V. K. Rastogi、Vaibhav Jain、R.A. Yadav 等 5 位作者2000-01-01Journal of Raman Spectroscopy
FT Raman study of 5-fluorouracil, an anticarcinogenic drug, was carried out. Ab initio and density functional computations of the vibrational spectrum, the molecular geometry, the atomic charges, the total energy, the zero point energy, the rotational constants, the room temperature entropy, (translational, rotational…
Metal complexes synthesis and propertiesNonlinear Optical Materials ResearchInorganic and Organometallic Chemistry
Anne Ponchel、A. D’Huysser、Carole Lamonier 等 4 位作者2000-01-01Physical Chemistry Chemical Physics
Mixed oxides based on nickel, cerium and aluminum, effective in the catalytic hydrogenation of unsaturated compounds, were prepared by a coprecipitation route and studied by XRD, TEM, XPS and ion sputtering techniques. The CeNixOy mixed oxides (0⩽x⩽1) can be described as a mixture of nickel oxide and ceria modified by…
Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesCatalysis and Oxidation Reactions
Ian C. Harding、Loraine S. Chant2000-01-01Geology
Research Article| March 01, 2000 Self-sedimented diatom mats as agents of exceptional fossil preservation in the Oligocene Florissant lake beds, Colorado, United States Ian C. Harding; Ian C. Harding 1School of Ocean and Earth Science, University of Southampton, European Way, Southampton SO14 3ZH, UK Search for other…
Geology and Paleoclimatology ResearchPaleontology and Stratigraphy of FossilsDiatoms and Algae Research
Shiping Yang、Xiao‐Ming Chen、Liang‐Nian Ji2000-01-01Journal of the Chemical Society Dalton Transactions
Five complexes, [Ag6(bmimen)5(MeCN)][CF3SO3]6·H2O 1, [Ag7(bmimen)6][ClO4]7·MeCN 2, [Ag2(bmimen)2][NO3]2· 0.5H2O 3, [Ag3(bmimpn)2][CF3SO3]34 and [Ag3(bmimpn)2]n[NO3]3n5, were obtained by self-assembly of AgX (X = CF3SO3−, ClO4− or NO3−) with bmimen and bmimpn (bmimen = 1,2-bis[(1-methyl-2-imidazolyl)methyleneamino]etha…
Metal-Organic Frameworks: Synthesis and ApplicationsMetal complexes synthesis and propertiesMagnetism in coordination complexes
Steven J. Rettig、Víctor Sánchez‐Mendieta、Alan Storr 等 5 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
The direct reaction between ferrocene and an excess of molten 4-azabenzimidazole yielded amber-green crystals of polybis(4-azabenzimidazolato)iron(II), 1. Single crystal X-ray diffraction studies revealed tetrahedrally coordinated iron ions linked by single imidazolate bridges and forming a 3-D single diamond-like (di…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Norifumi Nakamura、Ryōji Takahashi、Satoshi Sato 等 5 位作者2000-01-01Physical Chemistry Chemical Physics
Silica-supported nickel catalysts with both macropores and mesopores were prepared in an alkoxide-derived sol–gel process in the presence of poly(ethylene oxide) (PEO) with an average molecular weight of 100000. In this process, the interconnected macroporous morphology is formed when transitional structures of spinod…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisCatalysis and Oxidation Reactions
Yoshitaka Inaki、Hisao Yoshida、Kôichi Kimura 等 6 位作者2000-01-01Physical Chemistry Chemical Physics
The metathesis reaction of propene under photoirradiation was performed over two types of mesoporous silica materials, FSM-16 and MCM-41, and amorphous silica evacuated at high temperature. The activity increased with increasing evacuation temperature, and moreover, prehydration treatment before evacuation influenced…
Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisPolyoxometalates: Synthesis and Applications
Maurizio Mattesini、Samir F. Matar、J. Étourneau2000-01-01Journal of Materials Chemistry
Recently, Alves et al. have suggested a new orthorhombic lattice system as a possible form for the graphitic C3N4 model structure. For this new phase, some modifications in the electronic properties are expected with respect to the hexagonal variety previously proposed by Teter and Hemley. A theoretical investigation…
Advancements in Battery MaterialsGraphene research and applicationsBoron and Carbon Nanomaterials Research
D. Robson、Christina C. Long2000-01-01Clothing and Textiles Research Journal
Many textile properties have traditionally been assessed using subjective methods dependent upon one or more of the human senses. It is generally accepted that these methods can be unreliable, and the development of more reliable and consistent objective measurement systems is a key objective for textile scientists. I…
Textile materials and evaluationsColor Science and ApplicationsIndustrial Vision Systems and Defect Detection
R. Jaouhari、A. Benbachir、A. Guenbour 等 6 位作者2000-01-01Journal of The Electrochemical Society
Scaling of gold, bronze, and stainless steel was investigated in synthetic fresh and seawater. It is shown that the calcium carbonate precipitation rate increased from stainless steel, to bronze and then to gold whatever the composition of the scaling water. The morphology of the deposited scale depended on the substr…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsElectrodeposition and Electroless Coatings
Lorenzo Dall’Acqua、Isabella Nova、Luca Lietti 等 6 位作者2000-01-01Physical Chemistry Chemical Physics
MoO3/TiO2 catalysts prepared by impregnation of anatase with ammonium heptamolybdate have been investigated with the aim of understanding their redox chemistry and the coordination state of surface active species. Adsorption of ammonia has been followed by FTIR and by EPR on thermally treated, partially reduced sample…
Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesCatalysis and Oxidation Reactions
La�rcio Gomes Lage、Yoshio Kawano2000-01-01Journal of Applied Polymer Science
The kinetics of thermal degradation of polyurethanes (PUR) has been studied by means of high-resolution and constant heating rate thermogravimetry (TG), under nitrogen and synthetic air atmospheres. The high-resolution TG provided a way to increase resolution with decreasing the time of data acquisition. In this mode,…
Polymer crystallization and propertiesEnergetic Materials and CombustionThermal and Kinetic Analysis
J. Kossanyi、Driss Chahraoui2000-01-01International Journal of Photoenergy
An electron‐transfer reaction takes place in the ground state between phthalocyanines (as electron‐donors) and pyrylium cations (as electron‐acceptors) in polar solvents, reaction which leads to the phthalocyanine radical‐cations as evidenced by its absorption spectra identical to the one of the species formed by elec…
Porphyrin and Phthalocyanine Chemistry
Ikuo Nakazawa、Suda Sakae、Mitsutoshi Masuda 等 5 位作者2000-01-01Chemical Communications
Glucuronamide-based bolaamphiphiles are found to form a reversible, linear polymolecular array, via a boronate ester linkage attached to the 1,2-positions of the pyranose or furanose ring, upon complexation with an aromatic boronic acid-based homologue in aqueous solutions.
biodegradable polymer synthesis and propertiesConnective tissue disorders researchSupramolecular Self-Assembly in Materials
W. Clegg2000-01-01Journal of the Chemical Society Dalton Transactions
Recent years have seen a considerable development in the availability of single-crystal diffraction facilities with synchrotron radiation for use in non-biological crystallography, with access to several suitable beam-lines around the world. These can markedly extend the range of materials for which a full crystal str…
Crystallography and molecular interactionsEnzyme Structure and FunctionX-ray Diffraction in Crystallography
Rajesh Krishna、Maryse St‐Louis、Lawrence D. Mayer2000-01-01International Journal of Cancer
We have previously demonstrated that liposome encapsulation of doxorubicin (DOX) can alleviate adverse interactions with non-encapsulated DOX and the cyclosporine multidrug-resistant (MDR) modulator Valspodar. We have now investigated the behavior of different liposomal DOX formulations in MDA435LCC6/MDR-1 human breas…
Nanoparticle-Based Drug DeliveryDrug Transport and Resistance MechanismsNeonatal Health and Biochemistry
Yvonne Joseph、Mario Wühn、Arno Niklewski 等 7 位作者2000-01-01Physical Chemistry Chemical Physics
The adsorption of ethylbenzene and styrene on well ordered epitaxial iron oxide model catalyst films with different stoichiometries was investigated using near-edge X-ray absorption fine structure spectroscopy (NEXAFS). On the iron-terminated Fe3O4(111) and α-Fe2O3(0001) surfaces chemisorption of ethylbenzene and styr…
Iron oxide chemistry and applicationsElectron and X-Ray Spectroscopy TechniquesSurface and Thin Film Phenomena
U?K Mandal2000-01-01Polymer International
Carboxylated nitrile rubber (XNBR) neutralized by metal oxide forms an ionic elastomer (ionomer) due to formation of ionic clusters by the metal carboxylated salt. Cluster formation in carboxylated nitrile rubber by metal oxide, mainly zinc oxide (ZnO), has been studied by infrared analyses. Two modes of plasticizatio…
Polymer Nanocomposites and PropertiesDielectric materials and actuators
A. Gicquel、François Silva、Khaled Hassouni2000-01-01Journal of The Electrochemical Society
The goal of this study was to improve our understanding of diamond growth reactors. Direct relationships were set up between key parameters at a microscale level and diamond film characteristics. The coupled action of plasma variables, such as microwave power density, substrate temperature, and percentage of methane,…
Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchElectronic and Structural Properties of Oxides
Myung-Han Lee、Seong‐Geun Oh、Sung Yi 等 8 位作者2000-01-01Journal of The Electrochemical Society
Characterization of Eu‐Doped Y 2 O 3 Nanoparticles Prepared in Nonionic Reverse Microemulsions in Relation to Their Application for Field Emission Display, Lee, Myung Han, Oh, Seong Geun, Yi, Sung Chul, Seo, Do Seok, Hong, Jin Pyo, Kim, Chae Ok, Yoo, Young Kil, Yoo, Jae Soo
Luminescence Properties of Advanced MaterialsPerovskite Materials and ApplicationsPolyoxometalates: Synthesis and Applications