Electronic Circular Dichroism-Circularly Polarized Raman (eCP-Raman): A New Form of Chiral Raman Spectroscopy

0556485 - ÚOCHB 2023 RIV DE eng J - Journal Article
Li, G. - Alshalalfeh, M. - Kapitán, J. - Bouř, Petr - Xu, Y.
Electronic Circular Dichroism-Circularly Polarized Raman (eCP-Raman): A New Form of Chiral Raman Spectroscopy.
Chemistry - A European Journal. Roč. 28, č. 20 (2022), č. článku e202104302. ISSN 0947-6539. E-ISSN 1521-3765
R&D Projects: GA MŠMT(CZ) EF16_019/0000729; GA ČR(CZ) GA22-04669S
Institutional support: RVO:61388963
Keywords : circularly polarized Raman * electronic circular dichroism * new chiral Raman spectroscopy * eCP-Raman * resonance Raman optical activity
OECD category: Physical chemistry
Impact factor: 4.3, year: 2022
Method of publishing: Limited access
https://doi.org/10.1002/chem.202104302

This Concept article summarizes recent work on the development of a new form of chiral Raman spectroscopy, eCP-Raman, which combines two spectroscopies: electronic circular dichroism (ECD) and circularly polarized Raman (CP-Raman). First, some puzzling observations while carrying out Raman optical activity (ROA) measurements of several transition metal complexes under resonance are described, as well as the search for the mechanisms responsible. Then an equation for quantifying the eCP-Raman contribution is presented, followed by several examples of how eCP-Raman influences the I-R-I-L spectra of achiral and chiral solvent molecules and of a number of chiral solutes under resonance. The conditions to extract resonance ROA, when the eCP-Raman contribution is minimized, are also discussed. Finally, we comment on the potential applications of eCP-Raman.
Permanent Link: http://hdl.handle.net/11104/0330704