The planes of the aromatic rings of the title compound, C(12)H(12)N(2)O, are twisted by 50.33 (15)°. The phenol O atom is a hydrogen-bond donor to the pyridine N atom, resulting in the formation of an eight-membered ring in the mol-ecule. The amino N atom is a hydrogen-bond donor to the phenol O atom of an adjacent mol-ecule; this hydrogen bond leads to the formation of a helical chain that run...

The title compound, (C(4)H(12)NO(3))[ReO(4)], contains two cations and two anions in the asymmetric unit, related by a non-crystallographic centre of symmetry. The crystal structure is stabilized by an extensive hydrogen-bonding network with the formation of puckered layers perpendicular to [001]. In the tris-(hydroxy-meth-yl)ammonium cations, intra-molecular O-H⋯O hydrogen bonds are present wi...

Abstract. In order to study the effect of carbon impurity in plasma on tungsten first wall, hydrogen-carbon mixed ion beam was irradiated to tungsten. It was found that very small amount of carbon (~0.3% or more) significantly enhanced blister formation. According to XPS analysis, all of tungsten atoms in a top surface were combined with carbon atoms to form tungsten carbide (WC) layer (~6 nm t...

Ab initio calculations of binary metallic systems often predict ordered compounds in contrast to empirical reports of solid solutions or disordered phases. These discrepancies are usually attributed to slow kinetics that retains metastable structures at low temperatures. The Fe-V system is an example of this phenomenon, in which we predict two ordered stable ground states, Fe3V and FeV3, wherea...

The mechanism of the cytotoxic reaction of leukocytes to Trypanosoma dionisii was investigated. Cytotoxicity was measured by release of [99mTc]pertechnetate from labeled protozoa. Both granulocytes and lymphocytes were found to be cytotoxic to antibody-coated T. dionisii. The reaction was inhibited by diethyldithiocarbamate and by potassium cyanide, both of which inhibit myeloperoxidase. Myelop...

Peroxiredoxins (Prdxs), a family of antioxidant and redox-signaling proteins, are plentiful within the heart; however, their cardiac functions are poorly understood. These studies were designed to characterize the complex changes in Prdxs induced by oxidant stress in rat myocardium. Hydrogen peroxide, a Prdx substrate, was used as the model oxidant pertinent to redox signaling during health and...

Intermetallic compounds based on hydrogen absorbing elements usually form stable hydrides. This is the case for PdZr2. Surprisingly, ZrPd2 does not absorb hydrogen although both compounds have the same crystal structure and satisfy the empirical geometrical criteria for hydride formation. Results of ab initio calculations reveal an unanticipated purely electronic origin. These results have impl...

the influence of mo particle size on the catalytic activity and product selectivity of alkalized mos2 nanocatalysts has been investigated. nanocatalysts are prepared using a microemulsion technique with water-to-surfactant ratios of 1-12. three different techniques, including xrd, tem, and hydrogen chemisorption were used to determine the molybdenum average particle size and their activity and ...