A5034220480- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Hydrogen Storage and Materials
- Organoboron and organosilicon chemistry
- Crystal structures of chemical compounds
- Boron Compounds in Chemistry
- Synthesis and characterization of novel inorganic/organometallic compounds
- Boron and Carbon Nanomaterials Research
- Photochromic and Fluorescence Chemistry
- Molecular Sensors and Ion Detection
- Metal complexes synthesis and properties
- Coordination Chemistry and Organometallics
- Analytical Chemistry and Chromatography
- Molecular spectroscopy and chirality
- Solid-state spectroscopy and crystallography
- Chemical Thermodynamics and Molecular Structure
- Photoreceptor and optogenetics research
- Supramolecular Chemistry and Complexes
- Molecular Spectroscopy and Structure
- Metal-Organic Frameworks: Synthesis and Applications
- High-pressure geophysics and materials
- Organometallic Compounds Synthesis and Characterization
- Luminescence and Fluorescent Materials
- Magnetism in coordination complexes
University of Namur
2016-2025
UCLouvain
2013-2024
Namur Institute of Structured Matter
2020-2024
Namur Research Institute for Life Sciences
2020-2022
KU Leuven
2021
Laboratoire de Chimie Théorique
2019-2020
Division of Chemistry
2017-2020
University of Zagreb
2018
Greek Rescue Team
2018
Laboratoire de Chimie Physique
2018
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTSynthesis of a Bimetallic Dodecaborate LiNaB12H12 with Outstanding Superionic ConductivityLiqing He†, Hai-Wen Li*‡§, Hironori Nakajima†§, Nikolay Tumanov⊥, Yaroslav Filinchuk*⊥, Son-Jong Hwang#, Manish Sharma∥, Hans Hagemann∥, and Etsuo Akiba†‡§View Author Information† ‡ § †Department Mechanical Engineering, ‡International Research Center for Hydrogen Energy, §WPI International Institute Carbon-Neutral Energy (WPI-I2CNER), Kyushu University,...
Bending the planar trigonal boron center of triphenylborane by connecting its aryl rings with carbon or phosphorus linkers gave access to a series 9-boratriptycene derivatives unprecedented structures and reactivities. NMR spectroscopy X-ray diffraction Lewis adducts these non-planar acids weak base revealed particularly strong covalent bond formation. The first adduct trivalent compounds Tf2 N- anion illustrates unrivaled acidity species. Increasing pyramidalization using cationic...
Nanoporous materials have attracted great attention for gas storage, but achieving high volumetric storage capacity remains a challenge. Here, by using neutron powder diffraction, adsorption, inelastic scattering and first-principles calculations, we investigate magnesium borohydride framework that has small pores partially negatively charged non-flat interior hydrogen nitrogen uptake. Hydrogen occupy distinctly different adsorption sites in the pores, with very limiting capacities of 2.33 H
A highly bent triarylborane, 9-boratriptycene, was generated in solution by selective protodeboronation of the corresponding tetra-aryl boron ate complex with strong Brønsted acid HNTf2 . The iptycene core confers enhanced Lewis acidity to making it unique terms structure and reactivity. We studied stereoelectronic properties 9-boratriptycene quantifying its association small N- O-centered bases, as well sterically hindered phosphines. resultant adducts exhibited structural, spectroscopic,...
Metal–organic frameworks (MOFs) have received great attention in recent years as potential adsorbents for CO2 capture due to their unique properties. However, the high cost and tedious synthesis procedures impede industrial application. A series of new CO2-philic oxalamide-functionalized MOFs been solvothermally synthesized: {[Zn3(μ8-OATA)1.5(H2O)2(DMF)]·5/2H2O·5DMF}n (Zn-OATA), {[NH2(CH3)2][Cd(μ4-HOATA)]·H2O·DMF}n (Cd-OATA), {[Co2(μ7-OATA)(H2O)(DMF)2]·2H2O·3DMF}n (Co-OATA) (H4OATA =...
Four new carboxylates complexes with general formula R2SnL2 and R3SnL, where R = n-butyl (1, 3), methyl (2, 4) L 4-Chlorophenoxyacetate, were synthesized in significant yields. FT-IR analysis revealed a chelating (1 2) bridging bidentate (3 coordination modes for the carboxylate ligand solid state which was further confirmed by single crystal X-ray of complex 4. The NMR data (1H, 13C 119Sn) higher number around tin center compared to R3SnL 4). A close matching observed between experimental...
The effect of pressure on L-alanine has been studied by X-ray powder diffraction (up to 12.3 GPa), single-crystal diffraction, Raman spectroscopy and optical microscopy ∼ 6 GPa). No structural phase transitions have observed. At 2 GPa the cell parameters a b become accidentally equal each other, but without change in space-group symmetry. Neither two reported others (to tetragonal at monoclinic 9 GPa) was changes were continuous up highest measured pressures cells remained orthorhombic. Some...
Three novel 1D, 2D and 3D coordination polymers were successfully isolated using nitrogen based 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine (BPymTz) 2,4,6-tris(2-pyrimidyl)-1,3,5-triazine (TPymT) ligands with Ag(I) ions. The formation of these supramolecular assemblies was templated through anion-π-system interactions.
Three manganese borohydride polymorphs are synthesized in solution and found to be structural analogues of three magnesium polymorphs.
Proline has been widely used for various cocrystallization applications, including pharmaceutical cocrystals. Combining enantiopure and racemic flurbiprofen proline, we discovered 18 new crystal structures. Liquid-assisted grinding proved highly efficient to explore all the variety of forms. A unique combination state-of-the-art characterization techniques, comprising variable temperature in situ X-ray diffraction ball-milling, along with other physicochemical methods density functional...
The rational design of a geometrically constrained boron Lewis superacid featuring exceptional structure and reactivity is disclosed. It enabled the formation non-classical electron deficient B-H-B type bonding, which was supported by spectroscopic structural parameters as well computational studies. Taming pyramidal acid electrophilicity through weak coordinating anion dissociation series highly challenging chemical transformations, such Csp2 -H Csp3 activation under frustrated pair regime...
In this paper, we identified a cocrystal conglomerate of mandelic acid using drug compound as coformer. We then developed chiral resolution process based on preferential cocrystallization. Several versions such were explored and optimized, leading to successful acid, evidencing the efficiency our system. Excellent enantiopurity (98–99%) was obtained with that can run for multiple cycles.
Synthesis and antiproliferative activities of Cu(<sc>ii</sc>) complexes with tridentate Schiff-base ligands containing pyridine 3,5-halogen substituted phenol moieties were investigated.
Here we present the anion binding and transport properties of a series calix[6]arenes decorated on their small rim with either halogen bond or hydrogen donating groups. We show that iodotriazole groups enable highly selective chloride nitrate anions, without protons hydroxide, at rates similar to those observed thiourea squaramide
The synthesis, properties and structural requirements for atropisomerism at the C−B bond in boron Lewis acids such as triarylboranes have been understudied so far. We report first series of atropisomeric constituted a naphthyl rotor dihydro‐9‐bora‐anthracenyl stator subunits, connected by stereogenic axis. Through systematic crystallographic, kinetic, photophysical quantum chemical studies, mechanisms, rates barriers diastereomerization enantiomerization were determined. orthogonal...
The synthesis, properties and structural requirements for atropisomerism at the C−B bond in boron Lewis acids such as triarylboranes have been understudied so far. We report first series of atropisomeric constituted a naphthyl rotor dihydro‐9‐bora‐anthracenyl stator subunits, connected by stereogenic axis. Through systematic crystallographic, kinetic, photophysical quantum chemical studies, mechanisms, rates barriers diastereomerization enantiomerization were determined. orthogonal...
Lipid bilayers are impermeable to ions, including copper cations. Copper is an essential trace element for life, present in the active site of various enzymes, whereas free detrimental inside cells. homeostasis thus finely controlled, involving Cu(I) transporting membrane proteins Ctr1 and ATP7A/B. Disruption has been reported as a potential anti-cancer strategy. With this objective, we have developed series lipophilic compounds with two coordinating (benz)imidazole groups that able function...
This work explores the synthesis and characterization of undoped ZnO, Ga-doped ZnO (Ga:ZnO), γ-Ga2O3 quasi-spherical nanoparticles their catalytic activity in Rhodamine B photodegradation under UV–visible light exposure. Gallium dopant incorporation into Ga:ZnO was confirmed by inductively coupled plasma optical emission spectroscopy (ICP-OES), Fourier transform infrared (FT-IR), powder X-ray diffraction (XRD), maintaining hexagonal wurtzite structure with an additional zinc gallium...
Controlling electronic population through chemical doping is one way to tip the balance between competing phases in materials with strong correlations. Vanadium dioxide exhibits a first-order phase transition at around 338 K high-temperature, tetragonal, metallic state (T) and low-temperature, monoclinic, insulating (M1), driven by electron-electron electron-lattice interactions. Intercalation of VO2 atomic hydrogen has been demonstrated, evidence that this suppresses transition. However,...
We compare the response of crystalline DL-cysteine to cooling and increasing pressure. The structure undergoes a low-temperature phase transition into an isosymmetric polymorph, DL-cysteine-II, with conformation zwitterion changing from gauche− gauche+. first pressure-induced at 0.1 GPa (the lowest pressure reported for in amino acid thus far) gives same polymorph. Further compression DL-cysteine-II proceeds differently on hydrostatic is preserved down 3 K, but transitions about 1.55 GPa,...
Structural strain and a first-order phase transition in the crystalline dl-cysteine on cooling reverse heating were followed by Raman spectroscopy X-ray diffraction. The is reversible has large hysteresis (over 100 K). temperature at which observed depends strongly cooling/heating rate. accompanied crystal fragmentation. low-temperature could be obtained not only as result of solid-state transformation situ polycrystalline sample (with strong preferred orientation, or without it, depending...