Barbara Modec、J.V. Brenčič、Jože Koller2004-03-30European Journal of Inorganic Chemistry
Abstract Solvothermal reactions between mononuclear halooxomolybdates( V ) and oxalic acid afforded smaller oligonuclear complexes with the oxalate ion engaged in different binding modes. The oxalate ion coordinates as a bidentate terminal ligand to each metal centre of the {Mo 2 O 4 } 2+ unit to form the anion of (Me…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsCarbon dioxide utilization in catalysis
Emilio Pardo、Kévin Bernot、Miguel Julve 等 10 位作者2004-03-30Inorganic Chemistry
Two new hexanuclear oxamatocopper(II) complexes 3 and 4 have been synthesized from the binuclear copper(II) complexes of the meta- and para-phenylenebis(oxamate) ligands, respectively. Complexes 3 and 4 possess an overall ladderlike structure made up of two oxamate-bridged linear trinuclear units ("rails") connected t…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryLanthanide and Transition Metal Complexes
M. A. M. Piah、Ahmad Darus、Azman Hassan2004-03-30OpenAlex
Polymeric insulators are widely used for high voltage outdoor insulating application due to their substantial advantages compared to the porcelain and glass insulators. Although polymer materials have been proven good, research on development of new polymer-based materials is still on going since the benefits of using…
High voltage insulation and dielectric phenomenaInfrastructure Maintenance and MonitoringThermal Analysis in Power Transmission
Francisco Trivinho‐Strixino、Ernesto C. Pereira、Sarita V. Mello 等 4 位作者2004-03-30Langmuir
Nanostructured films from two conducting polymers, poly(o-methoxyaniline) (POMA) and poly(3-thiopheneacetic acid) (PTAA), were fabricated with the layer-by-layer (LBL) technique. The electrochemical response of the LBL films differs from that of a POMA cast film, even in a potential range where PTAA is inactive. This…
Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsAnalytical Chemistry and Sensors
Takashi Yamamoto、Yasushi Umemura、Osamu Sato 等 4 位作者2004-03-30Chemistry Letters
Abstract Co–Fe Prussian blue thin films have been prepared by means of a modified Langmuir–Blodgett technique, in which the hybrid monolayer composed of amphiphiles and clay platelets plays a template role for the formation Co–Fe Prussian blue thin films. Photoinduced magnetization was observed in the thin films as ob…
Magnetic properties of thin filmsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Sudip K. Batabyal、C. Basu、Anindita Das 等 4 位作者2004-03-30Crystal Growth & Design
Silver selenide (Ag 2 Se) nanocrystals were synthesized solvothermally using a single source precursor silver selenite (Ag 2 SeO 3 ) in the presence of dimethyl formamide (DMF) in an autoclave. The effect of time and temperature on the crystalline and morphological behavior of the products was investigated. The intera…
Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films
Qingmin Ji、Rika Iwaura、Toshimi Shimizu2004-03-30Chemistry Letters
Abstract A tubular template self-assembled from secondary ammonium hydrochloride of a peptidic lipid was used for sol-gel transcription of tetraethoxysilane (TEOS). Very mild catalytic function of the terminal group enabled us to control the wall thickness of the resultant silica nanotubes within 4-nm precision, depen…
Photonic Crystals and ApplicationsMesoporous Materials and CatalysisPorphyrin and Phthalocyanine Chemistry
Xun Wang、Jing Zhuang、Jun Chen 等 5 位作者2004-03-30Angewandte Chemie
Einheitliche, thermisch stabile Silicatnanoröhren mit großer Oberfläche wurden hergestellt (siehe Bild). Erste Untersuchungen lassen vermuten, dass derartige Materialien großes Potenzial für Anwendungen in der Gasadsorption und -trennung sowie in der heterogenen Katalyse haben.
Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisAerogels and thermal insulation
J. Pedra、F. Córcoles、Luis Sainz 等 4 位作者2004-03-30IEEE Transactions on Power Delivery
This paper proposes a new saturated single-phase transformer model and a three-phase three-legged transformer model for their implementation in a harmonic load flow. The nonlinear magnetizing behavior of the transformer is represented in both models by a simple saturated reluctance function. The procedure for the nonl…
Power Quality and HarmonicsMagnetic Properties and ApplicationsNon-Destructive Testing Techniques
J.E. Diosa、R.A. Vargas、I. Albinsson 等 4 位作者2004-03-30physica status solidi (b)
Abstract The dispersion curves of the dielectric response of KH 2 PO 4 were obtained from 5 Hz to 13 MHz and over the temperature range 120–206 °C for both single crystal and polycrystalline samples. Both types of samples reveal dielectric relaxation at low frequency, for example around 10 4 Hz at 140 °C, which shifts…
Advanced Battery Materials and TechnologiesSolid-state spectroscopy and crystallographyChemical Synthesis and Characterization
Freek J. M. Hoeben、Laura M. Herz、Clément Daniel 等 11 位作者2004-03-30Angewandte Chemie
Ultraschneller Energietransfer in gemischten supramolekularen Stapeln monofunktionalisierter Oligo(phenylenvinylene) (MOPVs) in Lösung: Columnare MOPV3-MOPV4-Aggregate löschen die MOPV3-Fluoreszenz sehr effizient, was dafür spricht, dass der Energietransfer (ENT) innerhalb der supramolekularen Stapel vom kürzeren zum…
Organic Electronics and PhotovoltaicsPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials
M. Jupa、Guido Kickelbick、Ulrich Schubert2004-03-30European Journal of Inorganic Chemistry
Abstract Upon reaction of titanium propoxide and yttrium 2‐methoxyethoxide with a sevenfold excess of methacrylic acid, three different mixed‐metal clusters were obtained, depending on the titanium to yttrium alkoxide ratio. Clusters of the type Ti 4 Y 2 (μ 3 ‐O) 4 (μ 2 ‐methacrylate) 12 (μ 1 ‐methacrylate) 2 L 2 (L =…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsSilicone and Siloxane Chemistry
P. Kubánek、Oliver Busch、Stuart Thomson 等 5 位作者2004-03-30Journal of Combinatorial Chemistry
FTIR spectroscopy in reflection mode combined with a focal plane array (FPA) detector was employed for high-throughput screening of activity of catalysts in n-pentane hydroisomerization. The reactor system was evaluated using reference catalysts Pt-MOR and gamma-alumina of known catalytic activity. By using the reflec…
Catalytic Processes in Materials ScienceInnovative Microfluidic and Catalytic Techniques InnovationMachine Learning in Materials Science
Daniele Ugues、Stefania Specchia、Guido Saracco2004-03-30Industrial & Engineering Chemistry Research
New catalytic FeCrAlloy premixed fiber burners for natural gas combustion in domestic applications were developed according to an accurate microstructural design consisting of subsequent optimized steps: (i) optimal preoxidation of the FeCrAlloy fiber mat so as to develop the best possible Al 2 O 3 layer for simultane…
Glass properties and applicationsHigh-Temperature Coating BehaviorsFlame retardant materials and properties
Hiroshi Ogata、Takamitsu Fukuda、Katsunori Nakai 等 7 位作者2004-03-30European Journal of Inorganic Chemistry
Abstract Electronic absorption, magnetic circular dichroism (MCD), IR spectra, and cyclic and differential pulse voltammograms of metal‐free and copper monoaza‐ and opposite diazaporphyrins are reported, together with molecular orbital (MO) calculations using the density functional theory (DFT) method. Introduction of…
Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies
Н. Г. Бебенин、Р. И. Зайнуллина、V. V. Mashkautsan 等 5 位作者2004-03-30Physical Review B
We report results of integrated study of resistivity, magnetoresistance, Hall effect, thermopower, and magnetothermopower in ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ single crystals with $x=0.15,0.20,0.25.$ The focus is on the vicinity of the Curie temperature. It is shown that near ${T}_{…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics
Jochen Autschbach、Boris Le Guennic2004-03-30Chemistry - A European Journal
The 295Pt and 205Tl NMR chemical shifts of the complexes [(NC)5Pt-Tl(CN)n]n- n=0-3, and of the related system [(NC)5Pt--Tl--Pt(CN)5]3- have been computationally investigated. It is demonstrated that based on relativistically optimized geometries, by applying an explicit first solvation shell, an additional implicit so…
Advanced Chemical Physics StudiesMagnetism in coordination complexesAdvanced NMR Techniques and Applications
Abhik Ghosh2004-03-30Angewandte Chemie
Abstract Die Pyrrol‐Aldehyd‐Cyclokondensation gilt seit über einem halben Jahrhundert als die klassische Eintopfsynthese symmetrischer Porphyrine, lieferte aber auch viele nichtporphyrinartige Makrocyclen wie “N‐invertierte” Porphyrine, Corrole, Sapphyrine und expandierte Porphyrine. Sie erwies sich somit als vielseit…
Supramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms
Fumiaki Amano、Tsunehiro Tanaka、Takuzo Funabiki2004-03-30Langmuir
A silica-supported, lowly loaded vanadium oxide (V2O5/SiO2) photocatalyst promotes the photocatalytic epoxidation of propene with O2 at steady state in a flow reactor system. Very little deep oxidation of propene into CO2 takes place over V2O5/SiO2, in contrast to the results obtained over a TiO2 photocatalyst in whic…
Catalytic Processes in Materials SciencePolyoxometalates: Synthesis and ApplicationsCatalysis and Oxidation Reactions
Takashi Kato、Toru Matsuoka、Masayuki Nishii 等 8 位作者2004-03-30Angewandte Chemie
Helicale selbstorganisierte Säulen bilden supramolekulare chirale kubische und columnare flüssigkristalline Phasen (siehe Bild). Wasserstoffverbrückte Scheiben aus Folsäurederivaten, mit Oligo(glutaminsäure)-Domänen und lipophilen Alkylketten, ergeben durch Komplexierung mit nichtchiralen Ionen selbstorganisierte chir…
Mesoporous Materials and CatalysisPorphyrin and Phthalocyanine ChemistrySupramolecular Self-Assembly in Materials