0000000001305664
AUTHOR
Walter Cañon-mancisidor
showing 29 related works from this author
Functionalization using biocompatible carboxylated cyclodextrins of iron-based nanoMIL-100
2021
9 pags., 7 figs., 1 tab.
Structural re-arrangement in two hexanuclear CuIIcomplexes: from a spin frustrated trigonal prism to a strongly coupled antiferromagnetic soluble rin…
2014
The addition of water to a chloroform solution of the Cu6 trigonal prism complex [Cu6(μ6F)(μ2OH)(μ3OCH3)2(μ2OCH3)2(3,5-Me2pz)6] (1) (3,5-Me2pz− = 3,5-dimethylpyrazolate) results in the formation of the Cu6 planar hexagonal ring complex [Cu6(μ2OH)6(3,5-Me2pz)6]·CH3CN·CHCl3 (2). A simple mechanism for this structural re-arrangement is proposed, in which 2 can be viewed as a hydrolysis product of 1. This process is clearly noticeable in the magnetic properties, which change from spin frustrated with a weak antiferromagnetic coupling in 1, to strongly antiferromagnetic in 2. Interestingly, the hexagonal ring complex 2 self-assembles in the solid state to form a porous hexagonal tubular structur…
New hexanuclear FeIII clusters with the gem-diol hydrated form of di(2-pyridyl)ketone and carboxylato ligands: Crystal structures and magnetic proper…
2019
Abstract The hexanuclear compounds [Fe6O2Cl2{(py)2CO2}2(pyOH)2(pyCOO)2(ButCOO)6] (1) and [Fe6O2{(py)2CO2}2(pyCOO)4(ButCOO)6] (2) were obtained by condensation of the trinuclear μ3-oxo-centered iron(III) pivalate [Fe3O(ButCOO)6(H2O)3]+ in the presence of di(2-pyridyl)ketone [(py)2CO] in MeCN at ambient temperature. Both complexes contain an analogous core which can be described as two {Fe3O}7+ units joined by gem-diolato (py)2CO22− bridges. Variable-temperature magnetic susceptibility measurements in polycrystalline samples of 1 and 2 reveal strong antiferromagnetic couplings between the iron(III) ions leading to S = 0 ground states.
A tris-oxovanadium pyrogallate complex: synthesis, structure, and magnetic and electronic properties
2021
International audience; With the aim of identifying new cation-phenolate complexes, we herein investigated the reactivity of pyrogallol (H(3)pgal) with vanadium salts. A trimetallic anionic complex was identified, and found to be formed under a broad set of reaction conditions. This complex, with the formula V3O3(pgal)(3)(3-), consists of three oxovanadium(iv) units connected together by three pyrogallate ligands to afford a bowl-shaped species presenting a pseudo 3-fold symmetry axis. Its crystal structure is reported, as well as its characterisation by a broad set of techniques, including powder X-ray diffraction, thermogravimetric analysis, infrared and Raman spectroscopy, and solid stat…
A systematic study of the optical properties of mononuclear hybrid organo-inorganic lanthanoid complexes
2020
A series of hybrid organo-inorganic mononuclear lanthanoid complexes, [n-NBu4]3[LnH(PW11O39)(phen)2]·H2O, denoted as LM4-1-Ln (Ln = DyIII, TbIII, EuIII, NdIII, ErIII, HoIII and GdIII), were synthesized via hydrothermal synthesis and were structurally characterized by X-ray diffraction. The optical properties of all complexes have been investigated in the solid state. The temperature-dependent emission spectra of LM4-1-Dy, LM4-1-Tb and LM4-1-Eu complexes show intense lanthanoid emissions in the visible region, while LM4-1-Nd shows near-infrared (NIR) luminescence. The EuIII complex shows typical strong red emissions from the 5D0 → 7F0,1,2,3,4 transitions, with the CIE colour coordinates (0.6…
Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes
2018
A new family of chloroquinolinate lanthanoid complexes of the formula A+[Ln(5,7Cl2q)4]−, with Ln = Y3+, Tb3+ and Dy3+ and A+ = Na+, NEt4+ and K0.5(NEt4)0.5+, is studied, both in bulk and as thin films. Several members of the family are found to present single-molecule magnetic behavior in bulk. Interestingly, the sodium salts can be sublimed under high vacuum conditions retaining their molecular structures and magnetic properties. These thermally stable compounds have been deposited on different substrates (Al2O3, Au and NiFe). The magnetic properties of these molecular films show the appearance of cusps in the zero-field cooled curves when they are deposited on permalloy (NiFe). This indic…
Structural and magnetic characterization of the tridimensional network [Fe(HCO2)3]n·nHCO2H
2013
In this work we report the structural and magnetic characterization of a new three-dimensional porous metal–organic framework (MOF) based on iron(III) and the formate anion, [Fe(HCO2)3]n·nHCO2H (1), which was obtained by solvothermal synthesis. The tridimensional structure crystallizes in the trigonal space group Rc and is formed by highly regular octahedral Fe(OHCO)6 units. These units contain six equal Fe–O distances, with angles slightly different from 90° or 180°. The packing of 1 corresponds to a 3D covalent network defined by face sharing between the parallelepipeds, which are formed by the interactions of Fe(OHCO)6 units through formate ligands, thus generating a 41263 topology. This…
Sublimable Single Ion Magnets Based on Lanthanoid Quinolinate Complexes: The Role of Intermolecular Interactions on Their Thermal Stability
2018
We report the design, preparation, and characterization of two families of thermally robust coordination complexes based on lanthanoid quinolinate compounds: [Ln(5,7-Br2q)4]− and [Ln(5,7-ClIq)4]−, where q = 8-hydroquinolinate anion and Ln = DyIII, TbIII, ErIII, and HoIII. The sodium salt of [Dy(5,7-Br2q)4]− decomposes upon sublimation, whereas the sodium salt of [Dy(5,7- ClIq)4]−, which displays subtly different crystalline interactions, is sublimable under gentle conditions. The resulting film presents low roughness with high coverage, and the molecular integrity of the coordination complex is verified through AFM, MALDI-TOF, FT-IR, and microanalysis. Crucially, the single-molecule magnet …
Slow Relaxation of the Magnetization on Frustrated Triangular FeIII Units with S= 1/2 Ground State: The Effect of the Highly Ordered Crystal Lattice …
2021
In order to understand how the different arrangements of highly ordered triangular FeIII S = 1/2 systems with various types of diamagnetic and paramagnetic anions affect their static and dynamic magnetic properties, we have obtained by solvothermal synthesis four new μ3-oxido trinuclear FeIII compounds, [Fe3O(Ac)6(AcNH2)3][BF4]·(CH3CONH2)0.5(H2O)0.5 (1-BF4), [Fe3O(Ac)6(AcNH2)3][GaCl4] (1-GaCl4), [Fe3O(Ac)6(AcNH2)3][FeCl4] (1-FeCl4) and [Fe3O(Ac)6(AcNH2)3][FeBr4] (1-FeBr4), where, Ac- = CH3COO- and AcNH2 = CH3CONH2. The organization of the triangular units is very varied, from segregated stacks to eclipsed equilateral triangular [Fe3O]+ units along the c-axis with intercalated [MX4]- units. …
Hybrid organic-inorganic mononuclear lanthanoid single ion magnets
2019
The first family of hybrid mononuclear organic-inorganic lanthanoid complexes is reported, based on [PW11O39]7− and 1,10-phenanthroline ligands. This hybrid approach causes a dramatic improvement of the relaxation time (×1000) with a decrease of the optimal field while maintaining the Ueff of the inorganic analogues.
Magnetic properties of vanadium(IV)-based extended systems: [(VO)3(μ-PO4)2(2,2′-bpy)(μ-OH2)]*1/3H2O and (VO)2H4P2O9
2013
International audience; The magnetic properties of [(VO)3(μ-PO4)2(2,2′-bpy)(μ-OH2)]1/3H2O (1) and (VO)2H4P2O9 (2), a tubular and a layered vanadium(IV) phosphates containing triply oxido bridged VIV dimers, are analyzed considering the Bleaney-Bowers S = 1/2 dimer model. In compound 1 the presence of an additional VIV connected with the VIV dimers through μ1,2-PO43− bridges is described with a Curie-Weiss type correction. This model reproduces the magnetic properties of compound 1 with g = 1.956, Jdim = −102.1 cm−1, θ = −0.4 cm−1 and Nα = 278 × 10−6 emu mol−1. In compound 2, the presence of a small percentage of paramagnetic impurity has to be considered to account for the divergence of χm …
Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes† †Electronic supplementary information (ESI) availab…
2017
Magnetic analogues of Alq3 give rise to molecular/ferromagnetic interfaces with specific hybridization, opening the door to interesting spintronic effects.
CCDC 1562347: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 1901540: Experimental Crystal Structure Determination
2019
Related Article: Livia Arizaga, Walter Cañon-Mancisidor, Jorge S. Gancheff, Robert A. Burrow, Donatella Armentano, Francesc Lloret, Ricardo González, Carlos Kremer, Raúl Chiozzone|2019|Polyhedron|174|114165|doi:10.1016/j.poly.2019.114165
CCDC 1562346: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 1562348: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 927863: Experimental Crystal Structure Determination
2013
Related Article: Walter Cañon-Mancisidor, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Andres Vega, Evgenia Spodine, Diego Venegas-Yazigi, Eugenio Coronado|2014|Chemical Science|5|324|doi:10.1039/C3SC52628C
CCDC 1901541: Experimental Crystal Structure Determination
2019
Related Article: Livia Arizaga, Walter Cañon-Mancisidor, Jorge S. Gancheff, Robert A. Burrow, Donatella Armentano, Francesc Lloret, Ricardo González, Carlos Kremer, Raúl Chiozzone|2019|Polyhedron|174|114165|doi:10.1016/j.poly.2019.114165
CCDC 1562344: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 1557648: Experimental Crystal Structure Determination
2017
Related Article: Sara G. Miralles, Amilcar Bedoya-Pinto, José J. Baldoví, Walter Cañon-Mancisidor, Yoann Prado, Helena Prima-Garcia, Alejandro Gaita-Ariño, Guillermo Mínguez Espallargas, Luis E. Hueso, Eugenio Coronado|2018|Chemical Science|9|199|doi:10.1039/C7SC03463F
CCDC 1557649: Experimental Crystal Structure Determination
2017
Related Article: Sara G. Miralles, Amilcar Bedoya-Pinto, José J. Baldoví, Walter Cañon-Mancisidor, Yoann Prado, Helena Prima-Garcia, Alejandro Gaita-Ariño, Guillermo Mínguez Espallargas, Luis E. Hueso, Eugenio Coronado|2018|Chemical Science|9|199|doi:10.1039/C7SC03463F
CCDC 1562345: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 1562349: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 1562351: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 927864: Experimental Crystal Structure Determination
2013
Related Article: Walter Cañon-Mancisidor, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Andres Vega, Evgenia Spodine, Diego Venegas-Yazigi, Eugenio Coronado|2014|Chemical Science|5|324|doi:10.1039/C3SC52628C
CCDC 927862: Experimental Crystal Structure Determination
2013
Related Article: Walter Cañon-Mancisidor, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Andres Vega, Evgenia Spodine, Diego Venegas-Yazigi, Eugenio Coronado|2014|Chemical Science|5|324|doi:10.1039/C3SC52628C
CCDC 1562350: Experimental Crystal Structure Determination
2018
Related Article: Walter Cañon-Mancisidor, Sara G. Miralles, José J. Baldoví, Guillermo Mínguez Espallargas, Alejandro Gaita-Ariño, Eugenio Coronado|2018|Inorg.Chem.|57|14170|doi:10.1021/acs.inorgchem.8b02080
CCDC 927865: Experimental Crystal Structure Determination
2013
Related Article: Walter Cañon-Mancisidor, Carlos J. Gómez-García, Guillermo Mínguez Espallargas, Andres Vega, Evgenia Spodine, Diego Venegas-Yazigi, Eugenio Coronado|2014|Chemical Science|5|324|doi:10.1039/C3SC52628C
CCDC 1557647: Experimental Crystal Structure Determination
2017
Related Article: Sara G. Miralles, Amilcar Bedoya-Pinto, José J. Baldoví, Walter Cañon-Mancisidor, Yoann Prado, Helena Prima-Garcia, Alejandro Gaita-Ariño, Guillermo Mínguez Espallargas, Luis E. Hueso, Eugenio Coronado|2018|Chemical Science|9|199|doi:10.1039/C7SC03463F