Ernő Brücher, Béla Győri, József Emri, Sándor Jakab, Zoltán Kovács, Piroska Solymosi, Imre Tóth,
The macrocycles 1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-7,16-bis(malonate)(oddm), -7-malonate (odmm) and -7,16-bis(α-methylacetate)(oddp) have been synthesized. Their protonation constants and the stability constants of their complexes ML with Mg2+, Ca2+, Sr2+, Ba2+, Mn2+, Zn2+, Cd2+ and Pb2+ have been determined by pH-potentiometry at a 1 : 1 metal-to ligand ratio. The macrocycle oddm possesses high selectivity for the large metal ions. The complex [Sr(oddm)]2– is two orders of magnitude more stable ...
Tópico(s): Crystal structures of chemical compounds
1995 - Royal Society of Chemistry | Journal of the Chemical Society. Dalton transactions