0000000001307140
AUTHOR
Antonio Hernández-paredes
Slow Relaxation of the Magnetization in Anilato-Based Dy(III) 2D Lattices.
The search for two- and three-dimensional materials with slow relaxation of the magnetization (single-ion magnets, SIM and single-molecule magnets, SMM) has become a very active area in recent years. Here we show how it is possible to prepare two-dimensional SIMs by combining Dy(III) with two different anilato-type ligands (dianions of the 3,6-disubstituted-2,5-dihydroxy-1,4-benzoquinone: C6O4X22−, with X = H and Cl) in dimethyl sulfoxide (dmso). The two compounds prepared, formulated as: [Dy2(C6O4H2)3(dmso)2(H2O)2]·2dmso·18H2O (1) and [Dy2(C6O4Cl2)3(dmso)4]·2dmso·2H2O (2) show distorted hexagonal honeycomb layers with the solvent molecules (dmso and H2O) located in the interlayer space and…
Slow relaxation in doped coordination polymers and dimers based on lanthanoids and anilato ligands
Abstract In this work we report the synthesis, structure and magnetic properties of two lanthanoid based coordination polymers (CP) and two dimers prepared with two derivatives of the 2,5-dihydroxy-1,4-benzoquinone (C6O4X2)2− as ligands. Using the bromanilato ligand: (C6O4Br2)2− we have prepared the CP [Eu1.96Dy0.04(C6O4Br2)3(DMSO)6]·2DMSO (1) (DMSO = dimethylsulfoxide) and with the chlorocyananilato ligand: (C6O4(CN)Cl)2−) we have prepared one CP formulated as [Eu1.96Dy0.04(C6O4(CN)Cl)3(DMSO)6] (2) and two isostructural dimers: [Eu1.96Dy0.04(C6O4(CN)Cl)3(H2O)10]·6H2O (3) and [Eu2(C6O4(CN)Cl)3(H2O)10]·6H2O (4). Compounds 1, 2 and 3 are Eu(III) compounds doped with 2.0 % of Dy(III), whereas …
Effect of the lanthanoid-size on the structure of a series of lanthanoid-anilato 2-D lattices
AbstractWe report the synthesis and characterization of a series of Ln-based bromoanilato 2-D lattices with dimethyl sulfoxide (DMSO): [Ln2(C6O4Br2)3(DMSO)n]·2DMSO·mH2O with n = 6 and m = 0 for Ln = La (1), Ce (2), Pr (3), Nd (4), Sm (5), Eu (6) and Gd (7); n = 4 and m = 2 for Ln = Tb (8), Dy (9), Ho (10), Er (11), Tm (12) and Yb (13) (C6O4Br22− = 3,6-dibromo-2,5-dihydroxy-1,4-benzoquinone = bromoanilato). The X-ray analysis shows that the largest Ln(III) ions (La-Gd, 1-7) crystallize in the monoclinic P21/n space group (phase I), whereas the smaller Ln(III) ions (Tb–Yb, 8–13) crystallize in the triclinic P-1 space group (phase II). Both phases present a (6,3)-2-D topology but show importan…
Slow relaxation of the magnetization, reversible solvent exchange and luminescence in 2D anilato-based frameworks.
A series of multifunctional 2D frameworks prepared with Dy(iii) and the bromanilato ligand, formulated as: [Dy2(C6O4Br2)3(G)n]·nG with G = H2O, dimethylformamide (dmf) and dimethylsulfoxide (dmso), can exchange the coordinated and non-coordinated solvent molecules (G) in a reversible way. These multifunctional frameworks show field induced slow relaxation of the magnetization and luminescence that can be easily and reversibly modified by solvent exchange.
CCDC 1907204: Experimental Crystal Structure Determination
Related Article: Antonio Hernández-Paredes, Christian Cerezo-Navarrete, Carlos J. Gómez García, Samia Benmansour|2019|Polyhedron|170|476|doi:10.1016/j.poly.2019.06.004
CCDC 2054148: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Antonio Hernández-Paredes, María Bayona-Andrés, Carlos J. Gómez-García|2021|Molecules|26|1190|doi:10.3390/molecules26041190
CCDC 2005220: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Antonio Hernández-Paredes, Arpan Mondal, Gustavo López Martínez, Josep Canet-Ferrer, Sanjit Konar, Carlos J. Gómez-García|2020|Chem.Commun.|56|9862|doi:10.1039/D0CC03964K
CCDC 1565283: Experimental Crystal Structure Determination
Related Article: Samia Benmansour, Antonio Hernández-Paredes, Arpan Mondal, Gustavo López Martínez, Josep Canet-Ferrer, Sanjit Konar, Carlos J. Gómez-García|2020|Chem.Commun.|56|9862|doi:10.1039/D0CC03964K
CCDC 1907203: Experimental Crystal Structure Determination
Related Article: Antonio Hernández-Paredes, Christian Cerezo-Navarrete, Carlos J. Gómez García, Samia Benmansour|2019|Polyhedron|170|476|doi:10.1016/j.poly.2019.06.004
CCDC 1907202: Experimental Crystal Structure Determination
Related Article: Antonio Hernández-Paredes, Christian Cerezo-Navarrete, Carlos J. Gómez García, Samia Benmansour|2019|Polyhedron|170|476|doi:10.1016/j.poly.2019.06.004
CCDC 1907205: Experimental Crystal Structure Determination
Related Article: Antonio Hernández-Paredes, Christian Cerezo-Navarrete, Carlos J. Gómez García, Samia Benmansour|2019|Polyhedron|170|476|doi:10.1016/j.poly.2019.06.004