ORTEP-III plots42of enantiomers Δ(δδδδ) in the unit cell of the complexes a), b), c), d), e)and f)(generated from CIF files using the Mercury software43). Ellipsoids are drawn at the 50 % probability level and, for clarity, H atoms of the macrocycle and solvent molecules are not shown. The side-on views of all the complexes are given with the same orientation. Dashed red arrow: axis passing through the N4macrocycle centroid (orange sphere) and Yb3+, solid red arrow: vector linking N4macrocycle centroid to the carbamate or amine protons;θ: angle between these two axes;d: distance from the Yb3+to the amine or carbamate proton. [a] calculated for the assumed solution structure of.
