange of the Li{sup +}(1), Na{sup +}(2) and K{sup +}(3) alkaline cations in the layered HNi(POâ).HâO was carried out starting from a methanolic solution containing the Li(OH).HâO hydroxide for (1) and the M(OH) (M=Na and K) hydroxides together with the (CâHââNHâ){sub 0.75}HNiPOâ.HâO phases for (2) and (3). The compounds are stable until, ap...
Article
(C4H12N2)1.5[Fe3(HAsO4)1.02(HPO4)0.98(AsO4)0.88(PO4)0.12F5] has been synthesized by using mild hydrothermal conditions under autogeneous pressure. The crystal structure was solved from X-ray single crystal data. The compound crystallizes in the monoclinic P21/c space group. The unit cell parameters are a=8.270(7), b=22.028(3), c=10.736(2)Å, beta=99...
Article
The Ni3(PO4)2 phosphate was synthesized by the ceramic method in air atmosphere. The crystal structure consists of a three-dimensional skeleton constructed from Ni3O14 edge-sharing octahedra, which are interconnected by (PO4)3− oxoanions with tetrahedral geometry. The magnetic behavior was studied on powdered sample by using susceptibility, specifi...
Article
A new iron(II)-iron(III) mixed valence fluoro-arsenate compound templated by propanediammonium cations has been synthesized by using mild hydrothermal conditions. The crystal structure has been solved from single-crystal x-ray diffraction data. This phase crystallizes in the Imam space group with the unit-cell parameters a = 7.566(2), b = 11.034(3)...
Article
(NH4)[Fe(AsO4)F] 1 has been synthesized under mild hydrothermal conditions. Single crystals of this phase heated under air atmosphere at 525 °C in a tubular furnace gave single crystals of the new polymorphous Fe(AsO4) 2. The crystal structure of both compounds has been determined from X-ray single-crystal diffraction data. Compound 1 crystallizes...
Article
{(NH4)[Fe(AsO4)F] 1 has been synthesized under mild hydrothermal conditions. Single crystals of this phase heated under air atmosphere at 525 degreesC in a tubular furnace gave single crystals of the new polymorphous Fe(AsO4) 2. The crystal structure of both compounds has been determined from X-ray single-crystal diffraction data. Compound 1 crysta...
Article
The new organically templated mixed-anion fluoro-arsenate–phosphate iron(III) compound, with formula (C6H14N2)[Fe3(HAsO4)1.33(HPO4)0.67(AsO4)0.84(PO4)0.16F4]0.5(H2O), has been synthesized by using mild hydrothermal conditions under autogeneous pressure. The crystal structure has been solved from X-ray single crystal data. The unit-cell parameters a...
Article
A new organically templated mixed-anion fluoro-arsenate-phosphate iron(III) compound, (C2H10N2)[Fe2(AsO4)2−x(PO4)xF2(H2O)] (x=0.46), has been synthesized by using mild hydrothermal conditions under autogeneous pressure. The crystal structure has been solved from X-ray single-crystal data. The compound crystallizes in the Pbca orthorhombic space gro...
Article
A new vanadium(III) phosphate, (NH4)[V(PO4)F], has been synthesized by using mild hydrothermal conditions under autogeneous pressure. The crystal structure has been solved from X-ray single crystal data. The compound crystallizes in the Pnna orthorhombic space group, with the unit-cell parameters a=12.982(2), b=10.608(1), c=6.4789(6)Å and Z=8. The...
Article
Full-text available
The new orthorhombic Fe(AsO4) phase has been synthesized by thermal treatment at 525 degrees C of a new (NH4)[Fe(AsO4)F] compound, with a [Fe(AsO4)F]- skeleton showing channels where the ammonium cations are located. The crystal structure of Fe(AsO4) has been solved from single-crystal data. The structure is formed by layers of edge-sharing dimeric...
Article
A new inorganic-organic hybrid fluorinated-iron(III) arsenate with the formula (C6H14N2)[Fe-3(HASO(4))(2)-(AsO4)F-4]0.5H(2)O is reported. The structure consists of a three-dimensional framework formed by chains and dimeric units of Fe(III) ions, which gives rise to layers interconnected by hydrogenarsenate anions. The ESR spectra are isotropic. Mag...
Article
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Article
A new iron(III) arsenate templated by ethylenediamine, (C2H10N2) [Fe(HAsO4)2(H2AsO4)](H2O), has been prepared by hydrothermal synthesis. The unit-cell parameters are a = 8.705(3) A, b = 16.106(4) A, c = 4.763(1) A, beta = 90.63(3) degrees; monoclinic, P2(1) with Z = 2. The compound exhibits a chain structure along the c-axis with the ethylenediammo...
Article
A new iron(III) arsenate templated by ethylenediamine, (C2H10N2)[Fe(HAsO4)(2)(H2AsO4)](H2O), has been prepared by hydrothermal synthesis. The unit-fell parameters are a 8.705(3) Angstrom, b = 16.106(4) Angstrom, c = 4.763(1) Angstrom, beta = 90.63(3)degrees; monoclinic, P2(1) with Z = 2. The compound exhibits a chain structure along the c-axis with...

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