Copper(ii) complexes of cyclams with N-(2,2,2-trifluoroethyl)-aminoalkyl pendant arms as potential probes for 19F magnetic resonance imaging

Complexes of Cu( ii ) with studied ligands show very short NMR longitudinal relaxation times T 1 of 19 F nuclei and good T 2 */ T 1 ratio. Thus, Cu( ii ) can be considered as a suitable metal ion for the design of efficient 19 F MRI/NMR relaxation agents.