A5041910204- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Metal complexes synthesis and properties
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Metal-Catalyzed Oxygenation Mechanisms
- Organic and Molecular Conductors Research
- Porphyrin and Phthalocyanine Chemistry
- Organometallic Complex Synthesis and Catalysis
- Crystal structures of chemical compounds
- Supramolecular Chemistry and Complexes
- Advanced NMR Techniques and Applications
- Electron Spin Resonance Studies
- Inorganic Chemistry and Materials
- Polyoxometalates: Synthesis and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- Molecular Sensors and Ion Detection
- Oxidative Organic Chemistry Reactions
- Crystal Structures and Properties
- Radical Photochemical Reactions
- Advanced Condensed Matter Physics
- Synthesis and Properties of Aromatic Compounds
- Inorganic and Organometallic Chemistry
Parc Científic de la Universitat de València
2016-2025
Royal Society of Chemistry
2024
Centre National pour la Recherche Scientifique et Technique (CNRST)
2024
Universitat de València
2014-2023
Universidad de la República
1999-2023
Centro Médico Sanitas Valencia
2016-2020
Fundacio Investigacio Hospital General Universitari De Valencia
2018
Instituto de Física Corpuscular
2015-2018
Institut Laue-Langevin
2009-2017
Rede de Química e Tecnologia
2014
The novel mononuclear Co(II) complex cis-[Co(II)(dmphen)(2)(NCS)(2)]·0.25EtOH (1) (dmphen = 2,9-dimethyl-1,10-phenanthroline) features a highly rhombically distorted octahedral environment that is responsible for the strong positive axial and rhombic magnetic anisotropy of high-spin ion (D +98 cm(-1) E +8.4 cm(-1)). Slow relaxation effects were observed 1 in presence dc field, constituting first example field-induced single-molecule magnet behavior six-coordinate with transverse energy barrier.
A complex-as-ligand strategy to get a multifunctional molecular material led metal-organic framework with the formula (NH(4))(4)[MnCr(2)(ox)(6)]·4H(2)O. Single-crystal X-ray diffraction revealed that anionic bimetallic coordination network adopts chiral three-dimensional quartz-like architecture. It hosts ammonium cations and water molecules in functionalized channels. In addition ferromagnetic ordering below T(C) = 3.0 K related host network, exhibits very high proton conductivity of 1.1 ×...
Abstract A robust and water‐stable metal–organic framework (MOF), featuring hexagonal channels decorated with methionine residues ( 1 ), selectively captures toxic species such as CH 3 Hg + 2+ from water. exhibits the largest uptake capacity ever reported for a MOF, decreasing [Hg ] [CH concentrations in potable water highly hazardous 10 ppm to much safer values of 6 27 ppb, respectively. Just like biological systems, high‐performance metal capture also involves molecular recognition...
The Ising on the cake: cyanide-bridged low-spin FeIII–high-spin CoII compounds of formula [{FeL(CN)4}2Co(H2O)2]⋅4 H2O with L=2,2′-bipyridine (bpy; see picture; Ow=water O-atom) or 1,10-phenanthroline are 1D systems and first examples ferromagnetically coupled bimetallic chains which show slow magnetic relaxation hysteresis effects. compounds, therefore, behave as nanowires. Supporting information for this article is available WWW under...
Intralayer antiferromagnetic and ferromagnetic couplings could be correctly predicted by the spin polarization mechanism for sheetlike polymers [Co(NCS)2(pyz)2]n [Co(NCS)2(pym)2]n (structure depicted on right). These structurally characterized compounds monomeric complex [Co(NCS)2(pyd)4], which was synthesized comparison, were obtained from solutions containing Co(NCS)2 pyrazine (pyr), pyrimidine (pym), or pyridazine (pyd) in methanol.
We herein present the preparation, crystal structure, magnetic properties, and theoretical study of new heterobimetallic chains formula {[Fe(III)(bpym)(CN4)]2M(II)(H2O)2}.6H2O [bpym = 2,2'-bipyrimidine; M Zn (2), Co (3), Cu (4), Mn (5)] which are obtained by using building block PPh4[Fe(bpym)(CN)4].H2O (1) (PPh4+= tetraphenylphosphonium) as a ligand toward fully solvated MII ions. The structure complex 1 contains mononuclear [Fe(bpym)(CN)4]- anions. Compounds 2-5 isostructural 4,2-ribbonlike...
Clusters of magnets: The first examples manganese single-molecule magnets (SMMs) consisting exclusively trivalent metal centers are reported. These hexanuclear clusters containing the [MnIII6(μ3-O)2(μ2-OR)2]12+ core (see picture, Mn yellow, O red) and have an S=4 ground state. Variation oxygen-containing ligands allows a potentially large family SMMs to be prepared. Supporting information for this article is available on WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z51079_s.pdf or...
Three malonato-bridged copper(II) complexes of the formulas [[Cu(H2O)3][Cu(C3H2O4)2(H2O)]]n (1), [[Cu(H2O)4]2[Cu(C3H2O4)2(H2O)]] [Cu(C3H2O4)2(H2O)2][[Cu(H2O)4][Cu(C3H2O4)2(H2O)2]] (2), and [Cu(H2O)4][Cu(C3H2O4)2(H2O)2] (3) (C3H2O4 = malonate dianion) have been prepared, structures two former solved by X-ray diffraction methods. The structure compound 3 was already known. Complex 1 crystallizes in orthorhombic space group Pcab, Z 8, with unit cell parameters a 10.339(1) A, b 13.222(2) c...
Chains of fused NiII octahedral units form a 3D network and thereby the first example homometallic ferrimagnet. The material was characterized by X-ray analysis low-temperature magnetic study. structure features an infinite -Ni-(μ3-OH)-Ni2- chain spin adjacent Ni centers alternates between S=1 S=2 (see picture).
The synthesis, X-ray structures, and magnetic behavior of two new, three-dimensional compounds [W(IV)[(mu-CN)(4)Co(II)(H(2)O)(2)](2).4H(2)O](n) (1) [[W(V)(CN)(2)](2)[(mu-CN)(4)Co(II)(H(2)O)(2)](3).4H(2)O](n) (2) are presented. Compound 1 crystallizes in the tetragonal system, space group I4/m with cell constants a = b 11.710(3) A, c 13.003(2) Z 4, whereas 2 orthorhombic Cmca 13.543(5) 16.054(6) 15.6301(9) 4. structure shows alternating eight-coordinated W(IV) six-coordinated Co(II) ions...
New copper(II) complexes of the cyclic trinuclear type with 1,2,4-triazole ligands, [Cu(3)(mu(3)-OH)(aaat)(3)(H(2)O)(3)](NO(3))(2).H(2)O [Haaat = 3-acetylamino-5-amino-1,2,4-triazole] (1) and ([Cu(3)(mu(3)-OH)(aat)(3)(mu(3)-SO(4))].6H(2)O)(n) [Haat 3-acetylamino-1,2,4-triazole] (2), have been prepared characterized by X-ray crystallography magnetic measurements. Compound 1, first reported ligand (H)aaat, consists discrete cations, associated NO(3)(-) anions lattice water molecules. 2 unusual...
The reaction of Ln(NO3)3.aq with K3[Fe(CN)6] or K3[Co(CN)6] in N,N'-dimethylformamide (DMF) led to 25 heterodinuclear [Ln(DMF)4(H2O)3(mu-CN)Fe(CN)5].nH2O and [Ln(DMF)4(H2O)3(mu-CN)Co(CN)5].nH2O complexes (with Ln = all the lanthanide(III) ions, except promethium lutetium). Five (Pr(3+)-Fe3+), (Tm(3+)-Fe3+), (Ce(3+)-Co3+), (Sm(3+)-Co3+), (Yb(3+)-Co3+) have been structurally characterized; they crystallize equivalent monoclinic space groups P21/c P21/n. Structural studies these two families...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry and physics of the novel molecular-based compound exhibiting a spontaneous magnetization below Tc = 14 K, MnCu(obbz).cntdot.1H2O (obbz oxamidobis(benzoato)). Comparison with antiferromagnet MnCu(obbz).cntdot.5H2O. Crystal structure magnetic properties NiCu(obbz).cntdot.6H2OKeitaro Nakatani, Jean Yves Carriat, Journaux, Olivier Kahn, Francisco Lloret, Pierre Renard, Yu Pei, Jorunn Sletten, Michel VerdaguerCite this: J. Am. Chem. Soc. 1989,...
Multiferroic materials: A novel class of multiferroics based on organic–inorganic hybrid materials is synthesized. The ferromagnetic properties originate from the coordination network, whereas ferroelectricity results polar organic ions (see picture, M=magnetization and P=polarization). Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note:...
There is plenty of room at the bottom: A gap in literature molecular nanomagnets has been filled with preparation first mononuclear manganese(III) complex exhibiting a slow relaxation magnetization, that is, species single slow-relaxing, highly anisotropic MnIII ion, as confirmed by very low-temperature micro-SQUID magnetization and high-field EPR spectroscopic measurements (N blue, O red, Mn purple, Cl green). As service to our authors readers, this journal provides supporting information...
Neutron diffraction studies have been carried out to shed light on the unprecedented order–disorder phase transition (ca. 155 K) observed in mixed-valence iron(II)–iron(III) formate framework compound [NH2(CH3)2]n[FeIIIFeII(HCOO)6]n. The crystal structure at 220 K was first determined from Laue data, then a second refinement 175 and determination low temperature 45 were done with data monochromatic high resolution single diffractometer D19. nuclear reveals that is associated of...
On the road to chemical sensors: A novel 2D oxamato-based manganese(II)-copper(II) mixed-metal–organic framework (M'MOF) exhibiting non-linear fluorescence and long-range magnetic ordering is reported. This new luminescent nanoporous magnet features highly selective solvent- gas sorption-induced optical switching behavior, opening door potential application for sensing of small molecules. Detailed facts importance specialist readers are published as "Supporting Information". Such documents...
By changing template cation but introducing trivalent iron ions in the known niccolite structural metal formate frameworks, three complexes formulated [NH2(CH3)2][FeIIIMII(HCOO)6] (M = Fe for 1, Mn 2, and Co 3) were synthesized magnetically characterized. The variation compositions of leads to different complexes: mixed-valent complex heterometallic with same spin state heterospin 3. magnetic behaviors are closely related divalent used. Complex 1 exhibits negative magnetization assigned as...
The synthesis, structure, magnetic, and luminescence properties of the Zn2Dy2 tetranuclear complex formula {(μ3-CO3)2[Zn(μ-L)Dy(NO3)]2}·4CH3OH (1), where H2L is compartmental ligand N,N',N″-trimethyl-N,N″-bis(2-hydroxy-3-methoxy-5-methylbenzyl)diethylenetriamine, are reported. carbonate anions that bridge two Zn(μ-L)Dy units come from atmospheric CO2 fixation in a basic medium. Fast quantum tunneling relaxation magnetization (QTM) very effective this compound, so single-molecule magnet (SMM)...