Host-Matrix Interactions and Molecular Functionalization: Shaping the Delayed Emission Properties of Indenophenanthridine Derivatives.

IF 3 4区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY ChemPlusChem Pub Date : 2025-01-15 DOI:10.1002/cplu.202400571

Prasannamani Govindharaj, Jamuna Kannan, Sivakumar Shanmugam, Przemysław Data

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Abstract

The advancement of organic room temperature phosphorescence (RTP) materials has attracted considerable interest owing to their extensive applications. Their distinct advantages, including a metal-free composition, low toxicity, and facile synthesis under ambient conditions, make them highly desirable. This study examines the delayed fluorescence (DF) and RTP of metal-free, amorphous indenophenanthridine (IND)-based derivatives (1-10) and provides insights into molecular functionalisation and host matrix effects on delayed emission (RTP and DF). IND derivatives have been used in bioimaging and organic analyte detections; however, their delayed emission mechanism photophysical processes are poorly understood. This work examines the derivatives' physicochemical properties and time-resolved photophysics to determine how molecular structure, host interaction, and delayed emission properties relate. The described IND compounds show RTP and/or TTA (triplet-triplet annihilation) delayed fluorescence depending on the host environment. This research lays the groundwork for designing and developing new materials with increased RTP efficiency for future applications by detailing the detailed RTP processes and the crucial function of the host matrix.

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宿主-基质相互作用和分子功能化：塑造独立菲蒽啶衍生物的延迟发射特性。

有机室温磷光（RTP）材料的广泛应用引起了人们的广泛关注。它们独特的优点，包括无金属成分、低毒性和在环境条件下易于合成，使它们非常受欢迎。本研究考察了无金属、无定形独立菲蒽啶（IND）基衍生物（1-10）的延迟荧光（DF）和RTP，并提供了分子功能化和宿主基质对延迟发射（RTP和DF）的影响的见解。IND衍生物已用于生物成像和有机分析物检测；然而，人们对它们的延迟发射机制和光物理过程知之甚少。这项工作考察了衍生物的物理化学性质和时间分辨光物理学，以确定分子结构、宿主相互作用和延迟发射性质之间的关系。所描述的IND化合物根据宿主环境表现出RTP和/或TTA（三重湮灭）延迟荧光。本研究通过详细描述RTP过程和基质的关键功能，为设计和开发具有更高RTP效率的新材料奠定了基础。

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来源期刊

ChemPlusChem CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

5.90

自引率

0.00%

发文量

200

审稿时长

1 months

期刊介绍： ChemPlusChem is a peer-reviewed, general chemistry journal that brings readers the very best in multidisciplinary research centering on chemistry. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. Fully comprehensive in its scope, ChemPlusChem publishes articles covering new results from at least two different aspects (subfields) of chemistry or one of chemistry and one of another scientific discipline (one chemistry topic plus another one, hence the title ChemPlusChem). All suitable submissions undergo balanced peer review by experts in the field to ensure the highest quality, originality, relevance, significance, and validity.