Wei-Dong Liu, Si-Wei Ying, Zi-Jing She, Han Xu, Ming-Xuan Zhang, La-Sheng Long, Lan-Sun Zheng, Xiang-Jian Kong
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引用次数: 0
Abstract
Lanthanide-titanium-oxo clusters (LTOCs) exhibit promising luminescence potential owing to their unique core structures. In this study, the impact of ligand-to-metal charge transfer (LMCT, M = TiIV) is systematically elucidated on the luminescence of LTOCs through crystal structure analysis, theoretical calculations, and photophysical measurements. The results reveal that the existence of the LMCT state disrupts the normal energy transfer process, thereby causing the failure of photo-excitation in LTOCs. By strategically replacing LMCT-inducing ligands with non-LMCT counterparts in Eu2Ti4 and Eu2Ti6 clusters, the remarkable enhancement is achieved in luminescence intensity. This study provides valuable insights into the rational design of high-performance luminescent LTOCs, highlighting ligand coordination environments as a critical design factor in LTOCs.
镧系钛氧团簇（LTOCs）由于其独特的核心结构而具有良好的发光潜力。本研究通过晶体结构分析、理论计算和光物理测量，系统地阐明了配体到金属电荷转移（LMCT, M = TiIV）对LTOCs发光的影响。结果表明，LMCT态的存在破坏了正常的能量传递过程，从而导致LTOCs光激发失效。通过将Eu2Ti4和Eu2Ti6簇中的lmct诱导配体策略性地替换为非lmct配体，可以显著增强发光强度。本研究为高性能发光LTOCs的合理设计提供了有价值的见解，突出了配体配位环境是LTOCs设计的关键因素。
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Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments.
With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology.
Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.
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