Materials Literature
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Abstract By reacting a rigid rod epoxy terminated molecule ( p ‐bis(2,3‐epoxypropoxy)‐α‐methylstilbene) with an aliphatic carboxylic acid (decanedioic acid), a lightly crosslinked liquid crystalline network is obtained. This network exhibits a smectic‐like phase. While the mesophasic structure resulted “frozen” by the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTheoretical Investigation of the Structure and Spectra of Zinc PhthalocyaninesJohn O. Morley and Michael H. CharltonCite this: J. Phys. Chem. 1995, 99, 7, 1928–1934Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 Febr…
The N-terminal residues of the two heavy chains of the motor enzyme kinesin form two globular "heads"; the heads are attached to a "rod" domain which is a two-stranded alpha-helical coiled-coil. Interaction between the heads is thought to be important to kinesin function. The rod may not be necessary for head-head int…
Abstract The reaction of fac(S)-[Rh(aet)3] with Ni2+ at room temperature gave a linear-type S-bridged RhIIINiIIRhIII trinuclear complex, [Ni{Rh(aet)3}2]2+ (1). A similar reaction of ΔLll-fac(S)-[Rh(l-cys-N,S)3]3− with Ni2+ produced the corresponding trinuclear complex with l-cys ligands, ΔLllΔLll-[Ni{Rh(l-cys-N,S)3}2]…
<div class="htmlview paragraph">Future requirements of the legislative body in the USA and Europe, towards the reduction of exhaust emissions of motor vehicles, forces the automobile industry to improve its technology continually. An electrically heated catalyst, abbreviated EHC, offers a very high potential for…
Other| February 01, 1995 A new anhydrous amphibole from the Hoskins Mine, Grenfell, New South Wales, Australia: Description and crystal structure of ungarettiite, NaNa2(Mn22+Mn33+)Si8O22O2 Frank C. Hawthorne; Frank C. Hawthorne CNR Centro di Studio per la Cristallochimica e la Cristallografia, Pavia, Italy Search for…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTautomerism of Neutral and Protonated 6-Thioguanine in the Gas Phase and in Aqueous Solution. An ab Initio StudyC. Alhambra, F. J. Luque, J. Estelrich, and Modesto OrozcoCite this: J. Org. Chem. 1995, 60, 4, 969–976Publication Date (Print):February 1, 1995Publication History…
n alumina‐based composites containing ceria‐stabilized tetragonal zirconia, the martensite start temperature ( M s ) of the tetragonal‐to‐monoclinic zirconia phase transformation exhibits a grain size dependence that becomes increasingly pronounced as the zirconia content decreases. Neutron diffraction experiments con…
The nacre (mother-of-pearl) that forms the irridescent inner layers of mollusc shells is a highly ordered microlaminate composite of aragonite crystals and biopolymers with a strength and fracture resistance that far exceed those of the mineral crystals themselves. The processes governing the biofabrication of this ma…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiving Carbocationic Sequential Block Copolymerization of Isobutylene with .alpha.-MethylstyreneDawei Li and Rudolf FaustCite this: Macromolecules 1995, 28, 5, 1383–1389Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1…
The power-law frequency dependence of both the conductivity, \ensuremath{\sigma}(\ensuremath{\omega}), and permittivity, \ensuremath{\varepsilon}(\ensuremath{\omega}), of ion-conducting materials suggests that self-similar or scale-invariant behavior influences the transport of ions at high frequencies. Using an anoma…
Two twist grain boundary phases (TGB-A and TGB-C*) have been observed in binary mixtures exhibiting a NAC multicritical point. The observed TGB phases are of very high thermal stability - for some concentrations the temperature range of their existence was as large as 40 K. Optical properties and textures has been inv…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLow-Temperature Reactions of Atomic Cobalt with CH2N2, CH4, CH3D, CH2D2, CHD3, CD4, H2, D2, and HDW. E. Billups, Sou-Chan Chang, Robert H. Hauge, and John L. MargraveCite this: J. Am. Chem. Soc. 1995, 117, 4, 1387–1392Publication Date (Print):February 1, 1995Publication Hist…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the Formation of Tetracoordinate Boron in Rubidium Borate GlassesR. E. Youngman and J. W. ZwanzigerCite this: J. Am. Chem. Soc. 1995, 117, 4, 1397–1402Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February 1995h…
Abstract The electrooxidation behavior of iodide, thiocyanate, and cyanide on poly(vinylferrocenium)‐coated Pt electrodes was investigated using cyclic voltammetry and differential pulse anodic stripping voltammetry. IR and UV spectroscopic data, and differential scanning calorimetry (DSC) measurements indicated that…
A family of mesomorphic bis(alkoxystilbazole) silver(I) dodecylsulphate and octylsulphate complexes has been studied by X-ray scattering in their various mesophases. In particular, many of the complexes exhibit a thermotropic cubic mesophase and, for one example, a monodomain was obtained allowing the space group to b…
We report on the crystallization behaviour of amorphous Si(a-Si) in a-Si/Ag/a-Si trilayer and a-Si/Ag multilayer systems using in situ transmission electron microscopy (TEM) and differential scanning calorimetry. The crystallization temperature of a-Si in these Si/Ag layered systems is 385–415°C, about 200°C lower tha…
Physical properties of Ag2S-As2S3 glassy alloys have been studied as a function of the Ag atomic concentration x. With an increase in x, the optical-absorption edge exhibits a red shift, while the steepness of the Urbach tail changes little. In the glasses with x≥15, the electrical conductivity is governed by Ag+ ioni…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyurethane Cationomers with Pendant Trimethylammonium Groups. 1. Fourier Transform Infrared Temperature StudiesR. J. Goddard and S. L. CooperCite this: Macromolecules 1995, 28, 5, 1390–1400Publication Date (Print):February 1, 1995Publication History Published online1 May 2…
Enolase (2-phospho-D-glycerate hydrolase; EC 4.2.1.11) from the hyperthermophilic bacterium Thermotoga maritima was purified to homogeneity. The N-terminal 25 amino acids of the enzyme reveal a high degree of similarity to enolases from other sources. As shown by sedimentation analysis and gel-permeation chromatograph…