Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The electronic structure of the lutetium triple-decker phthalocyanine (Pc) trimer is studied by semiempirical quantum chemical calculation. The study employs a localized orbital (LO) basis set which is obtained by a transformation of the trimer's canonical MOs, such that the orbital populations on a certain ligand are…
The reactivity of the hydroperoxo complex [Co(CN)(5)OOH](3)(-) has been studied in aqueous solution. The complex undergoes acid-catalyzed aquation (k = 1.89(5) x 10(-)(2) s(-)(1), pK(a) = 5.21(4), T = 20 degrees C, I = 0.1 M). Assuming an I(d) mechanism, this allows the relative affinity for Co(III) to be deduced as H…
This paper describes the growth of lead selenide (PbSe) thin films on glass and on ITO-covered glass substrates at room temperature under normal pressure utilising the successive ionic layer adsorption and reaction (SILAR) technique. Aqueous precursor solutions, lead acetate complexed with triethanolamine and sodium s…
The photoelectrochemical properties of π-conjugated poly(3-hexylthiophene) films in aqueous solution are presented. Application of potential biases more negative than +0.3 V (SCE) to the polymer film immersed in an aqueous electrolyte gives rise to a depletion layer at the polymer/solution interface. Photoexcitation o…
The electric-field gradient of $^{111}\mathrm{In}$(EC${)}^{111}$Cd nuclei at cation sites in the delafossites ${\mathit{A}}^{+1}$${\mathit{B}}^{+3}$${\mathrm{O}}_{2}$ have been measured using perturbed angular correlation spectroscopy. The radioactive $^{111}\mathrm{In}$ tracers were introduced into the samples via io…
The influence of alloying levels in the range (in mass%) of 0.01-0.5 nitrogen and 0.2-10 manganese on pitting corrosion resistance has been investigated for austenitic stainless steels with a base composition (in mass%) of 20Cr-18Ni-4.5Mo. The beneficial effect of nitrogen alloying is confirmed, while the detrimental…
High-yield mullite (3Al 2 O 3 −2SiO 2 ) precursors consist of aluminosiloxanes synthesized from mixtures of aluminum and silicon alkoxides. Atomic level mixing of the aluminum and silicon oxides is demonstrated by the low-temperature conversion (<1000 °C) of the aluminosiloxanes to phase-pure mullite. The proper selec…
We devise a constraint algorithm that makes the angular velocity of the director of a liquid crystal a constant of motion. When the angular velocity is set equal to zero, a director based coordinate system becomes an inertial frame. This is a great advantage because most thermodynamic properties and time correlation f…
The first steps of silver clusters nucleation have been studied by pulse radiolysis in the presence of EDTA and CN - ligands. The successive rate constants and the transient absorption spectra corresponding to Ag 1 0 and Ag 2 + have been determined. It has been found that Ag 1 0 and Ag 2 + were complexed by the ligand…
Abstract Bengal Rose was succesfully encapsulated and liberated from a dendritic box. Bengal Rose@DAB‐ dendr ‐(NH‐ t ‐BOC‐L‐Phe) 64 was investigated with several different techniques such as ultraviolet, circular dichroism and fluorescence spectroscopy.
D. R. Boyd and N. D. Sharma, Chem. Soc. Rev., 1996, 25, 289 DOI: 10.1039/CS9962500289
A reaction generator in SOPHIA ( for reaction by ) generates all possible product structures by reconnections of free bonds obtained by cutting all bonds of a reaction site which is automatically perceived in the input reactantt structure and additions of atoms and/or atomic groups (AAG) to the free bonds. The reactio…
In a calcareous sinter precipitated from cold saline spring water at Shiowakka, Hokkaido, Japan, ikaite (CaCO3·6H2O) was found in winter, subsequent to the finding of monohydrocalcite with calcite in the previous summer. The formation of the ikaite was favored by low temperature, while that of the monohydrocalcite was…
Gold oxide films were prepared by reactive sputtering of pure gold in an oxygen plasma. These films were characterized by chemical and physical means to better understand the behavior of this metastable compound. Gold oxide, Au2O3, decomposes into the elements at 350 °C. It does not react with dry carbon dioxide but d…
Abstract Nichtrostende Stähle können in halogenidhaltigen Medien Schädigungen durch Lochkorrosion erleiden, die ihren Einsatz in der Praxis zu einem Risiko machen. Zum Verständnis der Prozesse, die zur Lochkorrosion, zur Lochbildung und zum Lochwachstum führen, wurden in den letzten Jahren umfangreiche Untersuchungen…
The reaction of methane (2%) with oxygen (2.8–4.6%) in nitrogen at atmospheric pressure over Pd/Al2O3, Pd–Pt/Al2O3 and Pd/Al2O3–CeO2 at temperatures in the range 250–600 °C has been studied using catalytic microcalorimeters (beads) with simultaneous analysis of gas mixtures by FTIR. With close-to-stoichiometric gas mi…
Laboratory corrosion tests have always been an important tool for Zr alloy development and optimization. However, it must be known whether a test is representative for the application in-reactor. To shed more light on this question, coupons of several Zr alloys were exposed under isothermal conditions in all or most o…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXT(4-Amino-2,6-dichlorophenyl)- bis(2,4,6-trichlorophenyl)methyl Radical: A New Constituent of Organic Magnetic MaterialsL. Teruel, Ll. Viadel, J. Carilla, Ll. Fajarí, E. Brillas, J. Sañé, J. Rius, and L. JuliáView Author Information Departament de Materials Orgànics Halogenats,…
Effect of aging at 873 K on the two-step B2→B19→B19′ transformation of a shape memory Ti–40.5Ni–10Cu alloy was studied. It was found that the start temperature of the B2→B19 transformation and that of the B19→B19′ transformation increase with increasing aging time. The start temperatures of the reverse transformations…
The promotive and suppressive effects of coexistence of bacterial strains on the growth of a diatom Chaetoceros gracilis were investigated under laboratory conditions. Tested bacterial strains were isolated from the diatom mass culture tanks at a kuruma prawn farm. To evaluate the effect of each bacterial strain, the…