Abstract
Tricarbonylrhenium(I) metallodendrimers functionalized with N,N‐2‐picolylamino chelates have been synthesized by the [2+1] approach. Methanol substitution reactions of the first‐ and second‐generation poly(propylene amine) tetra‐ and octanuclear rhenium metallodendrimers by a range of monodentate nucleophiles (i.e. 4‐dimethylaminopyridine, pyridine, and bromide ions) were investigated and compared to the substitution reactions of an analogous monomeric complex, fac‐[Re(CO)3(N,N‐bidentate)(CH3OH)]+. These detailed kinetic studies reveal that a greater activation is achieved using the metallodendrimers with no direct interactions between the metal centers.
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