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Ternary inclusion complexes β-cyclodextrin (β-CD), rare earth metal ions (YbCl3, YCl3), and 1,8-naphthalene- diamine/ 1,5-naphthalenediamine are synthesized in basic aqueous media, which are characterized via 1H NMR and IR spectroscopy. The stoichiometric proportion of β-CD∶YbCl3∶1, 5-naphthalenedia- mine is 2∶1∶2, that of β-CD:YCl3∶1,8-naphthalenediamine is 2∶1∶1, and that of β-CD∶YbCl3∶1,8-naphthalenediamine is 2∶1∶1. The IR spectroscopy of the ternary inclusion complexes in the range of 935-1 000 cm-1 reveals the existence of the coordinate bond M---O or M---N. The possible conformations of the ternary inclusion complexes are depicted.
Ternary inclusion complexes β-cyclodextrin (β-CD), rare earth metal ions (YbCl3, YCl3), and 1,8-naphthalene- diamine / 1,5-naphthalenediamine are synthesized in basic aqueous media, which are characterized by 1H NMR and The stoichiometric proportion of β-CD: YbCl3: 1, 5-naphthalenedia mine is 2: 1: 2, that of β-CD: YCl3: 1,8- naphthalenediamine is 2: 1: 1, and that of β-CD: YbCl3: 1,8-naphthalenediamine is 2: 1: 1. The IR spectroscopy of the ternary inclusion complexes in the range of 935-1 000 cm-1 reveals the existence of the coordinate bond M --- O or M --- N. The possible conformations of the ternary inclusion complexes are depicted.