Materials Literature
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The existence of peripheral ring currents in the dianion and the tetraanion of (1) is manifested in the NMR spectra. In the case of (1), the dianion, and the tetraanion, H-3 (outer) absorbs at δ = 7.37, 9.26, and 4.48, respectively, and H-4 (inner) at 7.37, −7.07 (!), and 12.76, respectively. From the viewpoint of bon…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of some .pi.-bonded diazo complexes of nickel(0), platinum(0), and ruthenium(0): molecular structure of Ru(CO)2(N2C5Cl4)(P(C6H5)3)2.CH2Cl2K. Dahl Schramm and James A. IbersCite this: Inorg. Chem. 1980, 19, 8, 2441–2448Publication Date (Print):A…
A study has been made of the morphogenetic properties of anterior and posterior skin from the lower forelimb of the axolotl. The basic experiment consisted of a graft of a half cuff of skin from a donor to a host limb followed by a 2-week healing period, amputation through the graft, and a study of the resulting regen…
Thermal stresses in chemical vapor deposited (CVD) vitreous silicate and phosphosilicate glass (PSG) films on Si substrates are measured in situ from room temperature (RT) to 900 °C. As-deposited films grown at one atmospheric (APCVD) and lower pressures (LPCVD) are found to be inherently under a tensile and compressi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEntropy, enthalpy, and side arm porphyrins. 1. Thermodynamics of axial ligand competition between 3-picoline and a series of 3-pyridyl ligands covalently attached to zinc tetraphenylporphyrinF. Ann Walker and Mabry BensonCite this: J. Am. Chem. Soc. 1980, 102, 17, 5530–5538P…
The corrosion of mild steel in kraft chemical pulping equipment has been investigated by laboratory electrochemical testing in relevant caustic solutions. Potentiostatic polarization curves were obtained in alkaline electrolytes with additions of sulfur containing compounds known to exist in process liquors. By observ…
Taichi Usui, Katsuko Asari, Takashi Mizuno; Isolation of Highly Purified “Fucoidan” from Eisenia bicyclis and Its Anticoagulant and Antitumor Activities, A
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation E. A. Kearsley, L. J. Zapas; Some Methods of Measurement of an Elastic Strain‐Energy Function of…
Physical CO solubilities and total O 2 solubilities (as chemically formed O 2 − and O 2 = ions) have been determined for a comparatively wide range of carbonate melt compositions, and some restricted data on nitrogen and CO 2 solubilities have also been obtained. In general, the Uhlig‐Blander equation in its simple fo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfrared spectral investigations of room-temperature aluminum chloride-1-butylpyridinium chloride meltsR. J. Gale and R. A. OsteryoungCite this: Inorg. Chem. 1980, 19, 8, 2240–2242Publication Date (Print):August 1, 1980Publication History Published online1 May 2002Published…
Arrhenius plots are useful in predicting long-term use temperatures of organic materials and in choosing parameters for accelerated aging. For materials and components without established Arrhenius curves, a conservative value for the slope of the curve (which is also a measure of the activation energy of degradation)…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSite-dependent vibronic line widths and relaxation in the mixed molecular crystal pentacene in p-terphenylR. W. Olson and M. D. FayerCite this: J. Phys. Chem. 1980, 84, 16, 2001–2004Publication Date (Print):August 1, 1980Publication History Published online1 May 2002Publishe…
Magnetoelectric experiments provide information on spin configurations, critical indices and microscopic ionic interactions. The basic theory of the magnetoelectric effect in antiferromagnets is rederived in this article and extended to situations in which there is an external magnetic field including the spin-flop ph…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeroxo complexes of molybdenum and tungsten stabilized by oxides of amines, phosphines, and arsines. Stability studiesAlan D. Westland, Ferial Haque, and Jean Marc BouchardCite this: Inorg. Chem. 1980, 19, 8, 2255–2259Publication Date (Print):August 1, 1980Publication Histor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structure analyses of Rh2(bridge)4(BPh4)2.CH3CN and Rh2(TM4-bridge)4(PF6)2.2CH3CN. Further electronic spectral studies of binuclear rhodium(I) isocyanide complexesKent R. Mann, John A. Thich, Robert A. Bell, Catherine L. Coyle, and Harry B. GrayCite this: Inorg. Chem…
Abstract Infrared (IR) spectroscopy was used to study molecular deformation processes in polymers as a function of stress, strain, time and temperature. Stress‐induced frequency shifts were found to depend on temperature and morphology. Deformation of viscoelastic polypropylene was examined in terms of time dependent…
Abstract— Two examples of a new class of compounds, polyenes covalently linked to meso‐ tetraarylporphyrins, have been prepared. Optical studies revealed that energy transfer from a 26 π electron polyene moiety to the porphyrin was zero, whereas energy transfer efficiency from a polyene containing 18 π electrons was ˜…
The fluorescence excitation spectrum of free base phthalocyanine was observed in a supersonic free jet. The spectrum was very intense, and the cooling provided by the supersonic expansion produced a very well-resolved spectrum showing extensive vibrational structure. This is the first time that vibrational structure h…
For many years, study of the defect state of oxide crystals was overshadowed by activity in the alkali halides. However, during the last decade, work on oxides has emerged as an important field of study in its. own right. This burgeoning of interest came about for many reasons. First the properties of defects in the a…
A new type of highly stabilized GaAs FET oscillator using a dielectric resonator and a stabilization resistor in the feedback circuit has been developed. The oscillator fabricated with a microwave integrated circuit has a high external quality factor Q/sub ex/ for more than1000 with no hysteresis phenomena. The microw…