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. 2023 May 15:293:122437.
doi: 10.1016/j.saa.2023.122437. Epub 2023 Feb 3.

Photoluminescent ellipsometric circular dichroism

Gustavo Gonçalves Dalkiranis  1 , Fernando Costa Basílio  2 , Roberto S Nobuyasu  3 , Silésia de Fátima Curcino da Silva  2 , Sandra Lucia Dias Nogueira  4 , Eralci Moreira Therézio  5 , Françoise Serein-Spirau  6 , Raigna A Silva  2 , Alexandre Marletta  2
Affiliations

Photoluminescent ellipsometric circular dichroism

Gustavo Gonçalves Dalkiranis et al. Spectrochim Acta A Mol Biomol Spectrosc. .

Abstract

A novel spectroscopic technique, photoluminescent ellipsometric circular dichroism (PECD), which distinguishes all radiative electronic transitions related to molecular chiral centers. Additionally, it is proposed as complementary to the ellipsometric Raman spectroscopy (ERS) technique, thus establishing a relationship between vibrational modes and electronic transitions, associated with molecular chiral centers. In this way, PECD turns into a powerful technique for chiral material characterization. The PECD technique was performed on a chiral oligomer (1R,2R)-diiminocyclohexane, and its derivative polymer. A complete photophysical characterization in solution was performed to corroborate the new PECD technique.

Keywords: (1R; 2R)-diiminocyclohexane; Ellipsometric Spectroscopy; Optical Activity; Photoluminescent ellipsometric circular dichroism.

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Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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