NMR STUDIES OF 2,3,6-TRI-O-METHYLATED β-CYCLODEXTRIN INCLUSION-COMPLEXES WITH HYDROQUINONE AND SEMIQUINONE

Chinese Journal of Magnetic Resonance ›› 1998, Vol. 15 ›› Issue (3): 231-235.

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NMR STUDIES OF 2,3,6-TRI-O-METHYLATED β-CYCLODEXTRIN INCLUSION-COMPLEXES WITH HYDROQUINONE AND SEMIQUINONE

Yin Kailiang, Xu Duanjun, Xu Yuanzhi

Department of Chemistry, Zhejiang University, Hangzhou 310027

Received:1997-12-09 Revised:1998-01-23 Published:1998-06-05 Online:2018-01-13

Abstract

Abstract: Aqueous solution of inclusion complexes of host 2,3,6-tri-O-methylated β-Cyclodextrin with guest hydroquinone and semiquinone have been studied by ¹H NMR spectroscopy in this paper. The inclusion complex ion resulted from insertion of hydroquinone into the host cavity occurs easily, accompanyed with obvious changes of chemical shift of host methoxyl protons; whereas the same is not true for semiquinone.

Key words: 2,3,6-tri-O-methylated β-cyclodextrin, Inclusion-complexion, ¹H NMR, Hydroquinone, Semiquinone-anion-radical

Yin Kailiang, Xu Duanjun, Xu Yuanzhi. NMR STUDIES OF 2,3,6-TRI-O-METHYLATED β-CYCLODEXTRIN INCLUSION-COMPLEXES WITH HYDROQUINONE AND SEMIQUINONE[J]. Chinese Journal of Magnetic Resonance, 1998, 15(3): 231-235.

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NMR STUDIES OF 2,3,6-TRI-O-METHYLATED β-CYCLODEXTRIN INCLUSION-COMPLEXES WITH HYDROQUINONE AND SEMIQUINONE

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