环金属化铱(III)金属有机骨架的发射能量控制

IF 1 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Australian Journal of Chemistry Pub Date : 2023-01-01 DOI:10.1071/ch23127

Carol Hua, Timothy U. Connell

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引用次数: 0

摘要

高效的固态发光材料是各种光电器件的关键部件。在这里，我们报道了三种金属有机框架，结合钙(II)和异电性铱(III)金属配体，它们含有相同的1,2-二亚胺辅助配体，但不同的环金属化配体。合成的框架具有相似的超分子结构，但根据环金属化配体的不同具有不同的发射特性。将钙(II)结合到金属配体上进一步影响骨架发射，这取决于三重态电荷转移(3MLLCT)或配体中心(3LC)跃迁到发射激发态的相对贡献。

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Controlling emission energy in metal–organic frameworks featuring cyclometalated iridium(III) linkers

Efficient solid-state luminescent materials are critical components in varied optoelectronic devices. Here, we report three metal–organic frameworks combining calcium(II) with heteroleptic iridium(III) metalloligands containing the same 1,2-diimine ancillary ligand but different cyclometalating ligands. The synthesised frameworks exhibit similar supramolecular structure but different emission properties depending on the cyclometalating ligand. Binding calcium(II) to the metalloligands further affects framework emission depending on the relative contribution of triplet charge transfer (3MLLCT) or ligand-centred (3LC) transitions to the emissive excited state.

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来源期刊

Australian Journal of Chemistry 化学-化学综合

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

1.3 months

期刊介绍： Australian Journal of Chemistry - an International Journal for Chemical Science publishes research papers from all fields of chemical science. Papers that are multidisciplinary or address new or emerging areas of chemistry are particularly encouraged. Thus, the scope is dynamic. It includes (but is not limited to) synthesis, structure, new materials, macromolecules and polymers, supramolecular chemistry, analytical and environmental chemistry, natural products, biological and medicinal chemistry, nanotechnology, and surface chemistry. Australian Journal of Chemistry is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.