Materials Literature
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Abstract Das IR‐Spektrum von [ONC(CN) 2 ] − wird beschrieben. Die Zuordnung der Banden geschieht mit Hilfe von partieller 15 N‐Substitution. Bildet dieses Anion Komplexe, so verschieben sich seine IR‐Banden. Die Verschiebungen werden angegeben und die möglichen Bindungsverhältnisse diskutiert. Ferner wird ein unerwart…
Interstitial order-disorder transformation regarding oxygen atoms dissolved in alpha-titanium has been studied by neutron diffraction on single crystals in the range from 17 to 28 at% O. Occupation probabilities of the oxygen atoms in the octahedral interstitial sites are determined quantitatively with the variation o…
An inconsistency between M\"ossbauer and neutron-diffraction measurements on Mn${\mathrm{Te}}_{2}$ is resolved. A new generalization of magnetic ordering of the first kind preserves the characteristic neighbor relationships of that scheme and at the same time accounts for the M\"ossbauer results.
Abstract The diffusion of ethyl p ‐aminobenzoate in silicone rubber membranes containing varying amounts of a high surface area fumed silica filler is described, as is a new apparatus for assaying multiple samples. It is shown that increased filler loading results in what appears to be a linear decrease in transmissio…
The equation of motion for cracks which are subjected to stress pulses is derived by the Lagrangian method. An asymptotic solution is used to determine terminal crack velocity. The time in which essentially constant velocity will be reached is determined. The equation is further used to formulate a dynamic stability c…
The secondary wall of cotton fiber contains well aligned helical macrofibrils of about 1000 Å diameter, changing sign in irregular intervals. The sign reversals are in some respect cross sections of enhanced mechanical strength, particularly in respect to swelling. The macrofibrils are composed of a great many microfi…
Ultraviolet spectra of thallium(I), lead(II), and bismuth(III) in chloride–sulfate and all-sulfate glasses have been studied, and it is observed that the P13 ← 1S0 transition undergoes a blue shift as the sulfate: chloride ratio increases. This is interpreted in terms of increased ionicity of the probe metal ions in t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOxidative cycloaddition of metal dithiolenes to olefins. Synthesis and characterization of norbornadiene-bis-cis-(1,2-perfluoromethylethene-1,2-dithiolato)nickelRichard M. Wing, Gerald C. Tustin, and William H. OkamuraCite this: J. Am. Chem. Soc. 1970, 92, 7, 1935–1939Public…
Energy-straggling distributions of 20- and 49-MeV protons and 80-MeV helium ions have been measured for energy losses of 10 to 92% of the initial kinetic energy. Aluminum and gold absorbers were used, and the residual energy spectra were measured with lithium-drifted silicon semiconductor detectors. Experimental resul…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT31P-31P spin-spin coupling in complexes containing two phosphorus ligandsF. B. Ogilvie, J. M. Jenkins, and John G. VerkadeCite this: J. Am. Chem. Soc. 1970, 92, 7, 1916–1923Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue…
Microstructures of two sodium borosilicate glasses were examined. Electron micrographs of replicas of water‐etched fracture surfaces show that the microphases increase in size with the temperature and time of heat treatment. The relative amounts of soluble and insoluble microphases remain essentially unchanged. Scanni…
Luminescence spectra, excitation spectra, and lifetimes taken on Cu and VO porphyrins in polymethylmethacrylate on a Cryo-Tip between 80 and 10°K confirm the prediction that the unpaired metal d electron couples with the porphyrin triplet to give “tripdoublet” and quartet states. Four Cu porphyrins show loss of the ma…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheory of chemically induced nuclear spin polarization. III. Effect of isotropic g shifts in the components of radical pairs with one hyperfine interactionGerhard L. Closs and A. D. TrifunacCite this: J. Am. Chem. Soc. 1970, 92, 7, 2183–2184Publication Date (Print):April 1,…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of methyl sterculateWalter J. Gensler, M. Brawner Floyd, Ryobun Yanase, and Kenneth PoberCite this: J. Am. Chem. Soc. 1970, 92, 8, 2472–2475Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 April 1970https://doi…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThiophosphate chemistry. Anion set X2PS2-, (XPS2)2S2-, and (XPS2)2S22-Herbert W. Roesky, Fred N. Tebbe, and Earl L. MuettertiesCite this: Inorg. Chem. 1970, 9, 4, 831–836Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 A…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReduction of Iron Ore with Hydrogen in a Direct Current Plasma JetHerbert L. Gilles and Curtis W. ClumpCite this: Ind. Eng. Chem. Process Des. Dev. 1970, 9, 2, 194–207Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 Apri…
Abstract The thermal decomposition and vaporisation of ammonium sulphate, (NH 4 ) 2 SO 4 , is shown to take place via two distinct sets of reactions. In the first, ammonium pyrosulphate, (NH 4 ) 2 S 2 O 7 , is the primary condensed phase product: 2(NH 4 ) 2 SO 4 ← (NH 4 ) 2 S 2 O 7 +2NH 3 +H 2 O The second stage conce…
Abstract A newly developed numerical Laplace transform inversion technique is described. A derivation of the method, termed the ‘multidata method’, is presented along with a description of a similar collocation method. Similarities and differences between the two numerical methods are described and discussed. Results…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDielectric properties of liquid propylene carbonateLarry Simeral and Ralph L. AmeyCite this: J. Phys. Chem. 1970, 74, 7, 1443–1446Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 April 1970https://pubs.acs.org/doi/10.102…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoluminescence of transition metal coordination compoundsPaul D. Fleischauer and Patricia. FleischauerCite this: Chem. Rev. 1970, 70, 2, 199–230Publication Date (Print):April 1, 1970Publication History Published online1 May 2002Published inissue 1 April 1970https://pubs.a…