This work describes the synthesis and characterisation by electronic absorption spectroscopy, cyclic voltammetry and by a solvatochromic investigation of meso-tetraphenylporphyrins and their Zn-II complexes substituted at the beta pyrrolic position by a pseudo-linear, pi-delocalised organic linker carrying either an electron-withdrawing (pull) or electron-donating (push) group. The second-order NLO response of these push-pull porphyrinic chromophores has been investigated by the EFISH technique working with a non-resonant incident wavelength of 1.907 mu m. The porphyrin ring substituted at the beta pyrrolic position by an electron-acceptor pi-system behaves as a significant donor group, comparable to a ferrocenyl group or to a phthalocyanine. Unexpectedly, the porphyrin ring substituted at the beta pyrrolic position with an electron-donor pi-system shows a larger and significant second-order NLO response

Annoni, E., Pizzotti, M., Ugo, R., Quici, S., Morotti, T., Bruschi, M., et al. (2005). Synthesis, electronic characterisation and significant second-order non-linear optical responses of meso-tetraphenylporphyrins and their Zn-II complexes carrying a push or pull group in the beta pyrrolic position. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(19), 3857-3874 [10.1002/ejic.200500292].

Synthesis, electronic characterisation and significant second-order non-linear optical responses of meso-tetraphenylporphyrins and their Zn-II complexes carrying a push or pull group in the beta pyrrolic position

BRUSCHI, MAURIZIO;
2005-10

Abstract

This work describes the synthesis and characterisation by electronic absorption spectroscopy, cyclic voltammetry and by a solvatochromic investigation of meso-tetraphenylporphyrins and their Zn-II complexes substituted at the beta pyrrolic position by a pseudo-linear, pi-delocalised organic linker carrying either an electron-withdrawing (pull) or electron-donating (push) group. The second-order NLO response of these push-pull porphyrinic chromophores has been investigated by the EFISH technique working with a non-resonant incident wavelength of 1.907 mu m. The porphyrin ring substituted at the beta pyrrolic position by an electron-acceptor pi-system behaves as a significant donor group, comparable to a ferrocenyl group or to a phthalocyanine. Unexpectedly, the porphyrin ring substituted at the beta pyrrolic position with an electron-donor pi-system shows a larger and significant second-order NLO response
Articolo in rivista - Articolo scientifico
Scientifica
cyclic voltammetry; nonlinear optics; porphyrins; UV/Vis spectroscopy; zinc; APPROXIMATE COULOMB POTENTIALS; AUXILIARY BASIS-SETS; QUADRATIC HYPERPOLARIZABILITY; 1ST HYPERPOLARIZABILITY; STILBENE DERIVATIVES; PHYSICAL-PROPERTIES; AROMATIC-COMPOUNDS; METAL-COMPLEXES; NLO RESPONSE; PORPHYRINS
English
Annoni, E., Pizzotti, M., Ugo, R., Quici, S., Morotti, T., Bruschi, M., et al. (2005). Synthesis, electronic characterisation and significant second-order non-linear optical responses of meso-tetraphenylporphyrins and their Zn-II complexes carrying a push or pull group in the beta pyrrolic position. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(19), 3857-3874 [10.1002/ejic.200500292].
Annoni, E; Pizzotti, M; Ugo, R; Quici, S; Morotti, T; Bruschi, M; Mussini, P
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/13891
Citazioni
  • Scopus 73
  • ???jsp.display-item.citation.isi??? 73
Social impact