Synthesis, Structure, and Complexing Property of p-tert-Butylcalix |
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Authors: | Nomura Hosoda Taniguchi |
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Affiliation: | Industrial Technology Center of Wakayama Prefecture, 60 Ogura, Wakayama 649-6261, Japan. |
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Abstract: | p-tert-Butylcalix[4]arene 1,3-digallate, which contains a nonbonded close contact between galloyl groups, was synthesized and its structure was determined by dynamic (1)H NMR and X-ray crystallography. The electronic spectra showed that a new absorption band of the complexes appeared at a longer wavelength region upon adding Ag(+) ion. This spectral shift was explained in terms of the interaction between the facing galloyl groups of the lower rim of the calixarene framework. |
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