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. 2019 Jan 24;24(3):426. doi: 10.3390/molecules24030426

Figure 2.

Figure 2

(a) The crystal structure of the 23-mer intramolecular G4 d[TAGGG(TTAGGG)3] complexed with tetra-substituted naphthalene diimide ligands (Figure taken from [25]); (b) model of the NDI-G4 binding through π-stacking interactions.