Abstract
Synthesis of 5,7,12,14-tetramethyl-1,4,8,11-tetraazacyclotetradeca-4,6,11,13-tetraenatogold(III) perchlorate is described. The behavior of complex cations of gold(III) with macrocyclic ligands—N,N"-bis(2-aminoethyl)-2,4-pentanediiminatogold(III) (A2+) and 5,7,12,14-tetramethyl-1,4,8,11-tetraazacyclotetradeca-4,6,11,13-tetraenatogold(III) (B+)—is studied in aqueous solutions. The formation of A2+and B+complexes and the protonation of a B+complex are investigated, and the solubility products are determined for perchlorate salts of A2+and B+cations. The six-membered β-diiminate rings of the complex cation B+are suggested to be nonequivalent in aqueous solutions: one of them either undergoes intramolecular rearrangement or becomes entirely open.
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Afanas'eva, V.A., Mironov, I.V. Gold(III) Macrocyclic Complexes in Aqueous Solution. Russian Journal of Coordination Chemistry 27, 878–883 (2001). https://doi.org/10.1023/A:1013069230354
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DOI: https://doi.org/10.1023/A:1013069230354