Diphenylamino-substituted tristyryl vs. triphenyl isocyanurates: improved conjugation has minimal impact on two-photon absorption†,10.1039/C8NJ01904E

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Diphenylamino-substituted tristyryl vs. triphenyl isocyanurates: improved conjugation has minimal impact on two-photon absorption†

Nicolas Richy,Anissa Amar,Abdou Boucekkine,Thierry Roisnel,Marie P. Cifuentes,Mark G. Humphrey,Mireille Blanchard-Desce,Olivier Mongin,Frédéric Paul

New Journal of Chemistry Pub Date : 06/15/2018 00:00:00 , DOI:10.1039/C8NJ01904E

Abstract

This contribution reports the synthesis of C₈₇H₆₀N₆O₃ (3-NPh₂), the tristyryl analogue of the triphenylisocyanurate C₈₁H₅₄N₆O₃ (2-NPh₂) which was previously demonstrated to be an active two-photon absorber. Contrary to expectation, planarization and extension of the central π-system does not lead to a marked improvement of the two-photon absorption cross-section.