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Published on: May 21, 2019
Attachment of electron-withdrawing 2,4-dinitrobenzene groups to a cryptand-based receptor for Cu(II)/H+ specific
Bamaprasad Bag1, Parimal K Bharadwaj
1Chemistry Department, Indian Institute of Technology, Kanpur, 208016 India.
Abstract:
[reaction: see text] In a cryptand-based fluorescent signaling system with the configuration "fluorophore-spacer-receptor", attachment of the electron-withdrawing 2,4-dinitrobenzene groups to the cryptand receptor renders it highly selective for Cu(II). The system exhibits dual monomer and exciplex emissions in the presence of either of Cu(II) and H(+) as input with concomitant movements of one of the 2,4-dinitrobenzene groups.
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