A5061039117- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Metal-Organic Frameworks: Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Organic and Molecular Conductors Research
- Polyoxometalates: Synthesis and Applications
- High-pressure geophysics and materials
- Nanocluster Synthesis and Applications
- Magnetic properties of thin films
- Perovskite Materials and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- 2D Materials and Applications
- Inorganic Fluorides and Related Compounds
- Organometallic Compounds Synthesis and Characterization
- Porphyrin and Phthalocyanine Chemistry
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
Paul Pascal Research Center
2017-2022
Centre National de la Recherche Scientifique
2017-2022
Université de Bordeaux
2017-2022
Institut de Chimie de la Matière Condensée de Bordeaux
2017-2020
Institut Polytechnique de Bordeaux
2017-2020
Brock University
2014-2020
University of Patras
2014-2020
Center for Research in Psychopathology and Clinical Psychology
2020
Canadian Sleep Society
2014-2016
Lightening the load Permanent magnets are generally produced from solid metals or alloys. Less dense compositions involving lighter elements tend to demagnetize well below room temperature under modest applied external fields. Perlepe et al. now report that chemical reduction of a low-density chromium-pyrazine network produces magnet remains stable above 200°C and resists demagnetization with 7500-oersted coercivity at temperature. The straightforward synthetic route material shows promise...
There has been a renaissance in the interdisciplinary field of Molecular Magnetism since ~2000, due to discovery impressive properties and potential applications d- f-metal Single-Molecule Magnets (SMMs) Single-Ion (SIMs) or Monometallic Magnets. One consequences this an explosive growth synthetic molecular inorganic organometallic chemistry. In SMM SIM chemistry, organic ligands play decisive role, sometimes equally important that magnetic metal ion(s). bridging propagate strong...
Electronic synergy between metal ions and organic linkers is a key to engineering molecule-based materials with high electrical conductivity and, ultimately, metallicity. To enhance in metal-organic solids, chemists aim bring the electrochemical potentials of constituent bridging ligands closer quest obtain metal-d ligand-π admixed frontier bands. Herein, we demonstrate critical role ion tuning electronic ground state such materials. While VCl2(pyrazine)2 an insulator, TiCl2(pyrazine)2...
Three structurally and magnetically different tetranuclear Ni(II) complexes have been isolated characterized, emphasizing the effect of reaction solvent organic ligand substitution on chemical identity cluster compounds.
The initial employment of the fluorescent bridging ligand N-naphthalidene-2-amino-5-chlorobenzoic acid (nacbH2) in metal cluster chemistry has led to new Ni12 (1) and Ni5 (2) clusters with wheel-like molecular-chain topologies, respectively. doubly-deprotonated nacb2– ligands were found adopt four different coordination modes within 1 2. nature also allowed unexpected organic transformations occur ferromagnetic emission behaviors emerge. combined work demonstrates ability some...
Abstract Heavy 5d elements, like osmium, feature strong spin‐orbit interactions which are at the origin of exotic physical behaviors. Revealing full potential of, for example, novel osmium oxide materials (“osmates”) is however contingent upon a detailed understanding local single‐ion properties. Herein, two molecular osmate analogues, [OsF 6 ] 2− and − , reported as model systems Os 4+ 5+ centers found in oxides. Using X‐ray absorption spectroscopy (XAS) magnetic circular dichroism (XMCD)...
The use of <italic>N</italic>-naphthalidene-2-amino-5-chlorobenzoic acid (nacbH<sub>2</sub>) has led to Ni<sub>5</sub> and Ni<sub>6</sub> clusters, as well an 1-D NiNa<sub>2</sub> polymer.
The reaction between Dy(NO3)3∙6H2O and the bulky Schiff base ligand, N-naphthalidene-2-amino-5-chlorobenzoic acid (nacbH2), in presence of organic NEt3 has led to crystallization structural, spectroscopic magnetic characterization a new heptanuclear [Dy7(OH)6(OMe)2(NO3)1.5(nacb)2(nacbH)6(MeOH)(H2O)2](NO3)1.5 (1) compound ~40% yield. Complex 1 unique hourglass-like metal topology, among all previously reported {Dy7} clusters, comprising two distorted {Dy4(μ3-OH)3(μ3-OMe)}8+ cubanes that share...
A family of four Ln(III) complexes has been synthesized with the general formula [Ln2(NO3)4(L)2(S)] (Ln = Gd, Tb, Er, and S H2O; 1, 2 4, respectively/Ln Dy, MeOH, complex 3), where HL is flexible ditopic ligand N’-(1-(pyridin-2-yl)ethylidene)pyridine-2-carbohydrazide. The structures isostructural MeOH/H2O solvates these were determined by single-crystal X-ray diffraction. two LnIII ions are doubly bridged deprotonated oxygen atoms “head-to-head” 2.21011 (Harris notation) L¯ ligands, forming...
Background: The chemistry of nickel(II) clusters continues to attract the intense interest many inorganic groups around world for a variety reasons, including its relevance Molecular Magnetism. Objective: primary objective this study was employ polydentate Schiff base Nsalicylidene- 4-chloro-o-aminophenol in carboxylate synthesis coordination clusters. Methods: influence synthetic parameters on product identity investigated. solid-state structures complexes were determined by single-crystal...
The self-assembly reaction between NiI2, benzoic acid (PhCO2H) and the Schiff base chelate, N-naphthalidene-2-amino-5-chlorobenzoic (nacbH2), in presence of organic triethylamine (NEt3), has resulted isolation structural, spectroscopic, physicochemical characterization dodecanuclear [Ni12I2(OH)6(O2CPh)5(nacb)5(H2O)4(MeCN)4]I (1) cluster compound ~30% yield. Complex 1 a cage-like conformation, comprising twelve distorted, octahedral NiII ions that are bridged by five μ3-OH−, one μ-OH−, an I−...