Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Photochromism of Metal DithizonatesL. S. Meriwether, E. C. Breitner, and C. L. SloanCite this: J. Am. Chem. Soc. 1965, 87, 20, 4441–4448Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.…
Paramagnetic alpha-MnMoO4, the stable phase at STP, is monoclinic with lattice constants a=10.469±0.005, b=9.516±0.005, c=7.143±0.005 Å, and β=106°17′±6′, and space group C2/m. The crystal structure has been solved and refined by a combination of three-dimensional Patterson and Fourier series and by the method of leas…
ESR studies of three paramagnetic tetraphenylporphine chelates: vanadyl, cobalt, and copper reveal distorted crystal-field surroundings which are more pronounced in the cobalt derivative. The spin-Hamiltonian parameters and the 3d energy levels of the cobalt derivative are greatly influenced by axial distortions. The…
The copepod Lernaea sp. was found parasitizing 14 of 28 species of fishes collected from the Des Moines River, Iowa. Forty-nine diatom taxa from 15 genera were identified in a collection prepared by digestion of 50 algal-covered copepods. No diatoms were observed on copepods collected from the lower zone of the river.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Thermodynamics of the Scandium-Hydrogen System1,2M. L. Lieberman and P. G. WahlbeckCite this: J. Phys. Chem. 1965, 69, 10, 3514–3519Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org/…
The calculation performed in [1] is extended to the case of impurity ferromagnetism and of an external magnetic field. It is shown that depending on the ratio between ${T}_{\mathrm{max}}$ (see [1]), ${T}_{c}$ (Curie temperature) and $\mathrm{\ensuremath{\mu}}H$ various kinds of non-monotonic behaviour of the resistanc…
Abstract Dilatometrically determined glass transition temperatures and thermal expansion coefficients of 47 different polymers, most of them acrylics, are reported. The experimental values are discussed in terms of the effect of side‐chain flexibility, bulkiness, and polarity on the glass transition temperature and ar…
Abstract : The crystal structure of yttrium orthoferrite has been determined from full three-dimensional counter data and refined in the space group Pbnm by least squares to an accuracy of about .001 and .01A in positional parameters of Y(3+) and O(2-) respectively. Parameters are compared with those of GdFeO3, derive…
T Gibson, R M Kenedi, J E Craik; The mobile micro-architecture of dermal collagen: A bio-engineering study, British Journal of Surgery, Volume 52, Issue 10
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polycondensation of PhenylsilanetriolJohn F. Brown Jr.Cite this: J. Am. Chem. Soc. 1965, 87, 19, 4317–4324Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org/doi/10.1021/ja00947a017htt…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polycondensation of CyclohexylsilanetriolJohn F. Brown Jr. and Lester H. Vogt Jr.Cite this: J. Am. Chem. Soc. 1965, 87, 19, 4313–4317Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org…
Through single-crystal x-ray diffraction methods, the crystal structure of TiNi has been determined in the temperature range −70° to 900°C. Contrary to what has been assumed from previous work based on the powder pattern methods, the TiNi crystal structure is not a simple CsCl type. Rather, it has an a0=9Å superlattic…
The dislocation dynamics of Gilman and Johnston are applied to the problem of elastic—plastic flow in Armco iron at very high strain rates. The dislocation velocity is assumed to follow the law v=v∞ exp(−τ0/τ); experimental data support this form of dependence and are used to determine the value of τ0. This value is i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPOLYELECTROLYTE COMPLEXESAlan S. MichaelsCite this: Ind. Eng. Chem. 1965, 57, 10, 32–40Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org/doi/10.1021/ie50670a007https://doi.org/10.1021/ie…
"Spectroscopic Properties of Rare Earths." Optica Acta: International Journal of Optics, 12(4), p. 413
A new theory of Wood’s anomalies is presented which is based on a guided wave approach rather than the customary multiple scattering procedure. This approach provides both new insight and a method of calculation. It is shown that two distinct types of anomalies may exist: a Rayleigh wavelength type due to the emergenc…
The index of refraction of optical quality fused silica (SiO2) was determined for 60 wavelengths from 0.21 to 3.71 μ at 20°C. The dispersion equation n2-1=0.6961663λ2λ2-(0.0684043)2+0.4079426λ2λ2-(0.1162414)2+0.8974794λ2λ2-(9.896161)2.where λ is expressed in microns was found to yield an absolute residual of 10.5×10−6…
Es wird die Beschreibung eines neuen Kupfer-Zink-Arsensulfosalzes aus dem Lengenbach gegeben. Das Mineral ist rhomboedrisch (Raumgruppe R3 oder R3¯), von der Zusammensetzung Cu6Zn3As4S12-13 (Mikrosonde, Typ Cameca MS 85) und vermutlich vom Zinkblendetypus.
The rigid-sphere theory of liquids is shown to yield an expression for the surface tension of a one-component liquid which is essentially identical to an expression previously derived by the author employing a qualitative approach. Such a correlation suggests that the rigid-sphere theory of liquids approach is applica…
The spectrum of the free tripositive praseodymium ion (Pr IV) has been obtained under high resolution between 1200 Å and the infrared. The analysis has yielded all 49 levels of the four lowest configurations 4f2, 4f5d, 4f6s, 4f6p. A comparison with the crystal levels of Pr3+ in various lattices shows a depression of u…