Impact of molecular structure on intermolecular interactions and organic luminescence in supramolecular systems

Savarimuthu Philip Anthony (1) , Sunil Varughese (2) , Sylvia M Draper (2)

1 Scool of Chemistry
2 Chemistry

Supramolecular chemistry provides a versatile approach to tune organic solid state luminescence by controlling the molecular organization through weak interactions. In this study, we have successfully tuned the solid state luminescence of 2-cyano-3(4-(diphenylamino)phenyl)acrylic acid (CDPA) by co-crystallizing with substituted pyridines. The position of methyl group on the pyridine (4-picoline, 3-picoline, 2-picoline) has a dramatic effect on the supramolecular interactions formed, from usual carboxylic acid-pyridine interactions to deprotonation of CDPA in the crystal lattice and that allows to tune the CDPA solid state luminescence from 587 nm to 548 nm gradually.

Mots clés: Physical Sciences

Savarimuthu Philip Anthony, Sunil Varughese, Sylvia M Draper. Impact of molecular structure on intermolecular interactions and organic luminescence in supramolecular systems. Journal of Physical Organic Chemistry, 2010, 23 (11), pp.1074. ⟨10.1002/poc.1757⟩. ⟨hal-00589440⟩