A5033542600- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Click Chemistry and Applications
- Dendrimers and Hyperbranched Polymers
- Cyclopropane Reaction Mechanisms
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Asymmetric Hydrogenation and Catalysis
- Catalytic C–H Functionalization Methods
- Organometallic Complex Synthesis and Catalysis
- RNA Interference and Gene Delivery
- Lanthanide and Transition Metal Complexes
- Chemical Synthesis and Analysis
- Metal complexes synthesis and properties
- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Organic Chemistry Cycloaddition Reactions
- Catalytic Cross-Coupling Reactions
- Synthesis and Catalytic Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Molecular Junctions and Nanostructures
- Fluorine in Organic Chemistry
- Asymmetric Synthesis and Catalysis
Universitat de València
2015-2024
Parc Científic de la Universitat de València
2015-2024
Cadi Ayyad University
2015-2024
Johannes Gutenberg University Mainz
2004-2008
Universitat Politècnica de València
2004-2007
Instituto de Tecnología Química
2004-2007
Tianjin University
2006
Texas A&M University
1999-2005
Utrecht University
2002-2004
University of Freiburg
2001-2002
Dendritic macromolecules with random branch-on-branch topology, termed hyperbranched polymers in the late 1980s, have a decided advantage over symmetrical dendrimers by virtue of typically being accessible one-step synthesis. Saving this synthetic effort once had an unfortunate consequence, though: hyperbranching polymerization used to result broad distribution molecular weights (that is, very high polydispersities, often Mw/Mn > 5). By contrast, typical dendrimer synthesis yields single...
The results of a comparative study hyperbranched, partially esterified polyglycerols with their linear polyglycerol analogues respect to molecular encapsulation and phase transfer are reported. Two hyperbranched samples weights 3000 8000 g/mol (Mw/Mn = 1.3), respectively, have been using palmitoyl chloride. same modification was applied the structurally analogous (3000 g/mol). A detailed UV-vis correlated viscosity experiments demonstrated that only core-shell structures form "nanocapsules",...
Abstract The intrinsic photoluminescence properties of hyperbranched polyethylenimines (PEIs) and their linear counterpart (LPEIs) have been studied in absence any classical fluorescent probes. comparison the inherent fluorescence emission between analogues demonstrates that polyamines are capable producing strong species having long excited lifetimes without need a tridimensional‐branched structure. creation inherently polymeric centers from polyethyleimines can be modulated by specific...
The copper(i) catalyzed azide-alkyne [3 + 2] cycloaddition (32CA) reaction and its uncatalyzed version have been studied for systematic understanding of this relevant organic transformation, using DFT calculations at the B3LYP/6-31G(d) (LANL2DZ Cu) computational levels. In absence a catalyst, two regioisomeric paths were studied, indicating that 32CA takes place through an asynchronous one-step mechanism with very low polar character. reactive channels leading to 1,4- 1,5-regisomer present...
Abstract The concept of “molecular magnetic sponges” was introduced for the first time in 1999 by creative imagination late Olivier Kahn. It refers to exotic spongelike behavior certain molecule‐based materials that undergo a dramatic change their properties upon reversible dehydration/rehydration processes. Here we report unique example manganese(II)–copper(II) mixed‐metal–organic framework formula [Na(H 2 O) 4 ] [Mn {Cu (mpba) (H } 3 ]⋅ 56.5 H O ( 1 ) (mpba= N,N′...
A novel sustainable hydrogel catalyst based on the reaction of sodium alginate naturally extracted from brown algae Laminaria digitata residue with copper(ii) was prepared as spherical beads, namely Cu(ii)-alginate (Cu(ii)-AHG). The morphology and structural characteristics these beads were elucidated by different techniques such SEM, EDX, BET, FTIR TGA analysis. Cu(ii)-AHG its dried form, (Cu(ii)-AD), are relatively uniform an average pore ranging 200 nm to more than 20 μm. These...
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTRole of Topology and Amphiphilicity for Guest Encapsulation in Functionalized Hyperbranched Poly(ethylenimine)sYu Chen, Zhong Shen, Lourdes Pastor-Pérez, Holger Frey, Salah-Eddine StiribaView Author Information Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55099 Germany, Instituto de Ciencia Molecular (ICMOL), Universidad Valencia, Av. Vicent Andrés Estelles s/n,...
ConspectusMetallosupramolecular complexes constitute an important advance in the emerging fields of molecular spintronics and quantum computation a useful platform development active components spintronic circuits computers for applications information processing storage. The external control chemical reactivity (electro- photochemical) physical properties (electronic magnetic) metallosupramolecular is current challenge supramolecular coordination chemistry, which lies at interface several...
In the search for establishing a clickable copper‐catalysed (3 + 2) Huisgen azide–alkyne cycloaddition (CuAAC) reaction under strict conditions, in particular terms of preventing presence copper particles/traces products and using an environmentally benign medium such as water, we describe here synthesis aminomethyl polystyrene‐supported copper(I) catalyst (Cu(I)‐AMPS) its characterization by means Fourier transform infrared energy‐dispersive X‐ray spectroscopies scanning electron...
Adsorption study of Basic Blue 41 dye onto activated carbon from Persea americana nuts with phosphoric acid activation was achieved. The effect operating parameters, the pH (2–12), adsorbent amount (5–30 mg/50 mL), concentration (25–125 mg/L), contact time (0–200 min) and temperature (298–323 K), on adsorption capacity examined. experimental isotherm data were analyzed using Langmuir Freundlich models, which showed that best fit achieved by model maximum monolayer at 625 mg/g. kinetic...
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTEncapsulation of Hydrophilic Pincer−Platinum(II) Complexes in Amphiphilic Hyperbranched Polyglycerol NanocapsulesMartijn Q. Slagt, Salah-Eddine Stiriba, Robertus J. M. Klein Gebbink, Holger Kautz, Frey, and Gerard van KotenView Author Information Department Metal-Mediated Synthesis, Debye Institute, Utrecht University Padualaan 8, NL-3584 CH Utrecht, The Netherlands; Institut für Makromolekulare Chemie und...
Cluster excision of polymeric {Mo3S7Cl4}n phases with chiral phosphane (+)-1,2-bis[(2R,5R)-2,5-(dimethylphospholan-1-yl)]ethane ((R,R)-Me-BPE) or its enantiomer ((S,S)-Me-BPE) yields the stereoselective formation trinuclear cluster complexes [Mo3S4{(R,R)-Me-BPE}3Cl3]+ ([(P)-1]+) and [Mo3S4{(S,S)-Me-BPE}3Cl3]+ ([(M)-1]+), respectively. These possess an incomplete cuboidal structure metal atoms defining equilateral triangle one capping three bridging sulfur atoms. The P M symbols refer to...
Abstract Novel multiarm star copolymers with poly(ϵ‐caprolactone) (PCL) as the arms and hyperbranched polyethylenimine (HPEI) core have been successfully prepared by tin(II) 2‐ethylhexanoate catalyzed ring‐opening polymerization of ϵ‐caprolactone (CL) HPEI used directly a macroinitiator. Not only primary but also secondary amine groups participate in initiating CL almost 100% initiation efficiency. The average degree PCL can be controlled feed ratio monomers to sites. Because polarity...