title: Attachment of electron-withdrawing 2,4-dinitrobenzene groups to a cryptand-based receptor for Cu(II)/H+ specific exciplex and monomer emissions.
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.
authors.affiliation: Chemistry Department, Indian Institute of Technology, Kanpur, 208016 India.
authors.forename: Bamaprasad
authors.initials: B
authors.lastname: Bag
authors.forename: Parimal K
authors.initials: PK
authors.lastname: Bharadwaj