Metal Complexes of Pendant-Arm Macrocyclic Ligands

[摘要] A series of tris-alcohol substituted triazamacrocyclic ligands has been prepared, with the purpose of investigating the effect of increasing steric strain upon the physical and spectroscopic properties of the resulting first row transition metal complexes. The ligands all contain N3O3 donor sets and are potentially hexadentate. With pendant-arm hydroxyl groups, the ligands may behave as alcohol donors or alkoxide donors. At low pH values the ligands remain protonated and act as alcohol donors, at high pH values deprotonation occurs an the ligands behave as alkoxides, with a concomitant increase in pi-basicity.

[发布机构] University:University of Glasgow

[关键词] Organic chemistry