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。
The empirical correlation between meso-substitution and the phyllo-type spectrum in the porphyrin series is shown to be much less general than had previously been supposed. The variation of the spectrum with the electronic nature of the substituent is discussed.
Abstract An electron diffraction study was done with fine aragonite particles about 0.5 to 1.0 μ in size. The specimens were obtained by mixing a boiled calcium chloride solution (0.1 n) with 0.1 n of an ammonium carbonate solution. Extra spots were observed with half-integer indices {1⁄2,1⁄2,l}. This suggests the exi…
Abstract Stress softening of carbon black reinforced butadiene styrene rubber was studied as a function of the rate and temperature of the original tensile deformation. To a good approximation, stress softening depends on the product of the extension rate and a temperature function which is analytically well represent…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetic Studies on the Incorporation of Iron(II) into Porphyrins1Richard J. Kassner and Jui H. WangCite this: J. Am. Chem. Soc. 1966, 88, 22, 5170–5173Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966http…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuantitative Solubility—Structure Relationships for Some meta- and para-Substituted Benzoic Acids in Benzene and in Cyclohexane1C. Kinney Hancock, John N. Pawloski, and John P. IdouxCite this: J. Org. Chem. 1966, 31, 11, 3801–3804Publication Date (Print):November 1, 1966Publ…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic Spectra of 8-Mercaptoquinoline.P. D. Anderson and D. M. HerculesCite this: Anal. Chem. 1966, 38, 12, 1702–1709Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https://pubs.acs.org/doi/10.1021/a…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComplexes of Trichlorostannate(II) with Group Ib MetalsJ. A. Dilts and M. P. JohnsonCite this: Inorg. Chem. 1966, 5, 11, 2079–2081Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https://pubs.acs.org/doi/…
A technique combining pyrolysis and chromatography for the detection of vehicle tire abrasion products in roadway dust is described. Samples of elastomers used in tire formulations were volatilized and separated by gas-liquid chromatography to provide characteristic chromatograms. These identifying patterns appeared c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIntramolecular Photoacylation of Carbamates and Carbonates1N. C. Yang, Arnon Shani, and G. R. LenzCite this: J. Am. Chem. Soc. 1966, 88, 22, 5369Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https://pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Thermodynamic Study of the Vaporization Behavior of the Substoichiometric Plutonium Dioxide Phase1R. J. Ackermann, R. L. Faircloth, and M. H. RandCite this: J. Phys. Chem. 1966, 70, 11, 3698–3706Publication Date (Print):November 1, 1966Publication History Published online1…
Abstract The temperature at which vermiculite loses or gains an interlayer of water molecules was compared for a number of interlayer ion saturations. Results indicate the difference between contracting and expanding forces in vermiculite to be dependent upon interlayer ion charge, distance, and hydration energy. Impo…
The fluorescence of phosphors ABO2:Eu(A=Li, Na; B=Sc, Y, In, La, Gd, and Lu) is reported and discussed. The Eu3+ emission is strongly influenced by the crystal surroundings: in the α-NaFeO2 structure the 5D0—7F1 transition dominates; in the α-LiFeO2 structure the 5D0—7F2 transition, although both structures can be der…
Th e extrapolati on of the melting points , Tin, of th e n paraffins to large chain lengths (n ~ 00) is reexam in ed in order to reso lv e the differences in th e proposed values of th e co nve rgence temperature To = lin' Tin. Experimental liquid en tropies can be made consistant with a term , R In n, proposed by n -…
Abstract The factors affecting the efficacy of a closely packed bed of mixed cotton and a supporting fiber (Teflon, glass, Dynel) were evaluated for oil‐in‐water dispersions. Several other water‐organic systems were also tested. Superficial velocities ranged from 0.2 to 3.5 ft./min. Successful coalescence was attained…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAdsorption of Binary Hydrocarbon Gas Mixtures on Activated CarbonR. J. Grant and Milton ManesCite this: Ind. Eng. Chem. Fundamen. 1966, 5, 4, 490–498Publication Date (Print):November 1, 1966Publication History Published online1 May 2002Published inissue 1 November 1966https:…
The X-ray diffuse scattering from a crystal of NaNO 2 at temperatures above the Néel temperature is analysed to determine the nature of the inter-dipolar interaction in this substance. By taking the Ising model, the space correlation is calculated with the random phase approximation leaving the coefficients of the sho…
B. K. Vainshtein Barking, Essex: Elsevier . 1966. Pp. x + 414. Price £6 10s. The reviewer's job of conveying to prospective readers the flavour of this book has really been done already in the Preface to the book, written by Dr. M. F. Perutz. As Dr. Perutz nicely puts it, "... like Dante the author descends from the h…
The crystal structure of the high temperature form of BaO.B203 (m.p. 1095 + 5C) was determined by conventional three-dimensional Patterson and electron-density syntheses. The heavy atom technique was used to establish the initial phases. BaO.B203 crystallizes in the trigonal system, space group R Sc, with 18 formula u…
Abstract Es werden Gleichungen für die Löslichkeit von Wasserdampf und Wasserstoff in festen Oxiden unter Berücksichtigung der jeweils beteiligten Fehlordnungsstellen abgeleitet. Aus Messungen der Änderung des elektrischen Widerstandes von Cu 2 O, CoO und NiO durch die Gegenwart von Wasserdampf werden obere Grenzwerte…
Abstract A technique has been developed that determines simultaneously solubilities and diffusivities of gases in molten or thermally softened polymers. Henry's law was found to hold up to 20 atm. In addition it was found that pressure had no appreciable effect on diffusion coefficients up to 20 atm. Solubilities and…