NMR Spectroscopic Correlations for a Series of Triangularµ-Oxoruthenium Acetate Clusters containing SubstitutedPyridine Ligands†

Abstract

The ¹ H and ¹³ C NMR chemicalshifts of the acetate and pyridine ligands α-position) in aseries of[Ru₃ O(CH₃ CO₂ )₆ L₃ ]⁺ clusters are linearly correlated with thepK _a (L), but exhibit variable trends at thevarious positions as a consequence of the inductive, paramagneticanisotropy and ring current effectsand the ligand interactionsthrough the Ru₃ O core.

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