Applying methyl jasmonate can mimic the defense response to insect damage in broccoli and enhances the production of glucosinolates, especially inducible indolyl GS-neoglucobrassicin. Previous studies have suggested that glucosinolates and their hydrolysis products are anti-carcinogenic. Therefo...

High-performance liquid chromatography with electrochemical detection was used to measure N-acetyldopamine and N-acetyl 5-hydroxytryptamine in the cerebral ganglia of the African migratory locust, Locusta migratoria (fifth instar) exposed to lindane, a chlorinated insecticide. Locusts were poiso...

The distributions of trimethyldibenzothiophenes (TMDBTs), the relationship between TMDBTs and trimethylbiphenyls (TMBPs) and the application of TMDBTs as maturity indicators have been investigated in a set of lacustrine shales from the Eocene Shahejie Formation in the Liaohe Basin, East China. T...

Based on the thermodynamic stabilities and molecular simulation, two trimethyldibenzothiophene molecular indicators, that is, 2,4,6-/(1,4,6 + 1,4,8 + 3,4,6)-trimethyldibenzothiophene (TMDBT) and (2,4,7 + 2,4,8)-/(1,4,6 + 1,4,8 + 3,4,6)-TMDBT (the numbers indicate the position of methyl-substitut...

The methoxycarbonylation of selected 1-alkenes catalyzed by various neutral and cationic palladium(II) complexes, containing mixed N^N^X (X = O and S) tridentate ligands 2-[(3,5-dimethyl-1H-pyrazol-1-yl)methyl]-6-(phenoxymethyl)pyridine (L1), 2-[(3,5-di-tert-butyl-1H-pyrazol-1-yl)methyl]-6-(phen...

A series of nickel(II) complexes bearing phenyl ether-pyrazol ligands [NiCl2L] (Ni1: L = 3,5-dimethyl-1-(3-phenoxypropyl)-1H-pyrazole; Ni2: L = 1-(3-phenoxypropyl)-3-phenyl-1H-pyrazole; Ni3: L = 3,5-di-tert-butyl-1-(3-phenoxypropyl)-1H-pyrazole; Ni4: L = 1-(3-phenoxypropyl)-1H-pyrazole) were syn...

A series of complexes of the type M(Phca2en)X2, where Phca2en=N,N′-bis(β-phenyl-cinnamaldehyde)-1,2-diiminoethane, M(II)=Co, Ni or Zn and X=Cl, Br, I or NCS have been synthesized and characterized. The crystal and molecular structures of Co(Phca2en)Cl2 (2), Ni(Phca2en)Br2 (5) and Zn(Phca2en)Cl...

10,10-Dimethylanthrone (III), dibenzosuberone (IV) and benzophenone show very similar photochemical behaviour. Their reactivity towards hydrogen donors is about the same of III and benzophenone and one order of magnitude lower for IV: for example the rate constants for 2-propanol quenching in be...

Despite the close resemblance of the molecular structures of the two title compounds, major differences were found in their adsorption characteristics on Na, Cu, Mg, Ni, Fe, and Al montmorillonite. These differences are reflected in electronic and infrared (IR) spectra, in orientational IR spect...

The possible photosolvolysis of 5-substituted 5H-dibenzosuberols (3–6) has been studied in aqueous methanol. Only the parent system, 5H-dibenzosuberol (3) reacts via photosolvolysis. On extended photolysis, compounds 3–6 undergo a fragmentation reaction (Φ=0.02–0.08) to give 9,10-dihydrophen...

A series of derivatives of dibenzofuran and dibenzosuberol block rhinovirus replication in vitro as judged by their ability to hinder the cytopathic effect in cells infected with HRV14 or HRV16. Both the number and the size of viral plaques were reduced effectively by treatment with these compou...

FENCAMFAMIN hydrochloride was developed by E. Merck in Darmstadt, West Germany. Klebelsberg (1) reported improvements in muscular activity and anti-stress action with this drug, while Ziegler (2) observed increases of vitality in elderly patients. Holliday et al. (3) have noted an antifatigue ac...

Special polymers on polyethylene-naphthalate (PEN) basis contain 2,6-naphthalene dicarboxylic acid (2,6-NDA) as building block. Besides various routes for the synthesis, oxidation of substituted dialkylnaphthalenes seems to be advantageous. Our research focused on the oxidative conversion of 2,6...

9,10-Dihydro-4,5-dimethylphenanthrene has two rotational isomers around the pivot bond. This compound shows a complex signal pattern of an AA′BB′ type for the four methylene protons in the NMR spectrum. The inversion process is analysed using the density matrix method, and at various temperatu...

Bissilylated urea-bridged periodic mesoporous organosilicas (DUP-PMOs) were synthesized by the co-condensation of N,N′-diureylenepyridine-bis-[(3-propyl)triethoxysilane)] (DUP) and tetraethyl orthosilicate (TEOS) using a triblock copolymer (Pluronic P123) as a structure-directing agent at vario...

First-principles investigations of the Terbium oxide TbO are performed on structural, elastic, mechanical and thermodynamic properties. The investigations are accomplished by employing full potential augmented plane wave FP-LAPW method framed within density functional theory DFT as implemented i...

A series of new ternary arsenides RECo5As3 (RE = Y, Gd, Tb, Dy, Ho, Er) was synthesized from pure constituents. The crystal structure of TbCo5As3 and ErCo5As3 was determined by X-ray single-crystal diffraction, the structure of the other arsenides was refined from X-ray powder diffraction data. ...

The diffusion of manganese into gallium arsenide has been studied as a function of temperature and arsenic pressure by means of a radioactive tracer method. In some cases, anomalous diffusion profiles have been obtained that are best fit by two overlapping complementary error functions. Diffusio...

The title compound was prepared by reaction of the elements at 700°C in the presence of iodine. Its crystal structure— determined from single-crystal diffractometer data—is isotypic with that of β-V4As3: C2/m, a = 1341.1(2) pm, b = 369.34(5) pm, c = 962.8(1) pm, β = 101.97(1)°, and R = 0.0...

Thin films of the ferromagnetic material manganese arsenide (MnAs) have been grown for the first time by atmospheric pressure metalorganic chemical vapour deposition (MOCVD), using tricarbonylmethylcyclopentadienyl manganese (TCM) and arsine. A detailed study of the MnAs growth characteristics a...