Proton Exchange and Inversion at Coordinated sec-Amine Centers. Particularly Rapid Inversion at Sterically Strained 'Planar' N in Some [Co(cyclen)(S-AlaO)]~2+ and [Co(Mecyclen)(S-AlaO)]~2+ Complexes1

摘要

It is shown that the syn(N), syn (O)- isomer (3) is the intermediate on the reaction path for interconversion between the syn(N), anti(O)- (1) and syn(O), anti(N)- (2) diastereomets of syn(Me)-[Co(Mecyclen)(S-AlaO)]~2+ and [Co(cyclen)(S-AlaO)]~2+.