Materials Literature
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Evaluation of Surface Complementarity, Hydrogen bonding, and Electrostatic interaction in molecular Recognition (ESCHER) is a new docking procedure consisting of three modules that work in series. The first module evaluates the geometric complementarity and produces a set of rough solutions for the docking problem. Th…
The structural and physical properties of layered cuprates of a $R{\mathrm{CuO}}_{2}$ delafossite structure have been investigated for various rare-earth elements $R:$ Y, La, Pr, Nd, Sm, and Eu. An oxygen-rich delafossite-derived phase, $R{\mathrm{CuO}}_{2+\mathrm{\ensuremath{\delta}}}$ $(\ensuremath{\delta}>~0.5),…
Sodium tetraphenylboron (NaBPh4) can extract both exchangeable K+ and nonexchangeable K+ held in the interlayer of phyllosilicate minerals in soils and is a potential soil test method for plant-available K+. Eleven midwestern soils were used to (i) compare the ability of various kinetic equations to model nonexchangea…
The phase diagram of the pseudobinary Al 4 C 3 ‐AlN system was predicted using thermodynamic models. It was combined with previous thermodynamic descriptions of the pseudobinary Al4C3‐Al 2 O 3 and AlN‐Al 2 O 3 systems, and then thermodynamic properties of the pseudoternary Al 4 C 3 ‐AlN‐Al 2 O 3 system were assessed b…
The hyperthermophilic archaeon Pyrococcus furiosus produces an extracellular, glycosylated hyperthermostable subtilisin-like serine protease, termed pyrolysin (Voorhorst,W.G.B., Eggen,R.I.L., Geerling,A.C.M., Platteeuw,C., Siezen,R.J. and de Vos,W.M. (1996) J. Biol. Chem., 271, 20426-20431). Based on the pyrolysin cod…
A method has been developed to determine the diffusion coefficients of ferric ions in ferrous sulphate doped gels. A radiation induced edge was created in the gel, and two spin-echo sequences were used to acquire a pair of images of the gel at different points of time. For each of these image pairs, a longitudinal rel…
The layered manganite La 1.2 Sr 1.8 Mn 2 O 7 is important in that it displays giant negative magnetoresistance properties, and its study complements the growing body of what we know about the complex size−charge−temperature−magnetic field parameter space of the perovskites A III 1 - x A‘ II x MnO 3 . We report here th…
Electrospray mass spectrometry provides a rapid, convenient technique for characterizing and studying the chemistry of anionic metal sulfide thiolate clusters. Negative-ion electrospray mass spectra have been recorded for the thiophenolate-capped clusters [Me(4)N](4)[E(4)Cd(10)(SPh)(16)] (E = S, Se), [Me(4)N](4)[S(4)Z…
Other| August 01, 1997 Experimental study of Th-bearing LaPO4 (780 °C, 200 MPa); implications for monazite and actinide orthophosphate stability Renaud Podor; Renaud Podor Centre de Recherches sur la Geologie des Matieres Premieres Minerales et Energetiques, France Search for other works by this author on: GSW Google…
New polyconjugated oligomers—oligoaminophenols—have been prepared by the oxidative polycondensation reaction of aminophenols (APs) in the presence of oxidants (H2O2, NaOCl, KOH plus O2). It has been established that the reactivity of AP increases with the series of m- < o- < p-isomers in this reaction. The oligoaminop…
We report a systematic study of the electronic structure of the five metcars in the title using anion photoelectron spectroscopy. The electron affinities of the metcars are measured and are found to be metal dependent and increase from Ti 8 C 12 to Cr 8 C 12 . The electronic structures of Zr 8 C 12 and Nb 8 C 12 are f…
The transport of oxygen in a porous perovskite solid oxide fuel cell cathode is modeled by use of the principles of porous electrode modeling, by taking into account exchange kinetics at the gas/electrode interface, bulk diffusion of oxygen vacancies, surface diffusion of adsorbed oxygen atoms, and electrochemical kin…
The liquid phase hydrogenation of maleic anhydride and intermediates was investigated using copper-based and noble metal catalysts. The experiments were performed in a stirred tank slurry reactor in discontinuous as well as continuous operation. Copper chromites and noble metal catalysts were found to be suitable for…
There have been many experiments that have determined the wetting behavior of liquids on low-energy solid surfaces. These experiments show that, in general, the contact angle, theta, measured through the liquid, increases with increasing liquid-vapor surface tension, sigmalv. Surprisingly, in experiments with some suc…
The structural, vibrational, and electronic properties of liquid GeSe${}_{2}$ are investigated using ab initio molecular dynamics. The static structure factor $S(Q)$ and the pair-correlation functions of our model are in good agreement with experiment. We find many similarities between the topology of the liquid and t…
Exposure of luminescent n-type porous Si to gaseous molecular oxygen results in reversible quenching of the visible photoluminescence associated with this material. Steady-state and time-resolved photoluminescence quenching follow a dynamic Stern−Volmer model. From the Stern−Volmer analysis, the quenching rate constan…
Abstract Intercalates from an ordered halloysite with urea and potassium acetate were studied using Raman microscopy. The urea intercalate showed new Raman bands at 3387, 3410, 3497 and 3598 cm −1 which were attributed to the formation of a urea-Si 2 O 5 complex. New Raman bands were observed at 3585 and 3602 cm −1 fo…
The crystal structures and textures of a family of sequence-designed periodic polypeptides were investigated and analyzed using X-ray diffraction, vibrational spectroscopy, and cross-polarization magic angle spinning 13 C nuclear magnetic resonance. The repetitive amino acid sequences are described by −[(AG) x EG]−, w…
A composite of polyaniline (PANI) with both conducting and ferromagnetic functions was synthesized by a chemical method proposed by the authors. For the electrical properties, its room-temperature conductivity was measured to be about 10−1 S/cm when doped with 1.0M HCl, and it is independent of the preparation conditi…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTSolvothermal Co-reduction Route to the Nanocrystalline III−V Semiconductor InAsYa-Dong Li, Xiang-Feng Duan, Yi-Tai Qian, Li Yang, Ming-Rong Ji, and Cheng-Wei LiView Author Information Structure Research Laboratory and Department of Chemistry University of Science and T…