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. Author manuscript; available in PMC: 2013 Aug 7.
Published in final edited form as: Anal Chem. 2012 May 23;84(15):6278–6287. doi: 10.1021/ac300527z

Figure 5.

Figure 5

Strategies to optimize of the lifetime of the bound solvent molecule (τM) include: (A) Steric compression via the addition of a methylene group to the coordinating acetate arms or chelate backbone,61 and (B) addition of sterically bulky groups to the chelate backbone.62