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Side-arm donation

FIGURE 12. Solid-state structures of monoUthium and diUthium cyclopropenyl dimers. While in-plane dimerization is hampered by the donor-base in 30, side-arm donation promotes a planar R R CLi2-fragment in 31... [Pg.61]

FIGURE 23. Solid-state structures of lithium phenyl derivatives with single donating side-arm coordination... [Pg.81]

We now proceed to more complicated ionophores in order to testify the validity of this extrathermodynamic relationship and its hypothetical interpretation as an attempt to understand the nature of supramolecular interactions more generally and deeply. The thermodynamic parameters are plotted in Figures 16-19 for long glymes, (pseudo)cyclic ionophore antibiotics, lariat ethers with donating side-arm(s), and bis(crown ethers), whose structural changes upon complexation are schematically illustrated in Figure 20. [Pg.75]

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Side arms

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