Lanthanide(III) Complexes of Pyridine-N-Oxide Analogues of DOTA in Solution and in the Solid State. A Near Kind of Isomerism in Complexes of DOTA-like Ligands

Abstract

Lanthanide complexes of macrocyclic DO3A-pyNox ligand, found mostly as SA isomers, were investigated. New kind of izomerism was found which is based on different conformations of six-membered chelate ring created by coordination of pyridine-N-oxide.

Keywords

• MRI contrast agents
• nuclear magnetic resonance
• macrocyclic ligands
• gadolinium(iii) complexes
• crystal structures
• DOTA analog
• coordination equilibrium
• pyridine-N-oxide complexes
• luminescence measurements