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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpin equilibria in octahedral iron(II) poly((1-pyrazolyl)-boratesJ. P. Jesson, Swiatoslaw. Trofimenko, and Donald R. EatonCite this: J. Am. Chem. Soc. 1967, 89, 13, 3158–3164Publication Date (Print):June 1, 1967Publication History Published online1 May 2002Published inissue…
Phase relations were studied in the system ZrO 2 ‐MgO with emphasis on the range 1350° to 1600°C. A phase relation was determined from samples, using precision lattice parameters, X‐ray diffraction line intensities, and petrographic observations, and from dynamic observations of the phases present using high‐temperatu…
Abstract The stoichiometry, equilibrium, and kinetic properties of a terminal deoxynucleotidyltransferase isolated from calf thymus gland are described. The reaction catalyzed may be written dXTP + d(pY)m (Mg++)/→ d(pY)m(pX)n + nPPi and the ratio of polymer nucleotide to monomer at equilibrium (pH 7.0, 35°) is about 9…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe crystal and molecular structure of triclinic tetraphenylporphyrinStuart J. Silvers and Alexander. TulinskyCite this: J. Am. Chem. Soc. 1967, 89, 13, 3331–3337Publication Date (Print):June 1, 1967Publication History Published online1 May 2002Published inissue 1 June 1967h…
Not available
Not available
Not available
Not available
Not available
Not available
The CO 2 Acceptor Gasification Process is discussed in light of the required properties of the CaO acceptor. Equilibrium data for reactions involving the CO 2 and sulfur acceptance and for sulfur rejection fit the process requirements. The kinetics of the reactions are also sufficiently rapid. Phase equilibrium data i…
The 0.1 M Na-pyrophosphate solution extracted some of the Fe-, Al-organic matter products in Podzol B and some Acid Brown Wooded B horizons, but it dissolved a low proportion of the free Fe in the B horizon of some Gleysolic soils. It did not dissolve the inorganic amorphous or crystalline Fe and Al substances tested.…
Abstract Three polyethyleneoxide samples of molecular weights ranging from 6,000 to 28,000 have been studied with low‐angle X‐ray diffraction and dilatometry techniques. The thickness of the lamellae, the number of folds of the polymer chains, and the degree of crystallinity have been determined as functions of the cr…
Abstract In addition to the six liquids for which the results of viscoelastic measurements are reported in part I, studies have also been made on a further eight liquids which differ widely in molecular composition, namely: squalane, tri(β-chloroethyl) phosphate, tri(o-tolyl) phosphate, tri(m -tolyl) phosphate, tris(2…
Size-effect oscillations in the Hall resistivity have been studied in a monocrystal of highly pure cadmium at liquid-helium temperatures. Samples ranging in thickness from 2.01 to 0.09 mm were prepared from a single monocrystal by successively reducing the thickness using spark planing followed by electropolishing. Th…
The effective elastic constants of CdS have been measured by the ultrasonic pulse-echo method as a function of hydrostatic pressure to 4 kbar. The logarithmic pressure derivatives determined were $\frac{d\mathrm{ln}{C}_{11}}{\mathrm{dP}}=3.56$, $\frac{d\mathrm{ln}{C}_{33}}{\mathrm{dP}}=3.44$, $\frac{d\mathrm{ln}{C}_{1…
A formula for the phonon-drag part ${S}_{g}$ of the thermoelectric power in metals is obtained by assuming that the electron scattering processes can be described by a relaxation time $\ensuremath{\tau}(\mathrm{k})$. The formula differs from the simplest variational expression only by having extra factors of $\ensurem…
The specific heat of a ``splat''-formed amorphous alloy of gold-silicon-germanium exhibits a very steep rise with increasing temperature near 295°K to a peak and then begins to fall before crystallization occurs. These last Cp values fall on a reasonable extrapolation of the high temperature Cp-T relation found for th…
A study of the 7Li nuclear magnetic resonance in a LiNbO3 single crystal is made and the electric field gradient at the lithium site is determined. Electric-field-gradient calculations indicate that the net charge on the niobium is +1.59 while that on the oxygens is −0.86. This shows that the niobate ion is predominat…