Cyanide complexes of the transition metals
W. P. Griffith, Q. Rev. Chem. Soc., 1962, 16, 188 DOI: 10.1039/QR9621600188
Materials Literature
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The Electrochemistry of Semiconductors
Abstract not Available.
Thermal decomposition of magnesium hydroxide
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Crystal Chemistry of Pyrochlore
Analyses of natural minerals suggest the wide variety of both cationic and anionic substitutions possible in the pyrochlore structure. Limits on the possibilities of ionic substitution in pyrochlore have been determined by the preparation of a large number of compounds. An important feature found is that substitution…
Precipitation of polyelectrolytes by salts
Abstract Precipitation of poly(acrylic acid) by added salts has been investigated under various conditions. The PAA was neutralized to various degrees of ionization α by tetra‐ n ‐butyl ammonium hydroxide. The minimum salt concentration C̄ s at which precipitation occurs was determined at various polymer concentration…
Direct structural evidence for weak charge-transfer bonds in solids containing chemically saturated molecules
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FOUNDATIONS OF ELASTIC SHELL THEORY
C O : P R LI IN RIE AN THE GEOMETRY OF A SURFACE Relationships between space and surface tensors and their derivatives in normal coor inates Deformation and strain Stress and couple result ts; equations of equilibrium The constitutive equations of the linear theory Remarks on the general theorems of the linear heoryAD…
Bremsstrahlung During the Collision of Low-Energy Electrons with Neutral Atoms and Molecules
Abstract : This Memorandum discusses the bremsstrahlung radiation emitted during the collision of low-energy electrons with neutral atoms and molecules. The discussion is limited to the case of low-energies E or = 1 ev, and soft photons, h omega E, where E is the electron kinetic energy, and omega is the radiation fre…
Thermal Conductivity of Ge-Si Alloys at High Temperatures
The thermal conductivity of several Ge-Si alloys was determined in the temperature range 300\ifmmode^\circ\else\textdegree\fi{} to 1200\ifmmode^\circ\else\textdegree\fi{} K. A strikingly large decrease in the lattice thermal conductivity in the entire temperature range was found upon alloying. The temperature dependen…
SYNTHESIS OF CELLULOSE BY ACETOBACTER XYLINUM
Appearance of cellulose microfibrils in the medium of a suspension of cells of Acetobacter xylinum in buffered glucose solution was preceded by a stage during which the cellulose in the medium was amorphous within the available resolution. The size of the vertical axis of the microfibrils of the bacterial cellulose wa…
Kinetics of the electrocrystallization of thin films of calomel
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The Anodic Oxidation of Iron in a Neutral Solution
Iron was anodically oxidized in a borate‐boric acid buffer solution of p H 8.4 in the potential range extending from the active region to oxygen evolution. In the active region there appeared to be some on the surface. In the passive region the iron was covered with an oxide film 10–30Aå thick, depending on the potent…
Theoretical Analysis of Current Distribution in Porous Electrodes
General equations describing the behavior of porous electrodes are developed. These equations are used to determine the initial and the steady‐state conditions in one‐dimensional porous electrodes of uniform geometry and polarization parameters. In particular, it is shown that the current and reaction distributions in…
CYTOPLASMIC COMPONENTS IN HEPATIC CELL LYSOSOMES
De Duve and his colleagues, a few years ago, originated the concept of lysosomes based on the biochemical analysis of isolated cytoplasmic particles (1). He reported that a number of hydrolytic enzymes are concentrated in a fraction consisting of small subcellular units which sediments between the usual mitochondrial…
The detection of sub-units within the crystallographic asymmetric unit
In this paper, Rossmann & Blow describe how they have detected the existence of partial, approximate symmetry from a knowledge of the intensities alone. The effect of noncrystallographic symmetry, whether partial or total, results in decreasing the size of the structure to be determined, while the number of observable…
The plastic deformation of polycrystalline aggregates
For a number of metallic polycrystalline aggregates, it is shown experimentally that [sgrave]f, the flow stress at constant strain, is related to the grain diameter l by where [sgrave]0 and k are constants. This has the same form as the relationship between the lower yield point, when this occurs, and grain size. An e…
The dynamic properties of carbon black‐loaded natural rubber vulcanizates. Part I
Abstract The dynamic properties of a natural vulcanized rubber containing carbon black were studied for dynamic tensions of amplitude varying greatly. It was shown that both the elastic responses and viscosity change with amplitude of oscillation and with concentration and type of carbon black. The effects of thermal…
Melting process and the equilibrium melting temperature of polychlorotrifluoroethylene
A new method of estimating the equilibrium melting temperature, Tm, of a polymer isdescribed, and applied to polychlorotrifluoroethylene (PCTFE). Experimentally de-termined values of the so-called observed melting point,!F^(obs), are plotted as a function of the isothermal crystallization temperature, Tx. When freed o…
Zur Kenntnis der Azulene, IX. Azulen‐π‐Komplexe
Abstract Es werden Darstellung und Eigenschaften einiger kristallisierter Azulen‐Tetracyanäthylen‐Komplexe und deren Umwandlung in 1‐ bzw. 3‐Tricyanvinyl‐azulene beschrieben.
The structure of haemoglobin VIII. A three-dimensional Fourier synthesis at 5.5 Å resolution: determination of the phase angles
Abstract Determination of the phase angles of a crystalline protein requires a series of isomorphous heavy-atom compounds, with heavy atoms attached to different sites on the protein molecule. The asymmetric unit of horse oxyhaem oglobin was found to combine with heavy atoms at two different sites which are now known…