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Title11, 11, 12, 12-Tetracyano-4, 5-pyrenoquinodimethanes: air-stable push–pull o-Quinodimethanes with S2 fluorescence
Author(s)García, Raúl
More, Sandeep
Melle-Franco, M.
Mateo-Alonso, Aurelio
Issue date2014
PublisherAmerican Chemical Society
JournalOrganic Letters
Abstract(s)The synthesis and properties of 11,11,12,12-tetracyano-4,5-pyrenoquinodimethanes (4,5-TCNPs), a new family of isolable and air-stable o-quinodimethanes, are reported. The ortho disposition of the dicyanomethane substituents strongly polarizes the pyrene framework to promote broad and intense intramolecular charge-transfer transitions. In addition, spectroscopic studies reveal that 4,5-TCNPs violate Kasha’s rule and emit from the S2 level.
AccessRestricted access (UMinho)
Appears in Collections:CCTC - Artigos em revistas internacionais

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