Stimuli-Responsive Anion Transport through Acylhydrazone-Based Synthetic Anionophores

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Abstract
Photoswitchable acylhydrazone-based synthetic anionophores are reported. Single-crystal X-ray structure and H-1 NMR titration studies confirmed the chloride binding in solid and solution states. The ion transport activity of la was greatly attenuated through a phototriggered E to Z photoisomerization process, and the photoisomerized deactivated state showed high kinetic stability due to an intramolecular hydrogen bond. Switchable "OFF-ON" transport activity was achieved by the application of light and acid-catalyzed reactivation process.
Funding Information
  • University Grants Commission
  • Science and Engineering Research Board (EMR/2016/001897)
  • Department of Science and Technology, Ministry of Science and Technology, India (DST/INT/RUS/RSF/P-24)
  • Ministry of Education, Government of India