Structure and Stability Constants of Cadmium(II) Complexes with Cryptand[2.2.2]

The present contribution reports on the stability constants of mononuclear, protonated, and binuclear cadmium(II) complexes with cryptand[2.2.2] in aqueous solution at a temperature of 298 K that were determined potentiometrically. The structure and geometric parameters of cadmium(II) cryptates were elucidated using quantum-chemical calculations. NMR studies of the resulting complexes were performed to confirm their structure.