Electrophilic activation of acyl transfer reactions has been studied as a model for catalytic hydrolyses by proteolytic and lipolytic enzymes which have no active-site serine residues. Naked carboxylate ions in dipolar aprotic media readily cleave 4-n . . .

When 1,2-diphenylethylamine is pyrolyzed at 300°, the major products are ammonia, 1,2-diphenylethane, stilbene, J desoxybenzoin, and tetraphenylpyrrole. Preliminary experiments with alpha-phenylethylamine, 2,2-diphenylethylamine, n-hexadecylamine, and . . .

Chlorpromazine forms a complex species with Zn(II) at pH 7.0 with a stoichiometry of 1: 1. Chlorpromazine (CPZ) also reacts with Ca(II) and monohydrogen phosphate to form a Ca(II.CPZ.HPO4 2-complex. In order to calculate a formation constant for the C . . .

The deuterium isotope effect was used to investigate the rate limiting process in the combustion of nitramine propellants. Model propellant formulations containing either octahydro-1 ,3,5, 7-tetranitro-1 ,3,5,7-tetrazocine (HMX), hexahydro-1 ,3,5-trin . . .

Silver objects react with atmospheric gases, in particular S-containing species such as H2S, which results in formation of a disfiguring dark tarnish layer of Ag2S. Silver and its alloys have been greatly used in historical objects and the development . . .

Semicircular vibrating wire viscometer was constructed using a niobium wire (diam. 47 μm) to be used for liquid helium viscosity measurements. The wire was driven by an AC current under a constant magnetic field. The Lorentz force acting on the wire c . . .

The crystal and molecular structure of 1,2,6-trichlorotris- (pyridine) (III) was determined by single crystal x-ray diffractometry. The crystals were observed to be monoclinic and were indexed in the nonstandard space group, P21/n. The unit cell conta . . .

Synthesis of 1,3-diketone compounds was explored via condensations of various lithium enolates of methyl ketones with acid chlorides in THF at -78 °C. Salient features of this method are good yields and steric control of products. The simplest 1,3-dik . . .

A method for the regeneration of a decomposed ruthenium-based olefin metathesis catalyst to an in situ ruthenium-indenylidene complex was developed. The regeneration method allows for the treatment of the isolated decomposed inorganic product from the . . .