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Synthesis and Photophysical Properties of Push–Pull Structures Incorporating Diazines as Attracting Part with a Fluorene Core
Author(s) -
Denneval Charline,
Moldovan Oana,
Baudequin Christine,
Achelle Sylvain,
Baldeck Patrice,
Plé Nelly,
Darabantu Mircea,
Ramondenc Yvan
Publication year - 2013
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201300458
Subject(s) - fluorene , chemistry , moiety , diazine , chromophore , conjugated system , ring (chemistry) , fluorenone , photochemistry , core (optical fiber) , pyrrole , combinatorial chemistry , stereochemistry , organic chemistry , polymer , materials science , composite material
We report, herein, the synthesis of new push–pull chromophores that incorporate a diazine ring as the electron‐withdrawing part and an N , N ‐dimethylaniline moiety as the electron‐donating part. Both of which are connected to a fluorene core. The length of the conjugated backbone was increased by incorporating ethynyl linkers and triazole rings on the both sides of the fluorene. The optical and two‐photon absorption (TPA) properties were investigated, which exhibitied high quantum yields (up to 70 %), significant Stokes shifts, and good TPA cross‐sections.