Terahertz dynamics at the actinide frontier: linking low-frequency vibrations, electronic structure, and bonding in molecular uranium complexes.

The local force constants values (Table S11) reveal a clear trend in bond stiffness for the three systems: U–O ( k a ≈ 2.46–2.54 mdyn Å −1 ) < Mo–O ( k a ≈ 2.58–2.79 mdyn Å −1 ) < W–O ( k a ≈ 2.91–3.13 mdyn Å −1 ).

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