A Multistate Molecular Switch Based on the 6,8-Rearrangement in Bromo-apigeninidin Operated with pH and Host-Guest Inputs

Nuno Basílio, Luís Cruz, Victor De Freitas, Fernando Pina

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The equilibrium between 6- and 8-bromo-apigeninidin is quantitatively displaced toward the formation of the former in the presence of cucurbit[7]uril because of the selective recognition of the 6-bromo isomer by the host. This phenomenon permits us to conceive a unidirectional multistate switch addressed with host-guest inputs and enables the reversible activation and deactivation of the 6-/8-bromo-apigeninidin dynamic molecular multistate through coupled host-guest and pH inputs.

Original languageEnglish
Pages (from-to)7053-7061
Number of pages9
JournalJournal of Physical Chemistry B
Volume120
Issue number29
DOIs
Publication statusPublished - 28 Jul 2016

Keywords

  • PK(A) SHIFTS
  • FLAVYLIUM COMPOUNDS
  • BETA-CYCLODEXTRIN
  • ANTHOCYANINS
  • COMPLEXES
  • SYSTEMS
  • REARRANGEMENT
  • NANOPARTICLES
  • PHOTOCHROMISM
  • STABILITY

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