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A simplifed method which requires only a single mirror for making guided-wave gratings (periodic, chirped, and curved) is described, and the properties of gratings fabricated by this method are reported.
Peer reviewed: Yes
The ground state structure of Si3 is found to be cyclic (1A1, C2v symmetry) with an apex bond angle of ≂80°. The linear form, analogous to the known structure of C3, is found to be a saddle point which transforms without activation to the cyclic structure. There is a low-lying triplet state (3A′2, D3h symmetry) which…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA theoretical study of the heats of formation of silicon hydride (SiHn), silicon chloride (SiCln), and silicon hydride chloride (SiHnClm) compoundsPauline Ho, Michael E. Coltrin, J. S. Binkley, and C. F. MeliusCite this: J. Phys. Chem. 1985, 89, 21, 4647–4654Publication Date…
Abstract Most rheological and rheo‐optical properties of suspensions such as viscosity and light‐scattering intensities can be expressed in terms of the average orientation and/or the average concentration distribution of the suspended particles. In general one can distinguish several distinct regimes: (i) infinitely…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolubilities of BHT in various solventsShu Sing Chang and John R. MaureyCite this: J. Chem. Eng. Data 1985, 30, 4, 384–387Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 1985https://pubs.acs.org/doi/10.1021/je…
Abstract Bis‐(4‐vinylphenyl) ether (BVPhE) was obtained by the polycondensation of bis‐[4‐(1‐hydroxyethyl)phenyl] ether and subsequent dehydration of the resulting polyether. The kinetics of three‐dimensional polymerization of BVPhE in an inert medium and in the presence of air have been investigated by IR spectroscop…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolymerization of macrocyclic phospholipid- and surfactant-based vesiclesSteven L. Regen, N. K. P. Samuel, and Jitender M. KhuranaCite this: J. Am. Chem. Soc. 1985, 107, 20, 5804–5805Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Publis…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of .sigma.-bonded alkyl- and aryliron porphyrins with nitric oxide. Synthesis and electrochemical characterization of six-coordinate nitrosyl .sigma.-bonded alkyl- and aryliron porphyrinsR. Guilard, G. Lagrange, A. Tabard, D. Lancon, and K. M. KadishCite this: Inor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemistry and spectroelectrochemistry in indium(III) porphyrins. Reactions of five-coordinate ionic complexesK. M. Kadish, J. L. Cornillon, P. Cocolios, A. Tabard, and R. GuilardCite this: Inorg. Chem. 1985, 24, 22, 3645–3649Publication Date (Print):October 1, 1985Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of a lead(II) salt of ethane-1,2-dithiol, a simple analog of therapeutic chelating dithiolsPhilip A. W. Dean, Jagadese J. Vittal, and Nicholas C. PayneCite this: Inorg. Chem. 1985, 24, 22, 3594–3597Publication Date (Print):October 1, 1985Publication History Publish…
(U,Pu)O2 solid solutions are completely soluble in boiling 5 and 10 M nitric acid up to plutonium concentrations of 55 and 65 wt% of PuO2, respectively. The dissolution of the solid solutions decreases drastically at plutonium concentrations above 35 and 40 wt% of PuO2 in 5 and 10 M nitric acid, respectively, with a t…
Article Single crystal X-ray investigation of norsethite, BaMg(CO3)2: one more mineral with an aplanar carbonate group was published on October 1, 1985 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 171, issue 1-4).
Abstract Molecular weight distributions, long chain branching frequency, and solution viscosities of samples of commercial poly(vinyl alcohol) (PVA) are reported. The PVA was fully reacetylated to poly(vinyl acetate) (PVAc) for characterizations by size exclusion chromatography using a low angle light scattering detec…
The formation of the tetragonal Fe14La2B phase has been examined in both as-cast and melt-spun Fe-La-B alloys using thermal and magnetic techniques together with x-ray diffraction analysis. It is found that this phase exists in both types of alloys and that it is produced by annealing at relatively low temperatures. T…
<p>The well-resolved ESR powder spectra of blue platinum complexes prepared from 1-methylhydantoin and 5-methyl-2-pyrrolidinone offer the possibility of probing various structural models. A good agreement between the experimental and the calculated spectra is obtained by assuming that the hyperfine structure is…
Abstract The topic of electromagnetic interference (EMI) has been reviewed briefly to outline the need for conductive composite materials. The characteristics of a conductive filler which lead to high efficiency at small filler concentrations were examined qualitatively. One of these characteristics, aspect ratio, was…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotothermal dehydrochlorination of poly(vinyl chloride)J. F. Rabek, B. Raanby, and T. A. SkowronskiCite this: Macromolecules 1985, 18, 10, 1810–1818Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 1985https://…
The compound C~(salen)Ni(hfa)w~h ere salen is N,N'-ethylenebis(oxosalicy1diiminato) and hfa is hexafluoroacetylacetonato has been synthesized and its crystal structure has been solved at -123 K. It crystallizes in the monoclinic system, space group P2,/c: a = 9.287 (4) A, b = 21.533 (2) A, c = 14.733 (3) A, fl = 94.36…
This paper summarizes the results of joint research conducted by ENEL-CESI (Italy), ESCOM (South Africa) and CFE (Mexico) into the influence of air density on the impulse strength of external insulation.