Gelation Enhanced Luminescence and Circular Polarized Luminescence of Pt(IV) Complex

IF 2.2 4区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

European Journal of Inorganic Chemistry Pub Date : 2025-03-04 DOI:10.1002/ejic.202400726

Ph. D. Xiaoqin Zhou, Xuewei Su, Chengyu Jiang, Qianqian Huang, Xunfu Zhou, Prof. Wangen Miao

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Abstract

Pt(IV) complexes has been studied for its synthesis and anticancer therapy, while little is focus on supramolecular self-assembly of Pt(IV) complexes. Herein, three Pt(IV) complexes of the form Pt(ppy)(pyⁿ)Cl₃ (n=1-3), (where ppy represents 2-phenylpyridine and py represents 4-phenylpyridine derivatives), were prepared and investigated their photophysical properties upon self-assembly in dichromethane. Among three complexes, Pt(ppy)(py³)Cl₃, where 4-phenylpyridine is decorated with long chain L-glutamated derivative, showed remarkably amplified chiral signal and enhanced luminescence with calculated photoluminescence quantum yield (Φ_PL) of 22.4 %, through forming supramolecular gel. While Pt(ppy)(py²)Cl₃ with short chain observed Φ_PL of 1.3 %, the same with that of Pt(ppy)(py¹)Cl₃ (py represents 4-phenylpyridine). Moreover, L/D-2-Pt gel showed displayed circular polarized luminesce with calculated dissymmetry factor value of ±0.005. This paper presents the gelation enhanced luminescence of Pt(IV) complex upon supramolecular self-assembly.

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Pt（IV）配合物的凝胶增强发光和圆偏振发光

Pt（IV）配合物的合成和抗癌治疗研究较多，但对Pt（IV）配合物的超分子自组装研究较少。本文制备了三种形式为Pt(ppy)(pyn)Cl3 （n=1-3）的Pt（IV）配合物（其中ppy代表2-苯基吡啶，py代表4-苯基吡啶衍生物），并研究了它们在二氯甲烷中自组装的光物理性质。其中，以长链l -谷氨酸衍生物修饰4-苯基吡啶的Pt(ppy)(py3)Cl3通过形成超分子凝胶，手性信号明显增强，发光量子产率（ΦPL）达到22.4%。短链Pt(ppy)(py2)Cl3与Pt(ppy)(py1)Cl3 （py代表4-苯基吡啶）的反应速率为ΦPL 1.3%。此外，L/D-2-Pt凝胶显示圆形偏振光，计算的不对称因子值为±0.005。本文报道了铂（IV）配合物在超分子自组装过程中的凝胶增强发光。

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来源期刊

European Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

4.30

自引率

4.30%

发文量

419

审稿时长

1.3 months

期刊介绍： The European Journal of Inorganic Chemistry (2019 ISI Impact Factor: 2.529) publishes Full Papers, Communications, and Minireviews from the entire spectrum of inorganic, organometallic, bioinorganic, and solid-state chemistry. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. The following journals have been merged to form the two leading journals, European Journal of Inorganic Chemistry and European Journal of Organic Chemistry: Chemische Berichte Bulletin des Sociétés Chimiques Belges Bulletin de la Société Chimique de France Gazzetta Chimica Italiana Recueil des Travaux Chimiques des Pays-Bas Anales de Química Chimika Chronika Revista Portuguesa de Química ACH—Models in Chemistry Polish Journal of Chemistry The European Journal of Inorganic Chemistry continues to keep you up-to-date with important inorganic chemistry research results.