A5062116504- Oxidative Organic Chemistry Reactions
- Catalysis and Oxidation Reactions
- Vanadium and Halogenation Chemistry
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Catalytic Processes in Materials Science
- Metal-Catalyzed Oxygenation Mechanisms
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- Mesoporous Materials and Catalysis
- Metal complexes synthesis and properties
- Magnetism in coordination complexes
- Catalysis and Hydrodesulfurization Studies
- Porphyrin and Phthalocyanine Chemistry
- Organometallic Complex Synthesis and Catalysis
- Crystallography and molecular interactions
- Chemistry and Stereochemistry Studies
- Inorganic and Organometallic Chemistry
- Analytical chemistry methods development
- Zeolite Catalysis and Synthesis
- Luminescence Properties of Advanced Materials
- Synthetic Organic Chemistry Methods
- Water Quality and Pollution Assessment
University of Trás-os-Montes and Alto Douro
2010-2018
University of Lisbon
2018
Rede de Química e Tecnologia
2015
Instituto Superior Técnico
2005-2012
Indian Institute of Technology Kanpur
2002-2005
Reactions between CuCl2 and the functionalized scorpionate 2,2,2-tris(1-pyrazolyl)ethanol HOCH2C(pz)31 (pz = pyrazolyl) or 2,2,2-tris(1-pyrazolyl)ethyl methanesulfonate CH3SO2OCH2C(pz)32 yield corresponding water soluble CuII complexes [CuCl2{HOCH2C(pz)3}] 3 [CuCl2{CH3SO2OCH2C(pz)3}]24. In ligand shows typical N,N,N-coordination mode, whereas in dinuclear complex 4 it binds metal as a bidentate species. Compounds 1-4 have been characterized by IR, far-IR, elemental analysis (for 2-4) single...
The V-scorpionate vanadium complexes [VCl 3 {HC(pz) }] (pz = pyrazolyl) and {SO C(pz) catalyze cyclohexane oxidation with dioxygen, to cyclohexanol (the main product) cyclohexanone, under solvent-free conditions. provides the best activity (13 % conversion into ketone alcohol, high selectivity, at O 2 pressure of 15 atm, 140 ºC, 18 h reaction time). is further promoted (to conversion) by pyrazinecarboxylic acid (PCA). use C- or O-radical traps supports involvement a free-radical mechanism....
Single-walled carbon nanotubes (SWNTs) with Ni/Co have been prepared using an arc discharge technique and Ni/Co–carbon composite rods in inert atmosphere were surface modified 3-aminophenyl trimethoxysilane. These NH2-functionalized magnetic used as a novel support for Pd(II) Pt(II) pincer complexes immobilized nano-catalysts. The morphology of the catalysts characterized by IR, EPR, SEM, TGA, TEM, XRD, AAS EDS analysis. nano-catalysts tested on industrially important cyclohexane (Cy-hx)...
Tri-pyrazolyl methane europium complex, [Eu{HC(pz)<sub>3</sub>}(H<sub>2</sub>O)<sub>6</sub>]Cl<sub>3</sub> with PMMA gel, PVA gel and HMS-PVA, have been synthesized checked for unit mass luminescence emission lifetime application.
The ethylthio alkane ligands i.e. di(ethylthio)ethane, I, and di(ethylthio)propane, II, have been used for the synthesis of Pd(II) complexes. These complexes were covalently anchored to modified MCM-41 matrix as supported hybrid catalysts (MCM-41/I Pd–I MCM-41/II Pd–II). Remarkable catalytic effects observed when these act in n-hexane n-heptane reformation reactions presence H2. Catalyst provided high TONs 2325 with 91% selectivity 2145 88% under optimized relatively mild conditions. A...
A series of derivative C-scorpionate rhenium complexes, i.e., [ReCl2{NNC(O)C6H5}(Hpz)(PPh3)2] (A) (where Hpz is pyrazole), [ReCl2{NNC(O)C6H5}(Hpz)2(PPh3)] (B), [ReClF{NNC(O)C6H5}(Hpz)2(PPh3)] (C), and their precursor [ReOCl3(PPh3)2] (D), immobilized on 3-aminopropyl-functionalized silica have been prepared used for neat O2 oxidation n-hexane n-heptane mainly to the corresponding alcohols and, in lower amounts, ketones. The supported catalyst C, with fluoro- diazenido-ligands, exhibits...