Functionalized distyrylbenzene analogs 2 and 3, bearing a tris-(2-pyridylmethyl)amine-based receptor for Zn2+, were synthesized by a Horner–Emmons–Wittig coupling reaction. It has been found that Zn2+ 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.
Sequential multiphoton absorption enhancement induced by zinc complexation in functionalized distyrylbenzene analogs
RICCO', RAFFAELE;MENNA, ENZO;MAGGINI, MICHELE;AMENDOLA, VINCENZO;MENEGHETTI, MORENO
2007
Abstract
Functionalized distyrylbenzene analogs 2 and 3, bearing a tris-(2-pyridylmethyl)amine-based receptor for Zn2+, were synthesized by a Horner–Emmons–Wittig coupling reaction. It has been found that Zn2+ 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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