0000000001301261
AUTHOR
Cristina Vallés-garcía
Design of stable mixed-metal MIL-101(Cr/Fe) materials with enhanced catalytic activity for the Prins reaction
[EN] This work highlights the benefit of designing mixed-metal (Cr/Fe) MOFs for enhanced chemical stability and catalytic activity. A robust and stable mixed-metal MIL-101(Cr/Fe) was prepared through a HF-free direct hydrothermal route with Fe(3+)content up to 21 wt%. The incorporation of Fe(3+)cations in the crystal structure was confirmed by(57)Fe Mossbauer spectrometry. The catalytic performance of the mixed metal MIL-101(Cr/Fe) was evaluated in the Prins reaction. MIL-101(Cr/Fe) exhibited a higher catalytic activity compared to MIL-101(Cr), improved chemical stability compared to MIL-101(Fe) and a higher catalytic activity for bulky substrates compared to MIL-100(Fe).In situinfra-red sp…
Nanosheets of Two-Dimensional Magnetic and Conducting Fe(II)/Fe(III) Mixed-Valence Metal-Organic Frameworks.
We report the synthesis, magnetic properties, electrical conductivity, and delamination into thin nanosheets of two anilato-based Fe(II)/Fe(III) mixed-valence two-dimensional metal–organic frameworks (MOFs). Compounds [(H3O)(H2O)(phenazine)3][FeIIFeIII(C6O4X2)3]·12H2O [X = Cl (1) and Br (2)] present a honeycomb layered structure with an eclipsed packing that generates hexagonal channels containing the water molecules. Both compounds show ferrimagnetic ordering at ca. 2 K coexisting with electrical conductivity (with room temperature conductivities of 0.03 and 0.003 S/cm). Changing the X group from Cl to Br leads to a decrease in the ordering temperature and room temperature conductivity tha…
Key Role of the Cation in the Crystallization of Chiral Tris(Anilato)Metalate Magnetic Anions
A complete study of the role played by the usually considered “innocent” cation in the synthesis of chiral tris(anilato)metalate magnetic complexes is presented. This study is based on the rational synthesis of the family of compounds formulated as A3[MIII(C6O4X2)3] with A+ = [PPh3Et]+, [PPh3Pr]+, [PBu4]+, [NHep4]+, and [PPh4]+; MIII = CrIII, FeIII, and GaIII; and [C6O4X2]2– (X = Cl, Br, and NO2; [C6O4X2]2– = dianion of the 3,6-disubstituted derivatives of 2,5-dihydroxy-1,4-benzoquinone, H4C6O4). We show and explain the unexpected key role played by the cations in isolating chiral or achiral crystals of these [MIII(C6O4X2)3]3– anions with D3 point group symmetry. Thus, among the 18 new comp…
2D and 3D Anilato-Based Heterometallic M(I)M(III) Lattices: The Missing Link
The similar bis-bidentate coordination mode of oxalato and anilato-based ligands is exploited here to create the first examples of 2D and 3D heterometallic lattices based on anilato ligands combining M(I) and a M(III) ions, phases already observed with oxalato but unknown with anilato-type ligands. These lattices are prepared with alkaline metal ions and magnetic chiral tris(anilato)metalate molecular building blocks: [M(III)(C6O4X2)3](3-) (M(III) = Fe and Cr; X = Cl and Br; (C6O4X2)(2-) = dianion of the 3,6-disubstituted derivatives of 2,5-dihydroxy-1,4-benzoquinone, H4C6O4). The new compounds include two very similar 2D lattices formulated as (PBu3Me)2[NaCr(C6O4Br2)3] (1) and (PPh3Et)2[KF…
CCDC 1415637: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1415635: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1470626: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Alexandre Abhervé, Patricia Gómez-Claramunt, Cristina Vallés-García, Carlos J. Gómez-García|2017|ACS Applied Materials and Interfaces|9|26210|doi:10.1021/acsami.7b08322
CCDC 1415636: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1415638: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1032220: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Cristina Vallés-García, Patricia Gómez-Claramunt, Guillermo Mínguez Espallargas, Carlos J. Gómez-García|2015|Inorg.Chem.|54|5410|doi:10.1021/acs.inorgchem.5b00451
CCDC 1470627: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Alexandre Abhervé, Patricia Gómez-Claramunt, Cristina Vallés-García, Carlos J. Gómez-García|2017|ACS Applied Materials and Interfaces|9|26210|doi:10.1021/acsami.7b08322
CCDC 1032219: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Cristina Vallés-García, Patricia Gómez-Claramunt, Guillermo Mínguez Espallargas, Carlos J. Gómez-García|2015|Inorg.Chem.|54|5410|doi:10.1021/acs.inorgchem.5b00451
CCDC 1032218: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Cristina Vallés-García, Patricia Gómez-Claramunt, Guillermo Mínguez Espallargas, Carlos J. Gómez-García|2015|Inorg.Chem.|54|5410|doi:10.1021/acs.inorgchem.5b00451
CCDC 1415639: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1415634: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Patricia Gómez-Claramunt, Cristina Vallés-García, Guillermo Mínguez Espallargas, Carlos J. Gómez García|2016|Cryst.Growth Des.|16|518|doi:10.1021/acs.cgd.5b01573
CCDC 1032217: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Cristina Vallés-García, Patricia Gómez-Claramunt, Guillermo Mínguez Espallargas, Carlos J. Gómez-García|2015|Inorg.Chem.|54|5410|doi:10.1021/acs.inorgchem.5b00451