Synthesis, structure and nonlinear optical properties of two novel two-photon absorption chromophores.

Two triphenylamine-based derivatives that can be used as two-photon absorption chromophore, tris{4-[4-(3-trifluoromethyl-3-oxopanoyl)]phenyl}amine (1) and tris{4-[4-(3-phenyl-3-oxopanoyl)] phenyl} amine (2) were successfully synthesized and fully characterized by elemental analysis, IR, ¹H NMR and MS. The single crystal X-ray diffraction analysis showed that the molecules possess D-(π-A)₃ structures. One-and two-photon absorption and fluorescence in various solvents were experimentally investigated. A data recording experiment proved the potential application of these chromophores. [ABSTRACT FROM AUTHOR]