Jiaxiang Liu , Yanan Guo , Fan Qu , Lei Lin , Sicheng Yao , Chunmei Yuan , Zhiming Zhang , Yuzhen Zhao , Xingqiang Lü
{"title":"Circularly polarized red luminescence based on new enantiopure menthol-functionalized tris-β-diketonate-Eu3+ binary complexes","authors":"Jiaxiang Liu , Yanan Guo , Fan Qu , Lei Lin , Sicheng Yao , Chunmei Yuan , Zhiming Zhang , Yuzhen Zhao , Xingqiang Lü","doi":"10.1016/j.jlumin.2025.121206","DOIUrl":null,"url":null,"abstract":"<div><div>Aromatic 1,10-phenanthroline (Phen) derivatives have been extensively utilized as N^N-ancillary <em>co</em>-ligands in achiral <em>tris</em>-<em>β</em>-diketonate-Eu<sup>3+</sup> binary complexes with efficient pure red-light. However, circularly polarized (CP) red-light of chiral <em>tris</em>-<em>β</em>-diketonate-Eu<sup>3+</sup> binary complexes assembled from chiral Phen-derivatives, has never been reported. Herein, based on the synthesized menthol-substituted (at the 5-position) enantiopure Phen-derivative (<strong><em>D</em>-Phen</strong> or <strong><em>L</em>-Phen</strong>), two new chiral <em>tris</em>-<em>β</em>-diketonate-Eu<sup>3+</sup> binary complexes [Eu(tta)<sub>3</sub>(<em>D</em>-Phen)] (<strong>1</strong>) and [Eu(tta)<sub>3</sub>(<em>L</em>-phen)] (<strong>3</strong>) (<strong>Htta</strong> = 2-thenoyltrifluoroacetone) are obtained. The two Eu<sup>3+</sup> enantiomers can exhibit the bright high-purity red-light (<em>Φ</em><sub>PL</sub> = 65–66 %) in combination with the detectable CPL signal (|<em>g</em><sub>lum</sub>| ≈ 0.01 at <sup>5</sup>D<sub>0</sub>→<sup>7</sup>F<sub>1</sub>). This study engenders chiral <em>tris</em>-<em>β</em>-diketonate-Eu<sup>3+</sup> binary complexes (such as [Eu(O^O)<sub>3</sub>(chiral<em>-</em>Phen)] et al.) a new platform forward to efficient chiroptical organo-Eu<sup>3+</sup> compounds.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121206"},"PeriodicalIF":3.3000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231325001462","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Aromatic 1,10-phenanthroline (Phen) derivatives have been extensively utilized as N^N-ancillary co-ligands in achiral tris-β-diketonate-Eu3+ binary complexes with efficient pure red-light. However, circularly polarized (CP) red-light of chiral tris-β-diketonate-Eu3+ binary complexes assembled from chiral Phen-derivatives, has never been reported. Herein, based on the synthesized menthol-substituted (at the 5-position) enantiopure Phen-derivative (D-Phen or L-Phen), two new chiral tris-β-diketonate-Eu3+ binary complexes [Eu(tta)3(D-Phen)] (1) and [Eu(tta)3(L-phen)] (3) (Htta = 2-thenoyltrifluoroacetone) are obtained. The two Eu3+ enantiomers can exhibit the bright high-purity red-light (ΦPL = 65–66 %) in combination with the detectable CPL signal (|glum| ≈ 0.01 at 5D0→7F1). This study engenders chiral tris-β-diketonate-Eu3+ binary complexes (such as [Eu(O^O)3(chiral-Phen)] et al.) a new platform forward to efficient chiroptical organo-Eu3+ compounds.
期刊介绍:
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.