Fig. 3.25 Schematic representation of self-assembly of 67 though H-bonding and p–p stacking
interactions and its coordination to Ln
3+ forming luminescent metal–organic gels. Reprinted with
permission from [91]. Copyright © 2015, Royal Society of Chemistry
Fig. 3.26 a AFM images of gel-Tb and prepared with different Tb
3+ concentrations, b AFM
images of gel-Eu prepared with different Eu
3+ concentrations, and 3D models of right-handed
helical structures of c gel-Tb and d gel-Eu of the internal and external helical structures (upper,
helical pitch; below, the titling angle between lanthanide ion coordinated two molecules).
Reprinted with permission from [92]. Copyright © 2017, American Chemical Society
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3 Metal–Organic Gels