title: Synthesis and photo-physical properties of fluorescent 1,3,5-triazine styryl derivatives.
abstract: BACKGROUND
  Organic fluorophore contains well-defined D-π-A (Donor-π system-Acceptor) push-pull system have wide application in the field of NLO, OLED and high tech application. Electron donor diphenyl, triphenyl and carbazole conjugated with electron acceptor terminal through π-system were reported recently for high-tech applications. N,N-Dialkyl substituted 1,3,5-triazine also acts as donor keeping this idea in mind we developed D-π-A styryl dyes.
  
  
  RESULTS
  Novel "Y"-shaped acceptor-π-donor-π-acceptor type of compounds were synthesized from 4,4'-((6-(4-(diethylamino)phenyl)-1,3,5-triazine-2,4diyl)bis(oxy)) dibenzaldehyde (DIPOD) as electron donors and different active methylene compounds as electron acceptors by conventional Knoevenagel condensation reaction. Their photophysical and thermal properties were investigated.
  
  
  CONCLUSIONS
  It was found that the strong electron acceptor-donor chromophoric system of these compounds showed high Stoke's shift and excellent thermal stability. Compounds showed positive solvatofluorism behavior from nonpolar to polar solvent. All compounds have good thermal stability.
authors.affiliation: Department of Intermediate and Dyestuff Technology, Institute of Chemical Technology (Formerly UDCT), N, P, Marg, Matunga, Mumbai-400 019, Maharashtra, India. n.sekar@ictmumbai.edu.in.
authors.forename: Vikas S
authors.initials: VS
authors.lastname: Padalkar
authors.forename: Vikas S
authors.initials: VS
authors.lastname: Patil
authors.forename: N
authors.initials: N
authors.lastname: Sekar