A5083176747- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Metal complexes synthesis and properties
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Inorganic and Organometallic Chemistry
- Thermal and Kinetic Analysis
- Catalysis and Oxidation Reactions
- Supramolecular Chemistry and Complexes
- Nanomaterials for catalytic reactions
- Crystallography and molecular interactions
- Catalytic Processes in Materials Science
- Metal-Catalyzed Oxygenation Mechanisms
- Advanced NMR Techniques and Applications
- Arsenic contamination and mitigation
- Luminescence Properties of Advanced Materials
- Adsorption and biosorption for pollutant removal
- Nanocluster Synthesis and Applications
Instituto Federal de Goiás
2014-2025
Royal Society of Chemistry
2024
Centre National pour la Recherche Scientifique et Technique (CNRST)
2024
Universidade Federal de Goiás
2014-2022
Parc Científic de la Universitat de València
2019
Universitat de València
2019
We report a new water-stable multivariate (MTV) metal–organic framework (MOF) prepared by combining two different oxamide-based metalloligands derived from the natural amino acids l-serine and l-methionine. This unique material features hexagonal channels decorated with types of flexible functional "arms" (−CH2OH −CH2CH2SCH3) capable enabling, synergistically, simultaneous efficient removal both inorganic (heavy metals such as Hg2+, Pb2+, Tl+) organic (dyes Pyronin Y, Auramine O, Brilliant...
Supramolecular coordination compounds (SCCs) represent the power of chemistry methodologies to self-assemble discrete architectures with targeted properties. SCCs are generally synthesized in solution, isolated fully coordinated metal atoms as structural nodes, thus severely limited metal-based catalysts. Metal–organic frameworks (MOFs) show unique features act chemical nanoreactors for situ synthesis and stabilization otherwise not accessible functional species. Here, we present...
Herein, we present the synthesis and characterization of a series isostructural lanthanide(III) compounds with N-(4-carboxyphenyl)oxamic acid (H3pcpa) ligand general formula as {[Ln2(Hpcpa)3(H2O)5]}n [Ln = Dy(III) 1, Ho(III) 2, Er(III) 3]. The structure 3 consists neutral zig–zag chains ions, Hpcpa2– ligands acting bridges in bidentate/monodentate coordination mode five water molecules achieving eight-coordination around two ions within repeating bis(carboxylate)-bridged dinuclear units...
Achieving fine control on the structure of metal–organic frameworks (MOFs) is mandatory to obtain target physical properties. Herein, we present how combination a metalloligand approach and postsynthetic method suitable highly useful synthetic strategy success this extremely difficult task. First, novel oxamato-based tetranuclear cobalt(III) compound with tetrahedron-shaped geometry used, for first time, as toward calcium(II) metal ions lead diamagnetic CaII–CoIII three-dimensional (3D) MOF...
Three heterobimetallic complexes of formula [Ca2Cu3(mpyba)2(2-apyma)(H2O)7]·8.3H2O (1), [Sr2Cu3(mpyba)2(2-apyma)(H2O)8]·11.6H2O (2) and [Sr4.5Cu4(mpyba)4(ox)(H2O)20]·8.5H2O (3) [H4mpyba = N,N'-2,6-pyridinebis(oxamic acid), 2-apyma 2-(6-aminopyridinyl)oxamate ox oxalate] have been synthesized structurally characterized. Complexes 1 2 are isostructural compounds, with tricopper(ii) units having mpyba its hydrolytic product (2-apyma) as ligands. They interlinked through strontium(ii) (1)...
The cobalt(II)-mediated self-assembly of the potentially tris(chelating) N,N'-2,2'-(4,4'-bithiazole)bis(oxamate) (dabtzox) ligand gives a new metal-organic supramolecular nanomagnet formula K6Co3(dabtzox)3·8H2O·MeOH (1) featuring unique linear triple-stranded trinuclear structure helicate type.
Four new complexes of formula [Fe(H 2 pcpa) (H O) ] (1), {[Mn(Hpcpa)(Hoxamic acid; bipy = 2,2′-bipyridine] have been synthesized and their structures determined by X-ray diffraction.The structure 1 consists mononuclear iron(II) units where each ion is six-coordinate two trans-positioned water molecules bidentate H pcpa -ligands building a distorted octahedral environment.2 3 consist neutral zigzag chains Mn II Zn ions respectively, the Hpcpa 2-groups acting as linkers in...
Four heterobimetallic compounds of formula [Ni(Me 6 trans [14]dieneN 4 )][Co(NCS) ] ( 1 and 2 ), )] [Co(NCS) ](ClO ) · H O 3 ](PF (Me = 5,7,7,12,14,14‐hexamethyl‐1,4,8,11‐tetraazacyclotetradeca‐4,11‐diene) have been synthesised structurally characterised. Their structures are formed square‐planar 2+ cations tetrahedral 2– anions. The variable‐temperature magnetic properties – mainly obey the zero‐field splitting effects D A ground‐state term pseudo‐tetrahedral anionic complex (2 is energy...
The efficient organization of discrete functional molecules into extended frameworks, while retaining their physical properties, is a mandatory requisite to move toward applications. Here we describe the validity metalloligand design strategy as versatile and powerful approach build up two-dimensional (2D) magnetic metal–organic framework (MOF) composed preformed antiferromagnetically coupled [3 × 3] Cu9II incomplete grids. In first stage, novel oxamato-based nonanuclear copper(II) complex...
New trinuclear Ni( ii ) complex exhibiting intratrimer both weak ferro- and antiferromagnetic interactions resulting from the strict orthogonality between magnetic orbitals, a combination of spin delocalisation polarisation mechanisms.
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