Neuropharmacological actions of some binuclear lanthanide(III) complexes.
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Binuclear lanthanide(III) compounds are of great interest because of the potential of their mutual Ln(3+)-Ln(3+) electronic couplings to produce unusually sharp images in magnetic resonance and fluorescence imaging of biological tissue. The toxicity and neuropharmacological properties of the water soluble and stable neutral binuclear complex [La(api)](2) were compared with those of binuclear complexes with lower water stability, and the components used in their syntheses. The order of the 24-h LD(50) (mg/kg body wt.) of the compounds in mice was: salicylaldehyde (2.24)