A5010008684- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Metal-Catalyzed Oxygenation Mechanisms
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Crystal structures of chemical compounds
- Synthesis and biological activity
- Synthesis and Characterization of Heterocyclic Compounds
- Porphyrin and Phthalocyanine Chemistry
- Lanthanide and Transition Metal Complexes
- Synthesis and Reactions of Organic Compounds
- Metalloenzymes and iron-sulfur proteins
- Metal-Organic Frameworks: Synthesis and Applications
- Chemical Synthesis and Analysis
- Synthesis and Biological Evaluation
- Liquid Crystal Research Advancements
- Organic Light-Emitting Diodes Research
- Organometallic Complex Synthesis and Catalysis
- DNA and Nucleic Acid Chemistry
- Multicomponent Synthesis of Heterocycles
- Phenothiazines and Benzothiazines Synthesis and Activities
- Asymmetric Synthesis and Catalysis
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Click Chemistry and Applications
Universidade Federal de Santa Catarina
2015-2024
Polydoro Ernani de São Thiago University Hospital
2013-2024
Universidade do Estado de Santa Catarina
2023
Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
2015-2020
Universidade Federal de Santa Maria
1994-2016
Technical University of Darmstadt
2008
Universidade de São Paulo
2007
Universidade Federal de Minas Gerais
2004-2007
University of California, Santa Barbara
2007
The University of Queensland
2007
The catecholase activity of a series dicopper(II) complexes containing different numbers phenol groups coordinated to the metal centers was studied identify functional as well structural models for type III copper enzymes tyrosinase and catechol oxidase. syntheses characterization [Cu2(H2bbppnol)(μ-OAc)(H2O)2]Cl2·2H2O (1) [Cu2(Hbtppnol)(μ-OAc)](ClO4)2 (2) were previously reported by us (Inorg. Chim. Acta 1998, 281, 111−115; Inorg. Chem. Commun. 1999, 2, 334−337), complex...
Presented in this Communication are the structure, physicochemical properties, and catalytic promiscuity of a new dinuclear CuII(μ-OH)CuII complex containing novel N,O-donor symmetric dinucleating ligand.
Herein, we report the synthesis and characterization, through elemental analysis, electronic spectroscopy, electrochemistry, potentiometric titration, electron paramagnetic resonance, magnetochemistry, of two dinuclear copper(II) complexes, using unsymmetrical ligands N′,N′,N-tris(2-pyridylmethyl)-N-(2-hydroxy-3,5-di-tert-butylbenzyl)-1,3-propanediamin-2-ol (L1) N′,N′-bis(2-pyridylmethyl)-N,N-(2-hydroxybenzyl)(2-hydroxy-3,5-di-tert-butylbenzyl)-1,3-propanediamin-2-ol (L2). The structures...
This communication reports the synthesis and X-ray structure of first mixed-valence FeIIIZnII complex containing FeIII(μ-OH)ZnII structural unit. Based on structure, physicochemical solution studies, catalytic properties toward hydrolysis diester 2,4-bis(dinitrophenyl)phosphate (BDNPP), it is proposed that 1 employs a hydrolytic mechanism similar to for red kidney bean purple acid phosphatase, including nucleophilic attack by terminal, FeIII-bound hydroxide concomitant release...
From the reaction between a dinuclear paddle-wheel carboxylate, namely [Cu2mu-(O2CCH2C4H3S)4] (1), and flexible ligand 1,3-bis(4-pyridyl)propane (BPP) neutral 2-D coordination polymer [[Cu2(O2CCH2C4H3S)4mu-(BPP)2]]n (2) was obtained. Compounds 1 2 were characterized by means of elemental analysis, thermal analysis (TG/DSC), vibrational spectroscopy, electron paramagnetic resonance (EPR). The crystal structure reveals that each Cu(II) is coordinated two nitrogen atoms from different BPP...
Summary Antifungal and antimycotoxin properties of zinc (Zn) compounds were evaluated against toxigenic strains Fusarium graminearum , Penicillium citrinum Aspergillus flavus . In addition, was verified the activity these Zn‐compounds on conidia production, hyphae morphological alterations, mortality reactive oxygen species ( ROS ) production. The treatments utilised oxide nanoparticles (ZnO‐ NP s), (ZnO), sulphate (Zn SO 4 perchlorate (Zn(ClO 2 ). effect growth diameter fungal colony...
Purple acid phosphatases (PAPs) are a group of metallohydrolases that contain dinuclear FeIIIMII center (MII = Fe, Mn, Zn) in the active site and able to catalyze hydrolysis variety phosphoric esters. The complex [(H2O)FeIII(μ-OH)ZnII(L-H)](ClO4)2 (2) with ligand 2-[N-bis(2-pyridylmethyl)aminomethyl]-4-methyl-6-[N′-(2-pyridylmethyl)(2-hydroxybenzyl) aminomethyl]phenol (H2L-H) has recently been prepared is found closely mimic coordination environment FeIIIZnII red kidney bean PAP (Neves et...
We have developed a green and efficient protocol for the chalcogenation of bicyclic arenes by using I 2 /DMSO as catalytic system under solvent‐ metal‐free conditions. This allows access to several chalcogenated through C(sp )–H bond functionalization, in good excellent yields microwave irradiation or conventional heating.
The tridentate Schiff base [(2-(imidazol-4-yl)ethyl)(1-methylimidazol-2-yl)methyl)imine (HISMIMI) and its reduced form HISMIMA were synthesized characterized, as well their mononuclear cis-dihalo copper(II) complexes 1 2, respectively. In addition, the dinuclear [CuII(μ-OH)2CuII]2+ (3) (4) obtained from respectively, also isolated characterized by several physicochemical techniques, including magnetochemistry, electrochemistry, EPR UV−vis spectroscopies. crystal structures of 2 determined...
The new heterodinuclear complex [FeIIIZnII(BPBPMP)(OAc)2]ClO4 (1) with the unsymmetrical N5O2 donor ligand 2-bis[{(2-pyridylmethyl)-aminomethyl}-6-{(2-hydroxybenzyl)(2-pyridylmethyl)}-aminomethyl]-4-methylphenol (H2BPBPMP) has been synthesized and characterized by X-ray crystallography, which reveals that cation an FeIIIZnII(μ-phenoxo)-bis(μ-carboxylato) core. Solution studies of 1 indicate a pH-induced change bridging acetate occurs, formation active [(OH)FeIIIZnII(OH2)] species as highly...
The new heterodinuclear mixed valence complex [Fe(III)Mn(II)(BPBPMP)(OAc)(2)]ClO(4) (1) with the unsymmetrical N(5)O(2) donor ligand 2-bis[((2-pyridylmethyl)-aminomethyl)-6-((2-hydroxybenzyl)(2-pyridylmethyl))-aminomethyl]-4-methylphenol (H(2)BPBPMP) has been synthesized and characterized. Compound 1 crystallizes in monoclinic system, space group P2(1)/c, an Fe(III)Mn(II)(mu-phenoxo)-bis(mu-carboxylato) core. Two quasireversible electron transfers at -870 +440 mV versus Fc/Fc(+)...
The synthesis and structural, thermal, optical theoretical characterization of new tris[1,2,4]triazolo[1,3,5]triazines were performed to support their application as liquid crystals advanced materials.
The synthesis and photophysical evaluation of new chlorin derivatives are described. Diels–Alder reaction between protoporphyrin IX dimethyl ester substituted maleimides furnishes endo-adducts that completely prevent the self-aggregation chlorins. Fluorescence, resonant light scattering (RLS) 1H NMR experiments, as well X-ray crystallographic have demonstrated configurational arrangement synthesized chlorins π-stacking interactions macrocycles, thus indicating it is a nonaggregating...
Manganese carbonyl compounds can release CO when exposed to light, potentially becoming photochemically activated CO-releasing molecules (photoCORMs). Several studies have demonstrated the behavior in ground state irradiated with...