Photoluminescent ellipsometric circular dichroism

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2023-05, Vol.293, p.122437, Article 122437
• Main Authors: Gonçalves Dalkiranis, Gustavo, Costa Basílio, Fernando, Nobuyasu, Roberto S., de Fátima Curcino da Silva, Silésia, Lucia Dias Nogueira, Sandra, Moreira Therézio, Eralci, Serein-Spirau, Françoise, Silva, Raigna A., Marletta, Alexandre
• Format: Article
• Language: English
• Subjects: 1R; 2R)-diiminocyclohexane; Chemical Sciences; Ellipsometric Spectroscopy; Optical Activity; Photoluminescent ellipsometric circular dichroism
• ISSN: 1386-1425; 1873-3557
• DOI: 10.1016/j.saa.2023.122437

[Display omitted] •The photoluminescent ellipsometric circular dichroism technique was developed.•PECD distinguishes electronic transitions related to molecular chiral centers.•Vibrational modes and electronic transitions are related in chiral molecules. 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.