A5058515351- Flame retardant materials and properties
- Synthesis and characterization of novel inorganic/organometallic compounds
- Organometallic Complex Synthesis and Catalysis
- Metal complexes synthesis and properties
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced biosensing and bioanalysis techniques
- Electrochemical Analysis and Applications
- Thermal and Kinetic Analysis
- Asymmetric Hydrogenation and Catalysis
- Electrochemical sensors and biosensors
- Organophosphorus compounds synthesis
- Inorganic and Organometallic Chemistry
- Magnetism in coordination complexes
- Synthesis and properties of polymers
- Prosthetics and Rehabilitation Robotics
- Coordination Chemistry and Organometallics
- Synthesis and Properties of Aromatic Compounds
- Metal-Catalyzed Oxygenation Mechanisms
- Analytical Chemistry and Sensors
- Muscle activation and electromyography studies
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Crystallography and molecular interactions
- Block Copolymer Self-Assembly
- Cyclopropane Reaction Mechanisms
Universidad de Oviedo
2014-2024
Hospital Universitario Río Hortega
2019-2022
Complejo Hospitalario de Navarra
2018
Universidad de Murcia
2012-2017
Universidad de Extremadura
2016
University of Chile
2005
Universidad de Alcalá
2002-2005
Hospital Universitario Infanta Cristina
1992-2004
Instituto de Investigaciones Químicas y Ambientales de Barcelona
2001-2003
Universidad de Valladolid
1988-2003
The direct reaction of [NPCl2]n with the difunctional reagent 2,2'-dihydroxybiphenyl (HOC6H4C6H4OH) and K2CO3 in tetrahydrofuran gave soluble linear phosphazene high polymers instead expected cross-linked products. [N3P3Cl6] 1, 2, or 3 equiv HOC6H4C6H4OH acetone known spiro derivatives [N3P3Cl4(O2C12H8)], [N3P3Cl2(O2C12H8)2], [N3P3(O2C12H8)3] without formation bridging products, dichloro derivative reacted directly para-substituted phenols HOC6H4R to give new compounds...
The two-step mechanism for the transformation of an alkyne complex 1 into a vinylidene 3 could be confirmed by isolation intermediate 2a having pentacoordinated iridium. complexes and their Rh analogues are first square-planar vinylidenemetal (a, R = Ph; b, Me; c, H, R′ iPr).
Square-planar vinylidene rhodium complexes trans-[RhCl( = C=CHR)(PPr i 3 ) 2 ] (X-XII) are prepared either by isomerization of trans-[RhCl(RC≡CH)(PPr in hexane at 50 °C or elimination pyridine from RhHCl(C≡CR)(py)(PPr benzene room temperature. The Xray structural analysis XI (R CH reveals that the CI-Rh=C=C fragment is almost linear, and planes formed these atoms C3 (carbon atom substituent) P1 , P2 perpendicular to each other. Rh C bond length surprisingly short (177.5(6) pm) supports...
The precise determination of dose-effect curves and the combination effect drugs is crucial importance in development new therapies for most dreadful diseases. We have found that current implementations theory Chou et al. are not accurate enough some circumstances might lead to erroneous predictions synergistic or antagonistic behaviour. identified source inaccuracies fixed it thereby improving accuracy those methods. Here we explain main features our approach demonstrate its higher as...
Der Zweistufenmechanismus der Umwandlung eines Alkin‐Komplexes 1 in einen Vinyliden‐Komplex 3 konnte durch die Isolierung Zwischenstufe 2a mit pentakoordiniertem Iridium bewiesen werden. Die Komplexe und ihre Rh‐Analoga sind ersten quadratisch‐planaren Vinylidenmetall‐Komplexe überhaupt ( a : RPh; b RMe; c RH; R′ i Pr) magnified image .
Although size and charge effects in nanochannels have been previously approached for electrochemical immunosensing, as far we know, thorough studies on the effect of both antibody antibody/antigen immunocomplex charges at different pHs not deeply reported. In this context, present here an unprecedented study such parameters, applied also first time detection Alzheimer's disease (AD) biomarker. AD is currently based consuming expensive techniques, so that development alternative analytical...
A simple and convenient one-pot synthesis of THF solutions high molecular weight poly(dichlorophosphazene) [NPCl(2)](n), or the (15)N isotopomer [(15)NPCl(2)](n), starting directly from PCl(5) NH(4)Cl (15)NH(4)Cl in a solution 1,2,4-trichlorobenzene presence sulfamic acid calcium sulfate dihydrate, is described. The [NPCl(2)](n) THF, which are obtained free poly(tetrahydrofuran) by preparing them K(2)CO(3), can be reacted with phenols, biphenols, even HO-CH(2)CF(3) K(2)CO(3) Cs(2)CO(3) to...
The vibrational spectra of a new type phosphazene polymer, [NP(O2C12H8)]n (polyspirophosphazene), are discussed. were recorded for powders dispersed in KBr pellets and films prepared from different solvents. IR dominated by the modes main chain whereas Raman vibrations peripheral biphenyl groups. full width at half maximum (FWHM) band 1609 cm-1, corresponding to one CC stretching biphenyl, decreases with increase degree crystallinity polymer sample. © 1998 John Wiley & Sons, Ltd.
Magnetic nanoparticles have been largely proposed as means of technological tools due to its value in different fields, especially biomedicine. Herein, we present a robust, highly reproducible and low-cost method obtain superparamagnetic magnetite (MNP-II) about <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mn>15</mml:mn><mml:mo>±</mml:mo><mml:mn>5</mml:mn><mml:mtext> </mml:mtext><mml:mtext>nm</mml:mtext></mml:math> diameter by thermal decomposition [Fe(acac) 3 ]...
The improvement of food safety and the reduction loss waste require development new bioanalytical tools that provide chemical information about composition is great value for improving traceability extending shelf life food. Herein, a Cu-based metal-organic framework has been synthesized immobilized onto cellulose paper disks colorimetric fluorescent detection quantification biogenic amines in color nano changes from green to brown presence low amounts amine vapors. Also, fluorescence...
Chemical bonding in the cyclophosphazenes is studied from point of view quantum theory Atoms Molecules (AIM). To that end, HF/6-31G** ab initio calculations are done on a collection (NPX2)3 derivatives for wide set −X substituents, and its electron density, ρ(r⃗), pair ρ(2)(r⃗1,r⃗2), obtained analyzed. The (NP)3 ring geometry properties basically maintained along cyclotriphosphazenes. PN distance bond critical (electron Laplacian, etc.) lie between those XNPX3, formally double NP bond,...
Abstract The vinylidene rhodium complex C 5 H Rh( CH 2 )P i Pr 3 ( 1 ) reacts with 6 Cr(CO) upon UV irradiation and Mn(CO) THF at room temperature to give the heterometallic dinuclear compounds [C (P )Rh(μ‐CCH )(μ‐CO)Cr(CO)‐C ] 4 (μ‐CO)Mn(CO)C ), respectively. Treatment of HBF in ether leads, after metathetical exchange anion NH PF , salt μ‐ethylidyne cation )Rh(μ‐CCH )(μ‐CO)Mn(CO)C + (7). reactions Rh‐(CCHR)P : R = Me; Ph) Fe (CO) 9 complexes )Rh(μ‐CCHR)(μ‐CO)Fe(CO) 11 – 13 as main...
A novel lipoformulation was developed by encapsulating cationic (S^C)-cyclometallated gold(III) complex [Au(dppta)(N
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactivity of 1-alkynes at dimanganese carbonyl centers. Synthesis and structural characterization alkenyl-, alkenylidene-, alkynyl-, 5-oxo-2-furanylidene-bridged compoundsFrancisco J. Garcia Alonso, Victor Riera, Miguel A. Ruiz, Antonio Tiripicchio, Marisa Tiripicchio CamelliniCite this: Organometallics 1992, 11, 1, 370–386Publication Date (Print):January 1992Publication History Published online1 May 2002Published inissue 1 January...
Samples of poly(2,2'-dioxybiphenylphosphazene) were prepared according to procedures previously reported in the literature and submitted thermal degradation at temperatures between 100 200 °C during periods time ranging from 6 250 h. Experimental characterization parent polymer degraded samples was performed employing DSC double detector SEC techniques. Values Tg, molecular weight distributions averages, dimensions scaling laws coefficients thus obtained. THF solutions this 25 are below ϑ...
Magnetic beads (MBs) have been notably used as platforms in biosensing thanks to their magnetic behavior they allow simplify purification and separation by preconcentrating the sample also minimize matrix effects, what facilitates analysis of real samples. Even though it exists a variety commercially available ones, there is still great interest develop alternative MBs with improved performance. In this work, we propose synthesis novel, reliable low-cost colloidal assembly zinc doped...