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Zhang T, Zhang Y, He Z, Yang T, Hu X, Zhu T, Zhang Y, Tang Y, Jiao J. Recent Advances of Chiral Isolated and Small Organic Molecules: Structure and Properties for Circularly Polarized Luminescence. Chem Asian J 2024; 19:e202400049. [PMID: 38450996 DOI: 10.1002/asia.202400049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/08/2024]
Abstract
This paper explores recent advancements in the field of circularly polarized luminescence (CPL) exhibited by small and isolated organic molecules. The development and application of small CPL molecule are systematically reviewed through eight different chiral skeleton sections. Investigating the intricate interplay between molecular structure and CPL properties, the paper aims at providing and enlighting novel strategies for CPL-based applications.
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Affiliation(s)
- Tingwei Zhang
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Yue Zhang
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Zhiyuan He
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Tingjun Yang
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Xu Hu
- School of Chemistry and Chemical Engineering at, Shaanxi Normal University, Xi'an, 710062, P.R. China
| | - Tengfei Zhu
- Engineering Research Center of Oil and Gas Field Chemistry, Xi'an Shiyou University, Xi'an, 710065, China
| | - Yanfeng Zhang
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Yuhai Tang
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Jiao Jiao
- School of Chemistry and Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
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Saleh N, Sucre-Rosales E, Zinna F, Besnard C, Vauthey E, Lacour J. Axially-chiral boramidine for detailed (chir)optical studies. Chem Sci 2024; 15:6530-6535. [PMID: 38699281 PMCID: PMC11062121 DOI: 10.1039/d4sc00870g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/25/2024] [Indexed: 05/05/2024] Open
Abstract
The inclusion of boron atoms into chiral π-conjugated systems is an effective strategy to unlock unique chiroptical properties. Herein, the preparation and characterization of a configurationally stable axially-chiral boramidine are reported, showcasing absorption in the UV domain, deep-blue fluorescence (Φ up to 94%), and ca. |10-3| gabs and glum values. Detailed photophysical studies and quantum-chemical calculations clearly elucidate the deactivation pathways of the emissive state to triplet excited states, involving increased spin-orbit coupling between the lowest singlet excited state and an upper triplet state.
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Affiliation(s)
- Nidal Saleh
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Estefanía Sucre-Rosales
- Department of Physical Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Francesco Zinna
- Dipartimento di Chimica e Chimica Industriale, University of Pisa Via G. Moruzzi 13 56124 Pisa Italy
| | - Céline Besnard
- Laboratory of Crystallography, University of Geneva Quai Ernest Ansermet 24 1211 Geneva 4 Switzerland
| | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Department of Organic Chemistry, University of Geneva Quai Ernest Ansermet 30 1211 Geneva 4 Switzerland
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Tsuji M, Abuhadba S, Chen A, Ito M, Makhijani A, Kuwahara Y, Esipova T, Mani T. Red-Colored Circularly Polarized Luminescence from a Benzo-Fused BODIPY-BINOL Complex. J Phys Chem B 2023; 127:9781-9787. [PMID: 37915207 DOI: 10.1021/acs.jpcb.3c05496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Red emission with sharp bandwidth and high quantum yield is a desired characteristic for organic chromophores in optoelectronic, spintronic, and biomedical applications. Here, we observe circularly polarized luminescence (CPL) with these characteristics from a benzo-fused BODIPY-BINOL complex (1). Using time-resolved optical spectroscopy, electrochemistry, and density functional theory calculations, we showed that the emissive excited state of 1 does not have a charge-transfer (CT) character, unlike that of the regular BODIPY counterpart (2). The rigidity and the lack of CT character make this class of molecules an appealing platform for CPL-active molecules in the red spectral region, with ample room for improvement in the dissymmetry factor and brightness.
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Affiliation(s)
- Miu Tsuji
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Sara Abuhadba
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, Illinois 60660, United States
| | - Angela Chen
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Mio Ito
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Amrita Makhijani
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Yutaka Kuwahara
- Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
- International Research Organization for Advanced Science and Technology (IROAST), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Tatiana Esipova
- Department of Chemistry and Biochemistry, Loyola University Chicago, Chicago, Illinois 60660, United States
| | - Tomoyasu Mani
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, United States
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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