Spectroscopic and crystal field consequences of fluoride binding by [Yb⋅DTMA](3+) in aqueous solution

Yb⋅DTMA forms a ternary complex with fluoride in aqueous solution by displacement of a bound solvent molecule from the lanthanide ion. [Yb⋅DTMA⋅F](2+) and [Yb⋅DTMA⋅OH2 ](3+) are in slow exchange on the relevant NMR timescale (