Inorganic analytical chemistry reagents

We start with butane-2,3-dione dioxime, more commonly known as dimethylglyoxime (dmg). It is a classic reagent for the analysis of NP, the green aqueous solution of metal ions transforming into a vibrantly red precipitate of Ni(dmg)2 complex it is one of the stars of the show in Ponikvar and Liebman s analytical chemistry chapter in the current volume. Here the stereochemistry is well-established and well-known—both OH groups are found on the same side as their adjacent CH3 group on the butanedione backbone. There have been several measurements of the enthalpy of formation of this species for which we take the one associated with this inorganic analytical chemistry application, i.e. with diverse metal complexes and chelates . 

Oximes, hydroxamic acids and related species are often used as reagents in inorganic analytical chemistry for precipitation, gravimetric and volumetric determinations as well as for preconcentration, extraction, derivatizations and subsequent determination of analyte using instrumental techniques. A brief review of analytical chemistry in general and of these species in particular follows. 

Our review on the use of oximes and hydroxamic acids in inorganic analytical chemistry showed that these reagents are/were most frequently used for gravimetric determinations, determinations based on complexation, spectrophotometric determinations and separations, while their use for column separations, as electrode sensors, as supporting electrolytes or compounds that enhance sensitivity of determination is less common. Additionally, it was noticed that the analytical chemistry of anions is less advanced than that of cations and for this reason this chapter was limited to analytical chemistry of metallic cations. 

The scientific interests of Anatoly K. Babko ranged widely, especially in regard to fundamental aspects of analytical chemistry, applications of organic reagents in inorganic analysis, chemistry of complex compounds (including heteropolyacids), analytical applications of complex compounds in photometry, luminescence and chemiluminescence, ion chromatography, and liquid-liquid extraction. 

Freizer, H., Reactive Groups as Reagents Introduction and Inorganic Applications. In Treatise on Analytical Chemistry, ed. by I.M. Kolthoff and RJ. Elving., 2nd ed. Vol. 3, New York, Interscience Pubishers, 1983. 

F. Holmes, Organic Reagents in Inorganic Analysis, in Comprehensive Analytical Chemistry , eds. C. L. Wilson and... 

The two parts of the present volume contain seventeen chapters written by experts from eleven countries. They cover computational chemistry, structural chemistry by spectroscopic methods, luminescence, thermochemistry, synthesis, various aspect of chemical behavior such as application as synthons, acid-base properties, coordination chemistry, redox behavior, electrochemistry, analytical chemistry and biological aspects of the metal enolates. Chapters are devoted to special families of compounds, such as the metal ynolates and 1,2-thiolenes and, besides their use as synthons in organic and inorganic chemistry, chapters appear on applications of metal enolates in structural analysis as NMR shift reagents, catalysis, polymerization, electronic devices and deposition of metals and their oxides. 

Hydrobromic acid is used in the manufacture of inorganic bromides for use in photography, pharmaceuticals, industrial drying, textile finishing, engraving, lithography, and in fire retardants. It is also used as a reagent in analytical chemistry. 

The review articles in Analytical Chemistry are a very important source of information. Mellon is the author of those on light absorption spectrometry, aided recently by Boltz. Although they are principally concerned with the absorptiometric determination of inorganic substances using organic reagents, the spectrophotometrist will find much meat in them also. See Table X. 

Apart from analytical applications, reports of the use of crowns in synthetic organic chemistry have been quite common. Typically, the solubilization of an inorganic reagent (such as potassium permanganate) or the production of a free counter ion (such as the fluoride ion) in an organic solvent such as benzene has formed the basis for many of these reports. 

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