Sam‐Rok Keum、Ki Bong Lee、Peter M. Kazmaier 等 5 位作者1992-11-01Magnetic Resonance in Chemistry
Abstract The proton NMR assignments for a series of 12 thermo‐ and photochromic 1,3,3‐trimethylspiro(indoline‐2,2′‐benzopyrans) dyes is reported. All of the protons in the dye molecule were assigned through a combination of homonuclear decoupling experiments and correlation spectroscopy. The relative stereochemistry o…
Photochromic and Fluorescence ChemistrySynthesis of Indole DerivativesSynthesis of Organic Compounds
Joseph Manna、Steven J. Geib、Michael D. Hopkins1992-11-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT.pi.-Conjugated metallabutadiyne complexes: synthesis, structure, and bondingJoseph Manna, Steven J. Geib, and Michael D. HopkinsCite this: J. Am. Chem. Soc. 1992, 114, 23, 9199–9200Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Publis…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesSynthesis and characterization of novel inorganic/organometallic compounds
J. Henderson、Zoheir Sabeur1992-11-01The Journal of Chemical Physics
Analytic asymptotic analysis and finite element numerical procedures are used to elucidate the mathematical reasons for the appearance of infinite-range oscillatory solutions to certain integral equation theories of wall–fluid interfacial structure and liquid state radial distribution functions. The results contribute…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesSurfactants and Colloidal Systems
Frank Hilbrig、C.G. Michel、Gary L. Haller1992-11-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA XANES-TPR study of platinum-rhenium/alumina catalystsFrank Hilbrig, Chris Michel, and Gary L. HallerCite this: J. Phys. Chem. 1992, 96, 24, 9893–9899Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November 1992http…
Catalytic Processes in Materials Science
Flaviano García‐Alvarado、Jean‐Marie Tarascon、B. J. Wilkens1992-11-01Journal of The Electrochemical Society
The electrochemical properties of the high temperature three‐dimensional and layered phases are reported. Copper can be partially or completely removed from these compounds at room temperature by means of strong oxidizing agents. Upon removal of the copper several new compounds with copper content below the high tempe…
Transition Metal Oxide NanomaterialsPolyoxometalates: Synthesis and ApplicationsCatalysis and Oxidation Reactions
Toru Ogawa、Kousaku Fukuda、Satoru Kashimura 等 9 位作者1992-11-01Journal of the American Ceramic Society
The ZrC‐coated UO 2 particle is a promising fuel for high‐temperature gas‐cooled reactors. Particle fuels with multiple layers of pyrolytic carbon and ZrC have been irratiation‐tested to a maximum fast‐neutron fluence exceeding 2 × 10 25 /m 2 ( E < 29 fJ). In‐reactor fission‐gas release measured at a burnup of 1.5…
Fusion materials and technologiesNuclear reactor physics and engineeringNuclear Materials and Properties
I. Greener Donhowe、O. Fennema1992-11-01Journal of the American Oil Chemists Society
The water vapor (WV) permeance of lipid and lipid‐hydrocolloid films exposed to relative humidity (RH) gradients of 100–0%, 100–50%, 100–65% and 100–80% RH were determined. The lipids used were beeswax (BW) or a blend of BW and acetylated monoglycerides (AG). Hydrocolloids used were methylcellulose, carboxymethylcellu…
Nanocomposite Films for Food PackagingTextile materials and evaluationsMicroencapsulation and Drying Processes
Peter J. Hall、D. M. Titterington1992-11-01Technometrics
An alternative procedure is developed to the smoothed linear fitting method of McDonald and Owen. The procedure is based on the detection of discontinuities by comparing, at any given position, three smooth fits. Diagnostics are used to detect discontinuities in the regression function itself (edge detection) or in it…
Electron and X-Ray Spectroscopy TechniquesIndustrial Vision Systems and Defect DetectionImage and Object Detection Techniques
Marcetta Y. Darensbourg、Ivan Font、Daniel K. Mills 等 5 位作者1992-11-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVariable modes of nickel(II) coordination with macrocyclic ligands based on 1,5-bis(2-mercaptoethyl)-1,5-diazacyclooctane (BME-DACO)Marcetta Y. Darensbourg, Ivan Font, Daniel K. Mills, Magdalena Pala, and Joseph H. ReibenspiesCite this: Inorg. Chem. 1992, 31, 24, 4965–4971Pu…
Metal complexes synthesis and propertiesMagnetism in coordination complexesFree Radicals and Antioxidants
D. M. Tennant、T. L. Koch、P. P. Mulgrew 等 6 位作者1992-11-01Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena
Direct write e-beam lithography and reactive ion etching was used to fabricate square-wave gratings in quartz substrates which serve as pure phase masks in the near-field holographic printing of gratings. This method of fabricating these masks extends the flexibility of the printing technique by allowing both abrupt p…
Photonic and Optical DevicesOptical Coatings and GratingsNear-Field Optical Microscopy
Tohru Yamada、Kiyomi Imagawa、Teruaki Mukaiyama1992-11-01Chemistry Letters
Abstract In the presence of a catalytic amount of bis(dipivaloylmethanato)manganese(II) (= Mn(dpm)2), various cholesterol derivatives are smoothly converted into the corresponding β-epoxides in good to high yields with combined use of molecular oxygen and isobutyraldehyde. These stereoselectivities are the reversal of…
Porphyrin and Phthalocyanine ChemistryOrganic Chemistry Cycloaddition Reactions
Laurent J. Michot、Thomas J. Pinnavaia1992-11-01Chemistry of Materials
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImproved synthesis of alumina-pillared montmorillonite by surfactant modificationLaurent J. Michot and Thomas J. PinnavaiaCite this: Chem. Mater. 1992, 4, 6, 1433–1437Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 N…
Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisClay minerals and soil interactions
Mercedes Marcos、José Luís Serrano、Teresa Sierra 等 4 位作者1992-11-01Angewandte Chemie International Edition in English
Cu2+ and VO2+ are the paramagnetic centers of the ferroelectric complexes ML2 that both display a S mesophase. The spontaneous polarization of these first paramagnetic ferroelectric liquid crystals is 23 and 20 nCcm−2, respectively.
Liquid Crystal Research AdvancementsSynthesis and Properties of Aromatic CompoundsMolecular spectroscopy and chirality
Martin T. Dove、A. P. Giddy、Volker Heine1992-11-01Ferroelectrics
It is commonly observed that displacive phase transitions, including ferroelectric phase transitions, can be accurately described by mean-field theory and hence Landau theory. In same cases the reasons why can be deduced by renormalisation group theory, but there are many other cases where the reasons are less clear.…
Glass properties and applicationsPhotorefractive and Nonlinear OpticsSolid-state spectroscopy and crystallography
C. S. C. Bose、S. Basak、Krishnan Rajeshwar1992-11-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemistry of poly(pyrrole chloride) films: a study of polymerization efficiency, ion transport during redox and doping level assay by electrochemical quartz crystal microgravimetry, pH and ion-selective electrode measurementsC. S. C. Bose, S. Basak, and K. RajeshwarCi…
Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors
Scolastica Serroni、Gianfranco Denti、Sebastiano Campagna 等 6 位作者1992-11-01Angewandte Chemie
An elektronische Schaltkreise erinnert das Bild rechts eher als an eine chemische Formel. Es symbolisiert jedoch einen Ru 22 ‐Komplex, wobei die Kreise für Metallzentren, die Sägezahnkurven für verbrückende und die Striche für terminale Liganden stehen. Der Ru 22 ‐komplex, der zur Klasse der Kaskadenverbindungen (Arbo…
Organometallic Complex Synthesis and CatalysisMetal complexes synthesis and propertiesDendrimers and Hyperbranched Polymers
Michel B. M. Mangion、J.Y. Cavaillé、J. Pérez1992-11-01Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties
A theory based on the concepts of quasi-punctual defects and hierarchically constrained molecular dynamics is extended to account for the effects of large stresses on the rate of elementary molecular motions. The extended theory provides a physical interpretation for the general features of the experimentally observed…
Carbon Nanotubes in CompositesPolymer crystallization and propertiesMaterial Dynamics and Properties
Shun Koizumi、Kenji Tadano、Yuji Tanaka 等 6 位作者1992-11-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDielectric relaxations of poly(fluoroalkyl methacrylates) and poly(fluoroalkyl .alpha.-fluoroacrylates)Shun Koizumi, Kenji Tadano, Yuji Tanaka, Tetsuo Shimidzu, Shoichi Kutsumizu, and Shinichi YanoCite this: Macromolecules 1992, 25, 24, 6563–6567Publication Date (Print):Nove…
Conducting polymers and applicationsAnalytical Chemistry and SensorsSynthesis and properties of polymers
Roderic P. Quirk、Jie Ren1992-11-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanistic studies of group transfer polymerization. Silyl group exchange studiesRoderic P. Quirk and Jie RenCite this: Macromolecules 1992, 25, 24, 6612–6620Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November…
Molecular Junctions and NanostructuresRadioactive element chemistry and processingLanthanide and Transition Metal Complexes
F.E. Heredia、S.M. Spearing、A.G. Evans 等 5 位作者1992-11-01Journal of the American Ceramic Society
The tensile properties of three carbon matrix composites reinforced with SiC (Nicalon) fibers (materials A, B, C) have been measured with and without notches. One of the three materials (material B) had a relatively low strength and exhibited notch brittleness. This material had both a high interface sliding stress an…
Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesFiber-reinforced polymer composites