Synthesis and Investigation of Geometrical Isomerism of Trinitro(aminoacidato)amminecobaltate(III) Complex Salts
- 1 July 1971
- journal article
- research article
- Published by Wiley in Zeitschrift für anorganische und allgemeine Chemie
- Vol. 383 (3) , 341-350
- https://doi.org/10.1002/zaac.19713830316
Abstract
Synthesis of a new class of coordination compounds of cobalt(III) with amino acids (glycine, alanine, α‐amino‐butyric acid and norvaline), i.e., trinitro(aminoacidato)‐amminecobaltate(III) salts, M[CoNH3Am(NO2)3], is described. The synthesis consists in the action of amino acid alkali salts on the Erdmann salt or peripheral isomer of trinitrotriamminecobalt(III). The same compounds were also obtained by direct synthesis, i.e., by hydrogen peroxide oxidation of cobalt(II) to cobalt(III) in the presence of the corresponding ligands. The peripheral configuration of the complexes obtained was determined by chemical and physical methods (electronic and PMR spectroscopy). The compounds are intermediates formed in obtaining of dinitrobis(aminoacidato)cobaltate(III) salts by the reaction of amino acids with the Erdmann salt or peripheral isomer of trinitrotriamminecobalt(III).Keywords
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