Materials Literature
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Many desirable features of an alkyl azide synthesis—among other things reaction at rom temperature in organic solvents, work-up without introduction of heat—are combined in the use of the novel “azidizing” polymer 1. The polymer 1 was prepared from Amberlite IR-400 and NaN3, allowed to react in ca. tenfold excess with…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHypervalent silicon hydrides: SiH5-David J. Hajdasz and Robert R. SquiresCite this: J. Am. Chem. Soc. 1986, 108, 11, 3139–3140Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May 1986https://pubs.acs.org/doi/10.1021/ja0027…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirect determination by tungsten-183 NMR of the locations of added electrons in ESR-silent heteropoly blues. Chemical shifts and relaxation times in polysite mixed-valence transition metal speciesMariusz. Kozik, Charles F. Hammer, and Louis C. W. BakerCite this: J. Am. Chem.…
Using thermodynamic and kinetic considerations, we explain the quasiequilibrium, morphological, and structural characteristics of thermally induced oxide precipitates in Czochralski silicon. A model based upon the formation of Frenkel defects at the silicon/silica interface is used to explain the experimentally observ…
Abstract A new molecular superconductor based on BEDT-TTF molecule was prepared electrochemically by using the mixed supporting electrolyte, (n-C4H9)4NI3 and (n-C4H8)4NAuI2. The superconducting transition takes place at ambient pressure at 3.6 K. X-Ray diffraction patterns show that the system can be approximately ass…
The initial events occurring at the blood-polymer interface were examined using a canine ex vivo arteriovenous shunt model. Thrombogenic (fibrinogen) and nonthrombogenic (albumin) proteins were preadsorbed on poly(vinyl chloride), polyethylene, and silicone rubber shunt surfaces, and the blood responses were analyzed…
We study the problem of velocity and shape selection in the growth of dendritic crystals. We demonstrate that the presence of surface tension destroys the Ivantsov family of solutions at all but a single velocity. This occurs at all undercoolings and for both two-dimensional and axisymmetric three-dimensional dendrite…
The maximum entropy method (MEM) is used to analyze quasielastic light scattering correlation functions. The central problem, in such data analysis, is the recovery of the distribution of exponentials describing the decay of the correlation function (i.e., inverting the Laplace transform). MEM is shown to give a high-…
Ceruloplasmin (CP) is a copper-binding protein in vertebrate plasma. It is the product of an intragenic triplication and is composed of three homologous domains. Oligonucleotide probes constructed according to published amino acid sequences were used to identify cDNA clones encoding human CP. Two clones, CP-1 and CP-2…
First, we demonstrate that careful simulations of fluids have enough accuracy that the resulting radial distribution function can be used to test inversion methods. Second, we introduce a method which allows extraction of the pair interaction starting from structural data for simple liquids even under triple-point con…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInteraction between copper(II) ions through the azido bridge: concept of spin polarization and ab initio calculations on model systemsMarie France. Charlot, Olivier. Kahn, Max. Chaillet, and Christiane. LarrieuCite this: J. Am. Chem. Soc. 1986, 108, 10, 2574–2581Publication…
Vacuum-deposited thin films have a columnar structure that includes appreciable void volume. This structure is responsible for many differences between the properties of materials in the form of thin films and in bulk. Refractive index is usually reduced and is a sensitive function of preparation conditions. Films als…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFriedel-Crafts acylation of toluene and p-xylene with carboxylic acids catalyzed by zeolitesBich Chiche, Annie Finiels, Catherine Gauthier, Patrick Geneste, Jean Graille, and Daniel PiochCite this: J. Org. Chem. 1986, 51, 11, 2128–2130Publication Date (Print):May 1, 1986Publ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotoreduction of indigo dyes by electron donors. One- and two-electron-transfer reactions as a consequence of excited-state quenchingKirk S. Schanze, Lester Y. C. Lee, Charles. Giannotti, and David G. WhittenCite this: J. Am. Chem. Soc. 1986, 108, 10, 2646–2655Publication D…
The combination of properties of beryllium which results in this very low Z element being a candidate for use in fusion reactors is reviewed. The occurrence, availability, and processing of beryllium from both bertrandite (domestic) and beryl (imported) ores are described. The available beryllium grades are characteri…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structure of bis[bis(1,4,7-triazacyclononane)nickel(III)] dithionate heptahydrate and its single-crystal EPR spectrumKarl Wieghardt, Wolfgang Walz, Bernhard Nuber, Johannes Weiss, Andrej Ozarowski, Horst Stratemeier, and Dirk ReinenCite this: Inorg. Chem. 1986, 25, 1…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDonor-acceptor layer formation and lattice site preference in the solid: the CaBe2Ge2 structureChong. Zheng and Roald. HoffmannCite this: J. Am. Chem. Soc. 1986, 108, 11, 3078–3088Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published ini…
As the result of a printing error the captions for figures 17 and 18 as well as figures 19 and 20 were inadvertently interchanged
Thin films of various vanadium oxides, including the phase transition material vanadium dioxide, have been deposited onto sapphire substrates by reactive ion-beam sputtering. In this process, an argon ion beam sputters a vanadium target in the presence of an oxygen background. Coating chemistry, structure, surface mor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFrom plastic-crystal paraffins to liquid-crystal polyethylene: continuity of the mesophase in hydrocarbonsGoran UngarCite this: Macromolecules 1986, 19, 5, 1317–1324Publication Date (Print):May 1, 1986Publication History Published online1 May 2002Published inissue 1 May 1986…