ELENA LOPEZ-MAYA

• Chemistry
• PostDoc Position at University of Granada

We present a green procedure for the synthesis of metal−organic frameworks (MOFs) (having Zn, Ni, or Co) in graphene oxide aqueous suspensions (obtained with graphitized or non-graphitized carbon nanofibers) avoiding organic solvents and high temperatures. The materials were thoroughly characterized using X-ray diffraction (XRD), scanning electron...

A novel facile method to prepare ceria nanocrystals with well-defined cubic morphology and enhanced optical properties is herein disclosed. Both the decrease in the band gap and the appearance of absorption edges above 400 nm, which redound in a significant absorption of visible light, are accomplished by simply incorporating in situ different amou...

The introduction of iron ionic sites by metal exchange of defective homometallic nickel pyrazolate frameworks generates non‐precious, Earth‐abundant, first‐row heterometallic Fe/Ni‐pyrazolate frameworks. The Fe incorporation at the Ni nodes of the framework allows to control the hydrogen peroxide activation, minimizing its decomposition and O2 libe...

We report the controlled synthesis of thin films of prototypical zirconium metal–organic frameworks [Zr6O4(OH)4(benzene-1,4-dicarboxylate-2-X)6] (X = H, UiO-66 and X = NH2, UiO-66-NH2) over the external surface of shaped carbonized substrates (spheres and textile fabrics) using a layer-by-layer method. The resulting composite materials contain meta...

We introduce the first example of isoreticular titanium–organic frameworks, MUV‐10 and MUV‐12, to show how the different affinity of hard Ti(IV) and soft Ca(II) metal sites can be used to direct selective grafting of amines. This enables the combination of Lewis acid titanium centers and available ‐NH2 sites in two sizeable pores for cooperative cy...

A selective grafting route for heterometallic MOFs is described by Carlos Martí‐Gastaldo and co‐workers in their Research Article (DOI: 10.1002/anie.202100176). The different chemistry of Ti(IV) and Ca(II) sites is used to direct selective coordination of amines to the latter. This enables the combination of Lewis acid titanium centers and availabl...

Selektives Grafting wird von Carlos Martí‐Gastaldo und Mitarbeitern in ihrem Forschungsartikel (DOI: 10.1002/anie.202100176) für die Synthese heterometallischer MOFs verwendet. Die unterschiedliche Chemie von Ti(IV)‐ und Ca(II)‐Zentren wird genutzt, um eine selektive Koordination von Aminen an die Ca(II)‐Zentren zu bewirken. Dies ermöglicht die Kom...

The different affinity of Ti(IV) and Ca(II) sites to direct selective coordination of amines was used. This enables the combination of Lewis acid and available ‐NH2 sites in sizeable pores for cooperative cycloaddition of CO2 to epoxides. MUV‐12 displays full conversion of propylene oxide at room temperature and atmospheric pressure in absence of a...

Zn-containing metal-organic frameworks have been used for the first time as heterogeneous catalysts in the amination of C-Cl bonds. The use of extended bis(pyrazolate) linkers can generate highly porous architectures, which favor the diffusion of amines to the confined spaces with respect to other imidazolate frameworks with narrower pore windows....

Correction for ‘One-pot synthesis of a new generation of hybrid bisphosphonate polyoxometalate gold nanoparticles as antibiofilm agents’ by S. Tomane et al. , Nanoscale Adv. , 2019, 1 , 3400–3405.

A reduced polyoxovanadate functionalized with bisphosphonate molecules was synthesized and used to prepare in one step hybrid organic-inorganicpolyoxometalate decorated gold nanoparticles. These new composites were shown to strongly inhibit P....

UiO-66, MOF-808 and NU-1000 metal-organic frameworks exhibit a differentiated reactivity to-wards [Mg(OMe)2(MeOH)2]4 related to the accessi-bility of the pore structure. Microporous UiO-66 remains unchanged while mesoporous MOF-808 and hierarchical micro/mesoporous NU-1000 mate-rials give rise to the formation of doped systems containing exposed Mg...

Well-dispersed [Pd(NH3)4]²⁺ sites have been introduced in the defective nickel pyrazolate porous framework, known as K@NiBDP. The resulting porous crystalline material shows a superior catalytic behavior for C–N bond formations than [Pd(NH3)4]²⁺ containing zeolite HY. The palladium exchanged catalyst, Pd@NiBDP, is able to promote both intra- and in...

Zeolites are natural or synthetic materials with porous chemical structures that are valuable due to their absorptive and catalytic qualities. Metal-Organic Frameworks (MOFs) are manmade organometallic polymers with similar porous structures. This introductory book, with contributions from top-class researchers from all around the world, examines t...

The Cover Feature shows a tandem two-step C−C bond formation catalyzed by a new copper ion exchanged metal-organic framework (MOF) with high basicity and stability. In their Communication, F. G. Cirujano, E. López-Maya et al. describe how to selectively direct the tandem C−C bond formation towards the desired pharmaceutical intermediate by tuning t...

Copper ion exchanged nickel pyrazolate frameworks behave as selective heterogeneous catalysts for the Henry reaction/Michael type addition one-pot two-step synthesis of neuroactive pharmaceutical intermediates starting from nitromethane and benzaldehyde. Tuning the basicity of multifunctional MOF catalysts through ion exchange with copper(II) catio...

The widespread emissions of toxic gases from fossil fuel combustion represent major welfare risks. Here we report the improvement of the selective sulfur dioxide capture from flue gas emissions of isoreticular nickel pyrazolate metal organic frameworks through the sequential introduction of missing-linker defects and extra-framework barium cations....

Supplementary Figures, Supplementary Tables, Supplementary Methods, Supplementary Notes and Supplementary References

The current technology of air filtration materials for protection against highly toxic chemicals, i.e. chemical warfare agents, is mainly based on the broad and effective adsorptive properties of hydrophobic activated carbons. However, adsorption does not prevent these materials to behave as secondary emitters once they are contaminated. Thus, the...

The current technology of air-filtration materials for protection against highly toxic chemicals, that is, chemical-warfare agents, is mainly based on the broad and effective adsorptive properties of hydrophobic activated carbons. However, adsorption does not prevent these materials from behaving as secondary emitters once they are contaminated. Th...

The adsorptive properties of the isoreticular series [Ni8(OH)4(H2O)2(BDP_X)6] (H2BDP_X = 1,4-bis(pyrazol-4-yl)benzene-4-X with X = H (1), OH (2), NH2 (3)) can be enhanced by postsynthetic treatment with an excess of KOH in ethanol. In the case of X = H, NH2, this treatment leads to partial removal of the organic linkers, deprotonation of coordinate...

Tunable hydrophobicity: Efficient air filters for the protection against chemical warfare agents might be achieved by surface functionalization of the pores in robust metal-organic frameworks (MOFs) with fluoroalkyl residues and the precise control of their pore size. These MOFs capture harmful volatile organic compounds even under extremely moist...