A5009815442- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Electrochemical Analysis and Applications
- Molecular Junctions and Nanostructures
- Electrochemical sensors and biosensors
- Magnetism in coordination complexes
- Mesoporous Materials and Catalysis
- Organometallic Complex Synthesis and Catalysis
- Metal-Catalyzed Oxygenation Mechanisms
- Catalysis and Oxidation Reactions
- Asymmetric Hydrogenation and Catalysis
- Catalytic Processes in Materials Science
- Nitric Oxide and Endothelin Effects
- Analytical Chemistry and Sensors
- Catalysis for Biomass Conversion
- CO2 Reduction Techniques and Catalysts
- Photochemistry and Electron Transfer Studies
- Chemical and Physical Properties in Aqueous Solutions
- Analytical Methods in Pharmaceuticals
- Electrocatalysts for Energy Conversion
- DNA and Nucleic Acid Chemistry
- Inorganic and Organometallic Chemistry
- Metalloenzymes and iron-sulfur proteins
- Axial and Atropisomeric Chirality Synthesis
Universidade Federal do Ceará
2005-2023
Universidade de Fortaleza
2017
Departamento de Ciência e Tecnologia
2012
Universidade Federal de São Carlos
2002-2004
Photorelease of CO and moderate binding to DNA did not seem be essential features for potent biological activities.
A new derivative of piperazine, 5-oxopiperazinium-3-sulfonate monohydrate, was produced from a simple synthetic route as result the nucleophilic addition to HSO3- bisulphite ion and attack water molecules on pyrazine molecules. The isolated material characterized by means NMR, mass spectrometry, infrared, X-ray diffraction.
A comparative study involving SAMs formed by [(CN)5M(pyS)]4− inorganic complexes (M = Fe, Ru; pyS 4-mercaptopyridine) on gold (MpySAu) has been performed. The characterization data for these suggests that the ruthenium complex exhibit a greater π-back-bonding effect more strongly stabilizes MpyC–S bond, thus anticipating its application as SAM would better enhance adlayer stability than iron complex. MpySAu electrodes were characterized SERS and electrochemical (LSV) techniques. ex situ...
Trans-[Ru(L)(NH3)4(L’)](PF6)n type complexes, where L = 4-cyanopyridine (CNpy), NCS-, CN-, and L’ CNpy, 1,4-dithiane (1,4-dt), 4-mercaptopyridine (pyS) thionicotinamide (tna), were synthesized characterized. SAMs on gold of the complexes containing sulfur studied by reductive desorption SERS spectroscopy. Depending nature L’, withdrawing capability CNpy ligand is strong enough to partially oxidize ruthenium atom and, as a consequence, delocalize s electronic density from trans located...
Several approaches have been developed focusing on the irreversible attachment of compounds to solid supports aiming avoid leaching and consequent loss activity recovering.Herein, we discuss characterization a silica-based material modified with cis-[RuCl(ISN)(dppb)(phen)] (RuphenISN), where ISN = isonicotinic acid, dppb bis(diphenylphosphine)butane, phen 1,10-phenanthroline.A stepwise strategy was adopted in which [RuCl 2 (dppb)(phen)] coordinated previously attached silica through an amide...