Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structure of a new ternary chalcogenide Nb3Pd0.72Se7; interrelationships in the packing of prisms and planesDouglas A. Keszler and James A. IbersCite this: J. Am. Chem. Soc. 1985, 107, 26, 8119–8127Publication Date (Print):December 1, 1985Publication History Pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical and spectroelectrochemical studies of monomeric rhodium(III) porphyrins in nonaqueous mediaK. M. Kadish, C. L. Yao, J. E. Anderson, and P. CocoliosCite this: Inorg. Chem. 1985, 24, 26, 4515–4520Publication Date (Print):December 1, 1985Publication History Publ…
Abstract Investigation of the photoreduction of copper(II) to copper(I) in methanolic solutions of copper(II) chloride and copper(II) bromide indicates the halide-to-copper(II) charge-transfer (CT) responsible for the photoreduction. Quantum yields for the formation of copper(I) as a function of irradiating wavelength…
The large-amplitude vibrational behavior of a shallow spherical-cap shell is investigated theoretically using simple arguments. The results of this approximate analysis are expressed in the form of appealingly simple nondimensional quantities. It is shown that the frequency of the fundamental mode of such a shell fall…
Abstract Copper-sepiolites exchanged at different levels have been studied by ESR, IR, and TG. The results indicate that in the unheated samples the Cu 2+ ions are located in octahedral edge positions. After dehydration, the Cu 2+ ions occur in two positions with different environments. Some of the Cu 2+ ions lose the…
Abstract Hydroxyl-bastnaesite-(Nd), the Nd- and OH-dominant new member of the bastnaesite group, has been found in the red karstic bauxites near Nikšić, Montenegro. It occurs as whitish, irregular aggregates of crystals usually 100–200 µ m in diameter. Hexagonal with the cell dimensions a = 7.191 and c = 9.921 Å, with…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe ferric chloride-.alpha.-diamine system. 3. X-ray crystallographic, magnetic susceptibility, and zero- and high-field Moessbauer spectroscopy investigation of bis(2,2'-bipyridine)dichloroiron(2+) tetrachloroferrate(2-): slow paramagnetic relaxation and magnetic ordering o…
Spherical alumina powder, composed of α‐Al 2 O 3 and transitional alumina phases, was compacted by explosive shock loading with maximum pressures of 13 to 26 GPa and a maximum adiabatic temperature rise of ∼400°C. A final density >90% of theoretical was achieved. The powder densified primarily by plastic deformatio…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTManganese(III) thiolate chemistry: new structural types, including the first mixed-valence metal thiolateJeffrey L. Seela, Kirsten Folting, Ru Ji Wang, John C. Huffman, George Christou, Hsiu Rong Chang, and David N. HendricksonCite this: Inorg. Chem. 1985, 24, 26, 4454–4456P…
The electronic structure of materials not only is fascinating from a theoretical point of view, but also has tremendous implications for technology. Electronic-structure studies, in fact, account for the majority of uses of uv radiation from synchrotron sources. Most of these studies involve photoelectron spectroscopy…
The structure of amorphous red phosphorus has been studied by neutron diffraction, using both reactor and pulsed neutron sources. Real-space pair correlation functions obtained by Fourier transformation of the experimental scattering data have been compared with those calculated for a three-fold coordinated CRN model,…
Data on the linear viscoelastic relaxation of wool fibers for a range of relative hu midities below the gas transition ( T g ) are systematized by a humidity-time superposition method. The differences in the relaxation behavior in water where the fiber is above its Tg are pointed out. The analysis relates to the prope…
The structure of liquid formamide is discussed on the basis of X-ray diffraction measurements and MO calculations. It is concluded that liquid formamide has both chain-like and ring-dimer moieties and that the former ones have a longer life time.
A simple block digester for total soil N measurement was assembled from a small low‐temperature aluminum block and a hot plate. The samples are digested in 16 mm diameter heat resistant glass tubes using H2SO4 and a digestion mixture composed of CuSO4 and K2SO4. The ammonium content in the digest is determined colorim…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of the polyoxothioanions TaW5O18S3- and NbW5O18S3-W. G. Klemperer and C. SchwartzCite this: Inorg. Chem. 1985, 24, 26, 4459–4461Publication Date (Print):December 1, 1985Publication History Published online1 May 2002Published inissue 1 December…
The present work describes a perchloric-acid-soluble high-mobility-group (HMG)-like protein present in HeLa and Ehrlich ascites cells, rat and calf liver. The protein is designated P1 and has, depending on the source, a molecular mass 48-53 kDa and an amino acid composition which, like the HMG proteins, is characteriz…
Photoelectron spectra of single crystals of eight aromatic compounds were measured at several UV wavelengths. Useful results were obtained when sample charging was eliminated by inducing photoconduction through subsidiary illumination of the sample crystal with low energy light, and/or by a vapor-deposited gold grid o…
The initial oxidation stages of lactic acid by acid permanganate were investigated. The rate of the induction period was slow and then gradually increased. The kinetics of oxidation were second order, first order with respect to both lactic acid and Mn(VII). The reaction was acid catalyzed. Addition of Mn(II) ions lar…
Complex refractive index and complex dielectric permittivity and loss tangent data for polyethylene, polypropylene, poly-4 methyl-perrtene1 (TPX), and polytetrafluorethylene (Teflon) are presented over the frequency range 60-300 GHz. All of these nonpolar polymers are extremely low-loss materials. As in the microwave…
Abstract Ab initio configuration interaction calculations are reported on the lowest quintet, triplet, and singlet states of Fe II (P). Due to the large number of states found, a catalog of the low‐lying states is presented. Novel triplet and quintet charge‐transfer states are reported as low as 1.3 eV. These states a…