This review of the chemistry of the alkali amides is a continuation of two earlier reviews (17) which have appeared on this subject. In the present review the authors have summarized the work on the inorganic and organic chemistry of the alkali amides which has appeared in the literature from 1937 through 1952. In addition, a considerable amount of previously unpublished material is discussed. Whenever possible, the authors have tried to interpret and evaluate critically the material presented and to call attention to those areas of research which have not been investigated or which should be studied further. Although it has not been convenient to discuss all of the present material under the same headings as were used previously, the changes have not been so extensive as to make cross references difficult.
The stepwise formation constants for the chloride complexes of palladium(II) have been determined from spectrophotometric measurements made at 21, 29.5 and 38°. The reaction between palladium(II) chloride and acetylacetone in aqueous solution has also been investigated, but from pH measurements at 20, 30 and 40°. The logarithm of the over-all formation constant for PdCU-2, estimated to be 15.8 at 25°, is observed to be of the same order of magnitude as that for PtCU-2 and HgCl,-2. The thermodynamic stability of bis-(acetylacetonato)-palladium(II) is greater than would be anticipated from considerations of the electronegativity and the second ionization potential of palladium.
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