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。
Secondary kH/kT kinetic isotope effects in H2O and kH/kT or kD/kT isotope effects in D2O have been measured for the triosephosphate isomerase-catalyzed conversion of dihydroxyacetone 3-phosphate (DHAP) to D-glyceraldehyde 3-phosphate. The proton transfer steps are made rate-limiting using [1(R)-2H]-labeled substrate i…
The interaction of water as a solvent on selected faces of crystals of N-n-octyl-D-gluconamide and α-resorcinol has been examined using the Monte Carlo molecular simulation technique. The interaction energies for N-n-octyl-D-gluconamide are in good agreement with the experimentally observed contact angles, and indicat…
Abstract Mineral modes have been determined for specimens of five sedimentary rocks (arenite, graywacke, slate, mudstone, and shale) from Cu Kalpha X-ray powder diffraction data using the Rietveld method. Up to eight individual mineral components were measured in each sample, with a detection limit of about 0.5 wt %,…
The wet chemical preparation, the electron microscopic characterization, and the temperature-dependent absorption as well as both the static and time-resolved fluorescence properties of Cd 3 P 2 quantum dots are presented. The particles are strongly size quantized as seen from the 1.5 eV blue shift of the first electr…
The complex [FeL2(NO)2](L = PEt31a, L = PPh31b or L2= dppe 1c) prepared from [{Fe(µ-I)(NO)2}2] and PPh3 or Ph2PCH2CH2PPh2(dppe){in the presence and absence of [Co(cp)2](cp =η5-C5H5) respectively} undergo one-electron oxidation at a platinum electrode in CH2Cl2. The complex [{Fe(µ-dppm)(NO)2}2]2, prepared from [{Fe(µ-I…
Diffusion coefficients of erucamide (13- cis -docosenamide, H 3 C(CH 2 ) 11 HC CH(CH 2 ) 7 CONH 2, eru) into isotactic polypropylene (i-PP) were determined under different isothermal conditions, viz., 323, 333, and 353 K in times of 15 days. Some other experiments were performed for several predetermined time interval…
M-type strontium ferrite films were prepared by radio-frequency (rf) sputtering on fused quartz substrates using different deposition conditions and were subjected to two different types of annealing treatments. The study showed that in addition to the deposition conditions such as rf power, oxygen to argon ratio in t…
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…