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The determination of trace levels of oxygen and carbon by charged particle activation analysis
(1969)
Research and development in ultrapure materials require analytical methods with sensitivities in the part per million to part per billion range for many of the light elements. Current analytical methods are of limited ...
Physical properties of some binuclear copper (II) complexes
(1969)
The copper(II) complexes of citric acid and N,N'-diglycylethyl-enediamine have been studied in aqueous solutions in the pH range 2 to 10 electron spin resonance, nuclear magnetic resonance, optical spectrophotometry, and ...
Diffusion coefficients of some transition metal complexes
(1969)
The polarographic and chronopotentiometric techniques were used to determine the diffusion coefficients of some mono- and polynuclear complexes of transition metal ions using the Ilkovic and Sand equations with electrochemical ...
The preparation of some aminoalkylphosphonic acids and related compounds
(1969)
Six phosphonocarboxylate esters were prepared. The esters synthesized were: [line break] triethyl phosphonoacetate [line break] diisopropyl methyl phosphonoacetate [line break] triethyl 4-methyl-2-phosphonopentanoate [line ...
The organometallic chemistry of the group VA elements : compounds of arsenic and phosphorus containing arsinic acid, arsonic acid, arsenyl, phophinous acid or phosphinic acid groups
(1969)
(Diethylamino)dichloroarsine and bis(diethylamino)chloroarsine have been investigated as intermediates in syntheses which lead to a variety of arsinic and arsonic acids containing branched alkyl chains and poly(polymethy ...
An NMR investigation of the metal ion and proton catalyzed reactions of some vitamin B-6 Schiff base systems
(1969)
The alpha and beta deuteration of the alpha amino acids valine and alpha aminobutyric acid is easily accomplished by heating D₂O solutions which are 1 M in the amino acid, 0.2 M in pyridoxal, and 0.1 M in aluminum(III) ...
Equilibrium studies of some anion radical solutions by electron spin resonance
(1969)
Ion pairing affects the E.S.R. spectra of cyclooctatetraene (COT) anion radical, influencing the rates and thermodynamic parameters of the line-broadening process and the disproportionation equilibrium, which controls the ...
The synthesis of some organophosphorus compounds and studies of the electron spin resonance spectra of their free radical anions
(1969)
This research describes the preparation of several new organophosphorus compounds. The e.s.r. (electron spin resonance) spectra of the radicals formed by the reaction of these and other organophosphorus compounds with ...
Synthesis of some 1-aminophosphonic acids containing sulfur and heterocyclic rings
(1969)
Three 1-aminoalkylphosphonic acids were synthesized, utilizing the modified Curtius reaction. Two of the amino phosphonic acids synthesized are analogs of naturally occurring 1-aminoalkylcarboxylic acids. The 1-aminoalky ...
A gas chromatographic investigation of secondary alcohol and ketone utilization by aerobic microorganisms
(1969)
Low molecular weight aliphatic alcohols and ketones represent a major class of synthetic chemicals and find extensive use as commercial solvents. Their occasional appearance in certain types of industrial waste effluents ...