Sequential multiphoton absorption enhancement induced by zinc complexation in functionalized distyrylbenzene analogs |
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Authors: | Fabbrini Graziano Riccò Raffaele Menna Enzo Maggini Michele Amendola Vincenzo Garbin Mattia Villano Massimo Meneghetti Moreno |
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Institution: | Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo 1, 35131, Padova, Italy. |
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Abstract: | Functionalized distyrylbenzene analogs and , bearing a tris-(2-pyridylmethyl)amine-based receptor for Zn(2+), were synthesized by a Horner-Emmons-Wittig coupling reaction. It has been found that Zn(2+) complexation induces changes in the linear absorption spectrum that enhance a nonlinear sequential two-photon absorption of nanosecond pulses at 532 nm. This absorption was also found to depend on the nature of the substituent at the side benzene ring of the styrylbenzene structure. |
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