DataVXAdvanced SciencePaper
journal article·2023-06Open access

Highly Boosting Circularly Polarized Luminescence of Chiral Metal–Imidazolate Frameworks

Xue‐Zhi Wang, Chuang‐Wei Zhou, Ji Zheng, Zhao‐Xia Lian, Meng‐Ying Sun, Yong‐Liang Huang, Dong Luo, Yan Yan Li, Xiao‐Ping Zhou

Advanced Science· Volume 10· Issue 17
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Source abstract

Abstract

Abstract To develop a simple and general method for improving the circularly polarized luminescence (CPL) performances of materials is of great significance. In this work, two pairs of CPL‐active homochiral metal–organic frameworks (MOFs) P/M‐Et and P/M‐Et(Cd) with eta topology are reported. In comparison to the reported isomorphic Zn‐imidazolate MOFs P‐Me and M‐Me, both luminescence dissymmetry factor (glum) and photoluminescence quantum yields (ΦPL) of P‐Et and M‐Et are largely improved by simply changing the methyl group to an ethyl group of ligands in P‐Et and M‐Et. Furthermore, the |glum| values are significantly amplified up to 0.015 from 0.0057 by introducing the non‐luminescent halogenated aromatics, while an enhanced fluorescence efficiency is observed simultaneously (from 27.2% to 47.3%). The figure of merit value is about 40 times larger than that of P‐Me and M‐Me. Similarly, the CPL performances of P/M‐Et(Cd) are improved by about five times after encapsulating fluorobenzene molecules. This work represents a new and simple method for developing CPL‐active MOF materials.
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Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Synthesis and Properties of Aromatic Compounds · Luminescence and Fluorescent Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications Jinan University Guangzhou 510632 P. R. China

Department of Radiology The First Affiliated Hospital of Jinan University Guangzhou 510632 P. R. China

Department of Medicinal Chemistry Shantou University Medical College Shantou 515041 P. R. China

Key Laboratory of Biomaterials of Guangdong Higher Education Institutes Engineering Technology Research Center of Drug Carrier of Guangdong Department of Biomedical Engineering Jinan University Guangzhou 510632 P. R. China

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · Natural Science Foundation of Guangdong Province · China Postdoctoral Science Foundation · Jinan University

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