Shinya Higashimoto、Masaya Matsuoka、Hiromi Yamashita 等 8 位作者2000-10-13The Journal of Physical Chemistry B
The local structure of V oxide/ZSM-5 catalysts prepared by the solid-state reaction of the ZSM-5 zeolites having different Si/Al ratios have been investigated by means of in situ photoluminescence spectroscopy in combination with other spectroscopic techniques such as UV−Vis, solid-state NMR, and ESR. It was found tha…
Catalytic Processes in Materials ScienceTransition Metal Oxide NanomaterialsCatalysis and Oxidation Reactions
Israel Goldberg2000-10-13Chemistry - A European Journal
Crystal-engineering strategies have been systematically developed for the rational design by self-assembly of diverse metalloporphyrin molecular-sieve materials. Cooperative coordination and hydrogen bonding algorithms of molecular recognition proved particularly useful for this aim. The supramolecular concepts used i…
Porphyrin and Phthalocyanine ChemistrySupramolecular Chemistry and ComplexesSurface Chemistry and Catalysis
Jesús Cabrero、Nadia Ben Amor、Coen de Graaf 等 5 位作者2000-10-13The Journal of Physical Chemistry A
The structural dependence of the coupling constant in a series of [L 3 Cu(μ-C 2 O 4 )CuL 3 ] 2+ complexes is analyzed by means of ab initio difference-dedicated configuration interaction (DDCI2) calculations on the model (μ-oxalato)bis[triamminecopper(II)] cation, [(NH 3 ) 6 Cu 2 (μ-C 2 O 4 )] 2+, in which the nitroge…
Porphyrin and Phthalocyanine ChemistryMagnetism in coordination complexesLanthanide and Transition Metal Complexes
David Feller、Kenneth D. Jordan2000-10-13The Journal of Physical Chemistry A
Second-order Møller−Plesset perturbation theory has been used to calculate the interaction energy between a water molecule and acenes as large as C 96 H 24. The results of these calculations lead to an estimated value of −5.8 ± 0.4 kcal/mol for the electronic binding energy of a water molecule with single-layer graphi…
Carbon Nanotubes in CompositesAdvanced Chemical Physics StudiesGraphene research and applications
Frank Würthner、Christoph Thalacker、Armin Sautter 等 6 位作者2000-10-13Chemistry - A European Journal
A series of three perylene tetracarboxylic acid bisimide dyes 3 a–c bearing phenoxy substituents at the four bay positions of the perylene core were synthesized and their complexation behavior to complementary ditopic dialkyl melamines 8 a–c was investigated. Binding constants and Gibbs binding energies for the hydrog…
Photochemistry and Electron Transfer StudiesLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry
Hui Hu、Guang-Ming Zhang、Jia-Lin Zhu 等 4 位作者2000-10-13arXiv
We consider an effective mass model for an electron-hole pair in a simplified confinement potential, which is applicable to both a nanoscopic self-assembled semiconducting InAs ring and a quantum dot. The linear optical susceptibility, proportional to the absorption intensity of near-infrared transmission, is calculat…
Materials ScienceMesoscale and Nanoscale Physics
Dai Kawashima、Toshiaki Aihara、Yoshio Kobayashi 等 5 位作者2000-10-13Chemistry of Materials
A mesoporous carbon was prepared from a carbon/silica nanocomposite. The composite was obtained by mean of a sol−gel process using tetraethoxy silane (TEOS) in the presence of furfuryl alcohol (FA) as a carbon precursor and then the silica framework was removed from the composite by HF treatment. It was found that the…
Supercapacitor Materials and FabricationMesoporous Materials and CatalysisAerogels and thermal insulation
Yury Gogotsi、Joseph A. Libera、Н. П. Калашников 等 4 位作者2000-10-13Science
Polyhedral nano- and microstructures with shapes of faceted needles, rods, rings, barrels, and double-tipped pyramids, which we call graphite polyhedral crystals (GPCs), have been discovered. They were found in pores of glassy carbon. They have nanotube cores and graphite faces, and they can exhibit unusual sevenfold,…
Carbon Nanotubes in CompositesGraphene research and applicationsGraphite, nuclear technology, radiation studies
Victor I. Klimov、Alexander Mikhailovsky、Su Xu 等 8 位作者2000-10-13OpenAlex
The development of optical gain in chemically synthesized semiconductor nanoparticles (nanocrystal quantum dots) has been intensely studied as the first step toward nanocrystal quantum dot lasers. We examined the competing dynamical processes involved in optical amplification and lasing in nanocrystal quantum dots and…
Quantum Dots Synthesis And PropertiesSemiconductor Quantum Structures and DevicesChalcogenide Semiconductor Thin Films
Adam W. Freeman、Lysander A. J. Chrisstoffels、Jean M. J. Fréchet2000-10-12The Journal of Organic Chemistry
A novel parallel monomer combination approach to manipulating the architectural disposition of dendritic macromolecules is described. It harnesses the synthetic speed and power of the double-stage convergent growth approach and classical parallel synthesis to prepare diverse series of dendrimers that possess a predete…
Chemical Synthesis and AnalysisDendrimers and Hyperbranched PolymersRNA Interference and Gene Delivery
C.D. Abernethy、Marcus L. Cole、Cameron Jones2000-10-12Organometallics
Reaction of either LiInH 4 or [InH 3 (NMe 3 )] with the Arduengo-type carbene:CN(Mes)C 2 H 2 N(Mes), Mes = C 6 H 2 Me 3 -2,4,6, affords the indium trihydride complex [InH 3 {CN(Mes)C 2 H 2 N(Mes)}]. This compound displays a remarkable thermal stability (dec 115 °C). In solution the products of decomposition depend on…
Hydrogen Storage and MaterialsSynthesis and characterization of novel inorganic/organometallic compoundsInorganic Chemistry and Materials
C. Grimaldi、P. Ryser、S. Straessler2000-10-12arXiv
We present a simple picture of the gauge factor (GF) enhancement in highly heterogeneous materials such as thick-film resistors. We show that when the conducting phase is stiffer than the insulating one, the local strains within this latter are enhanced with respect to the averaged macroscopic strain. Within a simple…
Materials Sciencecond-mat.dis-nn
O. M. Braun、M. Peyrard2000-10-12arXiv
Molecular dynamics study of a thin (one to five layers) lubricant film between two substrates in moving contact are performed using Langevin equations with an external damping coefficient depending on distance and velocity of atoms relative the substrates, motivated by microscopic configurations. They show that the mi…
Materials Science
S. D. Kaim、N. P. Kovalenko、E. V. Vasiliu2000-10-12arXiv
On the basis of the perturbation expansion for electron gas energy in the third order to the electron-ion potential the pair and irreducible three-ion interaction potentials in metallic hydrogen are calculated. The irreducible potential of three-ion interaction has attractive nature at short interionic separation and…
Materials Science
A. L. Svistkov、A. V. Ilinykh2000-10-12arXiv
A possibility to use an integral operator for establishing the link between physical and structural levels of materials in modeling diffusion processes is considered. We show how to perform the transition from the stochastic description of motion of a system of points to the continuum description of diffusive profiles.
Materials Sciencecond-mat.stat-mech
Janis M. Brown、David B. Curliss、Richard A. Vaia2000-10-12Chemistry of Materials
The role of various quaternary ammonium-modified montmorillonites in epoxy/diamine nanocomposite formation is examined to further refine the criteria for selection of organic modifiers necessary to enable fabrication of thermoset resins containing nanoscale dispersions of inorganic phases. Utilization of a hydroxyl-su…
Polymer Nanocomposites and PropertiesSilicone and Siloxane ChemistryPolymer composites and self-healing
Raymond E. Schaak、Thomas E. Mallouk2000-10-12OpenAlex
Protonated Ruddlesden−Popper tantalates and titanotantalates H 2 [A n - 1 B n O 3 n +1 ] (A = Na, Ca, Sr, La; B = Ta, Ti) that have acidic interlayer protons were exfoliated using tetra( n -butyl)ammonium hydroxide (TBA + OH - ). H 2 CaNaTa 3 O 10 forms both single sheets and tubular “scrolls” when reacted to make TBA…
Layered Double Hydroxides Synthesis and ApplicationsPerovskite Materials and ApplicationsFerroelectric and Piezoelectric Materials
Shinae Jun、Sang Hoon Joo、Ryong Ryoo 等 8 位作者2000-10-12OpenAlex
TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields.
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisSupercapacitor Materials and Fabrication
Tina M. Hallis、Zongbao K. Zhao、Hung‐wen Liu2000-10-11Journal of the American Chemical Society
Tyvelose is a 3,6-dideoxyhexose found in the O -antigen of Yersinia pseudotuberculosis IVA and is the only member of this class of sugars to be produced directly from another 3,6-dideoxyhexose, paratose. The C-2 epimerization required for this conversion has been proposed to be catalyzed by CDP- d -tyvelose 2-epimeras…
Protein Structure and DynamicsErythrocyte Function and PathophysiologyEnzyme Structure and Function
R. A. Lampitt、Jonathan Crowther、J. P. S. Badyal2000-10-11The Journal of Physical Chemistry B
Cationic fluorosurfactants complexed to maleic anhydride plasma polymer layers readily undergo surface reconstruction in response to their local liquid environment. Repetitive alternation between oleophobic and hydrophilic behavior is observed.
Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesSurfactants and Colloidal Systems