A novel ligand N-4-hydroxyacetophenone isonicotinoyl hydrazone and its manganese(II) nickel(II) metal complexes have been synthesized. The synthesized Schiff base characterized by physical state determination, melting point solubility measurements in different solvents, infrared, proton nuclear magnetic resonance, mass spectrometric powder X-ray spectroscopic techniques. thermal properties of t...

Reaction of salicylaldehyde thiosemicarbazone (L), 2-hydroxyacetophenone thiosemicarbazone (L) and 2-hydroxynapthaldehyde thiosemicarbazone (L) with [Ru(dmso)4Cl2] affords a family of three dimeric complexes (1), (2) and (3) respectively. Crystal structure of the complex (3) has been determined. In these complexes, each monomeric unit consists of one ruthenium center and two thiosemicarbazone l...

Periodic outbreaks of spruce budworm (SBW) affect large areas of ecologically and economically important conifer forests in North America, causing tree mortality and reduced forest productivity. Host resistance against SBW has been linked to growth phenology and the chemical composition of foliage, but the underlying molecular mechanisms and population variation are largely unknown. Using a gen...

A gradient reversed phase HPLC method was developed and validated for the analysis of related substances in zonisamide (1,2-benzisoxazole-3-methanesulfonamide), using a Waters Symmetry C8 (150*3.9 mm) column with a flow rate of 1.0 ml/min and detection at 280 nm. The mobile phase component A consisted of a mixture of 0.02 M aqueous potassium dihydrogen phosphate-acetonitrile-methanol (75:10:15 ...

Two new tetradentate oxovanadium(IV) and iron(II) Schiff base complexes have been prepared by the interaction of vanadyl(IV) iron(III) acetylacetonate with ligand obtained from reaction ethylenediamine 5?-(N-methyl-N-phenylaminomethyl)-2?-hydroxyacetophenone in methanol. These characterized means different spectroscopic techniques such as UV–visible, FT-IR, mass spectrometry, elemental analysis...

The interface-selective second harmonic generation (SHG) nonlinear optical spectroscopy and the surface tension method have been used to measure the effect of electrolyte on the adsorption isotherm of 4-hydroxyacetophenone (4-HA) at the air-solution interface. It was observed that high NaCl concentration favors adsorption of organic molecules to the air-solution interface. Measurements of the p...

The shoulder gland secretions of captive males of the Indian flying fox (Pteropus giganteus), the little golden-mantled flying fox (P. pumilus), the island flying fox (P. hypomelanus), and the large flying fox (P. vampyrus) were examined by gas chromatography-mass spectrometry. Sixty-five compounds, including hydrocarbons, carboxylic acids, alcohols, aldehydes, ketones, esters, and amides, were...

Lactobacillus brevis ADH (LBADH) is an alcohol dehydrogenase that is commonly employed to reduce alkyl or aryl ketones usually bearing a methyl, an ethyl or a chloromethyl as a small ketone substituent to the corresponding (R)-alcohols. Herein we have tested a series of 24 acetophenone derivatives differing in their size and electronic properties for their reduction employing LBADH. After plott...