Abstract
HITHERTO it has seemed that thallium was the only heavy metal with but slight tendency to form water-insoluble normal and inner-complex salts with organic compounds of acid character. Monovalent thallium gave insoluble salts with the mercaptans thioglycollic acid-anilid, thioglycollic acid-β-amino-naphthalid (‘Thionalid')1 and mercaptobenzthiazole2. Of these compounds only the first and second can be considered as inner-complex salts. Since thallium belongs to the same group in the Periodic Table as the inner-complex-forming metals gallium and indium, the existence of inner-complex salts of trivalent thallium was to be expected ; and it has now been found that inner-complex salts of trivalent thallium with nitrosophenylhydroxylamine, α-nitrosonaphthyl-hydroxylamine, 8 hydroxychinoline, 5,7 brom-8 hydroxychinoline and Thionalid can be obtained in the following manner.
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Berg, R., and Roebling, O., Ber., 68, 403 (1935); z. angew. Chem., 48, 430 (1935).
Spacu, G., and Kuraš, M., z. anal. Chem., 102, 24 (1935); 104, 88 (1936).
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FEIGL, F. Inner-Complex Salts of Trivalent Thallium. Nature 161, 436 (1948). https://doi.org/10.1038/161436a0
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DOI: https://doi.org/10.1038/161436a0
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