Near-Infrared Magnetic Circularly Polarized Luminescence and Slow Magnetic Relaxation in a Tetrazinyl-Bridged Erbium Metallocene

IF 15.6 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of the American Chemical Society Pub Date : 2025-01-03 DOI:10.1021/jacs.4c10954

Niki Mavragani, Diogo A. Gálico, Alexandros A. Kitos, Muralee Murugesu

引用次数: 0

Abstract

The magnetic and magneto-optical properties of a tetrazinyl radical-bridged Er^III metallocene, [(Cp*₂Er^III)₂(bpytz^•–)][BPh₄] (1; Cp* = pentamethylcyclopentadienyl, bpytz = 3,6-bis(3,5-dimethyl-pyrazolyl)-1,2,4,5-tetrazine), are reported. As confirmed by these studies strong Ln-rad coupling is achieved, with 1 exhibiting slow magnetic relaxation under a 1000 Oe dc field. The optical and magneto-optical profile of 1 is completed by both near-infrared (NIR) luminescence and magnetic circularly polarized luminescence (MCPL), representing the first example of NIR MCPL with Er^III.

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四锌基桥接茂金属铒的近红外磁圆极化发光和慢磁弛豫

四氮基自由基桥接ErIII茂金属[(Cp*2ErIII)2(bpytz•-)][BPh4](1)的磁性和磁光性质报道了Cp* =五甲基环戊二烯基，bpytz = 3,6-二（3,5-二甲基吡唑基）-1,2,4,5-四嗪)。正如这些研究证实的那样，实现了强的Ln-rad耦合，其中1在1000 Oe直流场下表现出缓慢的磁弛豫。通过近红外（NIR）发光和磁圆偏振发光（MCPL）完成了1的光学和磁光剖面，代表了ErIII的近红外MCPL的第一个例子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of the American Chemical Society 化学-化学综合

CiteScore

24.40

自引率

6.00%

发文量

2398

审稿时长

1.6 months

期刊介绍： The flagship journal of the American Chemical Society, known as the Journal of the American Chemical Society (JACS), has been a prestigious publication since its establishment in 1879. It holds a preeminent position in the field of chemistry and related interdisciplinary sciences. JACS is committed to disseminating cutting-edge research papers, covering a wide range of topics, and encompasses approximately 19,000 pages of Articles, Communications, and Perspectives annually. With a weekly publication frequency, JACS plays a vital role in advancing the field of chemistry by providing essential research.