Abstract
In this paper, the non-linear optical properties of representative core-modified expanded porphyrins have been investigated with an emphasis on the structure-property relationship between the aromaticity and conformational behaviour. It has been shown that the measured two-photon absorption cross section (σ 2) values depend on the structure of macrocycle, its aromaticity and the number of π-electrons in conjugation.
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Gokulnath, S., Chandrashekar, T.K. Expanded porphyrins as third order non-linear optical materials: Some structure-function correlations. J Chem Sci 120, 137–142 (2008). https://doi.org/10.1007/s12039-008-0016-1
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DOI: https://doi.org/10.1007/s12039-008-0016-1