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Molecular Vibrations in Chiral Europium Complexes Revealed by Near-Infrared Raman Optical Activity
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SYSNO ASEP 0580544 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Molecular Vibrations in Chiral Europium Complexes Revealed by Near-Infrared Raman Optical Activity Author(s) Wu, Tao (UOCHB-X) ORCID
Bouř, Petr (UOCHB-X) RID, ORCID
Fujisawa, T. (JP)
Unno, M. (JP)Article number 2305521 Source Title Advanced Science. - : Wiley
Roč. 11, č. 1 (2024)Number of pages 7 s. Language eng - English Country US - United States Keywords chiral lanthanide complexes ; circularly polarized luminescence ; density functional theory ; Raman optical activity ; spectra simulations OECD category Physical chemistry R&D Projects GA23-05378S GA ČR - Czech Science Foundation (CSF) GA22-04669S GA ČR - Czech Science Foundation (CSF) EF18_053/0016940 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure e-INFRA CZ - 90140 - CESNET, zájmové sdružení právnických osob Method of publishing Open access Institutional support UOCHB-X - RVO:61388963 EID SCOPUS 85177210678 DOI 10.1002/advs.202305521 Annotation Raman optical activity (ROA) is commonly measured with green light (532 nm) excitation. At this wavelength, however, Raman scattering of europium complexes is masked by circularly polarized luminescence (CPL). This can be avoided using near-infrared (near-IR, 785 nm) laser excitation, as demonstrated here by Raman and ROA spectra of three chiral europium complexes derived from camphor. Since luminescence is strongly suppressed, many vibrational bands can be detected. They carry a wealth of structural information about the ligand and the metal core, and can be interpreted based on density functional theory (DFT) simulations of the spectra. For example, jointly with ROA experimental data, the simulations make it possible to determine absolute configuration of chiral lanthanide compounds in solution. Workplace Institute of Organic Chemistry and Biochemistry Contact asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Year of Publishing 2025 Electronic address https://doi.org/10.1002/advs.202305521
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