Materials Literature
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The spectroscopic properties, including emission spectra and lifetimes, absorption and diffuse reflectance spectra and excitation spectra, of the hexanuclear copper(I) and silver(I) clusters Cu6(mtc)6 (1), Ag6(mtc) (2), and Ag6(dtc)6 (3) (mtc = di-n-propylmonothiocarbamate, dtc = di-n-propyldithiocarbamate) are report…
TABLE 2 (continued) Complex Organic ligand(s) Ref.
The 18 vibrational modes expected from group-theoretical analysis have been obtained in the polarized Raman spectra of ${\mathrm{ZnWO}}_{4}$ single crystals. The six internal modes of the ${\mathrm{WO}}_{6}$ octahedra have been assigned. The temperature dependence of the frequencies and linewidths of the internal mode…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelf-consistent field theories for polymer brushes: lattice calculations and an asymptotic analytical descriptionC. M. Wijmans, J. M. H. M. Scheutjens, and E. B. ZhulinaCite this: Macromolecules 1992, 25, 10, 2657–2665Publication Date (Print):May 1, 1992Publication History P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIdentification and quantification of the "Al13" tridecameric aluminum polycation using ferronDavid R. Parker and Paul M. BertschCite this: Environ. Sci. Technol. 1992, 26, 5, 908–914Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published i…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsothermal morphology diagrams for binary blends of diblock copolymer and homopolymerKaren I. Winey, Edwin L. Thomas, and Lewis J. FettersCite this: Macromolecules 1992, 25, 10, 2645–2650Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Publis…
The conductivity relaxation phenomenon in glassy and crystalline ionic conductors has been known for many years to be a highly nonexponential process. The stretched exponential function exp-(t/\ensuremath{\tau}${)}^{\mathrm{\ensuremath{\beta}}}$ has been used with varying levels of success to describe this relaxation.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleStructural investigations of new calcium - rare earth (R) oxyborates with the composition Ca4RO(BO3)3R. Norrestam, M. Nygren, and J. O. BovinCite this: Chem. Mater. 1992, 4, 3, 737–743Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published ini…
A poly(o‐phenylenediamine)(PoPD)‐film‐coated electrode had electrochemical responses only to two halogenide ions, I − and Br − , while it had no responses to other inorganic ions examined. In this case, the film was found to be permeable to the ions. The permeability of the ions was controllable by incorporating quino…
1. Stress analysis using modern computer modelling techniques indicated that the shell should fail in tension as a result of the accumulation of stress at its inner most surface with the characteristic notched appearance of the mammillary layer providing the ideal crack initiation site. 2. Practical observations howev…
A parently, certain single crystals do not obey Schmid's law for slip on individual systems. For example, many intermetallic compounds such as Ni 3Al with the LI 2 structure display yield behaviors that are called “anomalous” in the sense that the critical resolved shear stress on the primary slip system at yield is a…
Abstract The weathering of a trioctahedral mica (phlogopite, 2–100‐µm particle size) was investigated in the rhizosphere of ‘Turilo’ Italian ryegrass ( Lolium multiflorum Lam.). A special culture vessel made it possible to simulate a one‐dimensional macroscopic rhizosphere by developing a root mat on a polyamide net.…
The database on structural phase transitions is presented in the simple and easy accessible form of table. The symmetry changes and temperature for 3446 phase transitions and the references for each of 2242 registered crystalline materials with well defined stoichoimetry are the main data in this table. The rules for…
Deformation behavior of Ni2MnGa single crystals uniaxially loaded in compression and tension along the 〈100〉β1 and 〈110〉β1 axes were investigated. It was shown that three successive stress-induced structural transitions may be observed for specimens tensed along the 〈100〉β1 or compressed along the 〈110〉β1 direction, w…
Abstract Carbon black N110 and a precipitated silica, which have comparable surface area and structure, were selected as model fillers to study the effect of filler surface energies on rubber reinforcement. In comparison with carbon black, the surface energies of silica are characterized by a lower dispersive componen…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTpH-dependent interactions between adsorbed chitosan layersPer M. Claesson and Barry W. NinhamCite this: Langmuir 1992, 8, 5, 1406–1412Publication Date (Print):May 1, 1992Publication History Published online1 May 2002Published inissue 1 May 1992https://pubs.acs.org/doi/10.102…
Pair distribution function (PDF) analysis of neutron or X-ray powder diffraction data is a useful technique for analysis of short-range structure in both amorphous and crystalline materials. Errors in PDF determinations may arise from several sources: termination of the Fourier transform, lack of instrument resolution…
We have studied the mechanical responses of supercooled Ge-As-Se liquids to flexural strains and temperature steps. The departures from exponential relaxation correlate well with the variations in connectivity. The structural state dependence of the mechanical relaxation, detected in pure and weakly cross-linked Se, i…
The generation of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and the depletion of oxalic acid by photochemical/chemical cycling of Fe(III)/Fe(II)-oxalato complexes in sunlight has been studied under the conditions typical for acidified atmospheric water. H<sub>2</sub>O<sub>2</sub> is produced through the reduction…
In this paper we present a phase-field model to describe isothermal phase transitions between ideal binary-alloy liquid and solid phases. Governing equations are developed for the temporal and spatial variation of the phase field, which identifies the local state or phase, and for the composition. An asymptotic analys…