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Org Biomol Chem. 2019 Mar 19. doi: 10.1039/c9ob00398c. [Epub ahead of print]

Acid/base- and base/acid-switchable complexation between anionic-/cationic-pillar[6]arenes and a viologen ditosylate salt.

Author information

1
School of Materials and Chemical Engineering, Henan University of Engineering, Zhengzhou, 450006, China. qpduan@haue.edu.cn wf2003@haue.edu.cn.
2
School of Materials and Chemical Engineering, Henan University of Engineering, Zhengzhou, 450006, China. qpduan@haue.edu.cn wf2003@haue.edu.cn and School of Chemical Engineering and Food Science, Zhengzhou Institute of Technology, Zhengzhou, 450044, China. luckyluke@haue.edu.cn.

Abstract

Two new host-guest complexes between water-soluble anionic pillar[6]arene (WP6) or cationic pillar[6]arene (CP6) and a viologen ditosylate salt G·2TsO were constructed, among which one formed from WP6 and G2+ ions can be controlled by the sequential addition of an acid and a base (HCl and NaOH, respectively), whereas the other fabricated from CP6 and TsO- ions can be switched through the sequential addition of basic and acidic reagents (NaOH and HCl, respectively).

PMID:
30888007
DOI:
10.1039/c9ob00398c

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