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Amplified two-photon absorption in trans-A2B2-porphyrins bearing nitrophenylethynyl substituents.

ABSTRACT: We show that peripheral nitro groups enhance the maximum two-photon absorption cross-section of trans-A(2)B(2)-porphyrins bearing two phenylethynyl substituents by more than one order of magnitude. Maximum values as high as 1000 GM result from realization of suitable conditions for effective resonance enhancement along with a lowering of the energy and intensification of the two-photon allowed transitions in the Soret region.

SUBMITTER: Nowak-Krol A

PROVIDER: S-EPMC4090231 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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Amplified two-photon absorption in trans-A2B2-porphyrins bearing nitrophenylethynyl substituents.

Nowak-Król Agnieszka A Wilson Craig J CJ Drobizhev Mikhail M Kondratuk Dmitry V DV Rebane Aleksander A Anderson Harry L HL Gryko Daniel T DT

Chemphyschem : a European journal of chemical physics and physical chemistry 20121201 17

We show that peripheral nitro groups enhance the maximum two-photon absorption cross-section of trans-A(2)B(2)-porphyrins bearing two phenylethynyl substituents by more than one order of magnitude. Maximum values as high as 1000 GM result from realization of suitable conditions for effective resonance enhancement along with a lowering of the energy and intensification of the two-photon allowed transitions in the Soret region. ...[more]

PMID: 23197426

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