可见光强发射共轭三、四基（咔唑基）偶氮烯的合成。

IF 4.2 2区化学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Molecules Pub Date : 2025-06-28 DOI:10.3390/molecules30132797

Amantay Iskanderov, Nurlan Merkhatuly, Ablaykhan Iskanderov, Saltanat Abeuova, Pavel Vojtisek

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引用次数: 0

摘要

通过交叉偶联反应，高收率合成了1,2,3-三（咔唑基）唑烯和1,2,3,6-四（咔唑基）唑烯。所得到的化合物表现出显著的吸收和发射可见光区域的能力，在400到600纳米的范围内。研究表明，含有1、2、3、6位咔唑基取代基的唑烯具有独特的光物理性质，表现为在444和490 nm处的蓝色光致发光区（λPL）有强烈的发光，这是原来的唑烯所没有的。这一特征是由于咔唑基取代基的供体性质对偶氮烯的电子结构有很强的影响，为允许的HOMO-LUMO电子跃迁创造了条件。

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Synthesis of Conjugated Tris- and Tetrakis (Carbazolyl) Azulenes with Intense Emission in the Visible Range.

New conjugated carbazolyl-substituted azulenes, such as 1,2,3-tris(carbazolyl)azulene and 1,2,3,6-tetrakis(carbazolyl)azulene, were synthesized via cross-coupling reactions in high yields. The resulting compounds exhibit a significant ability to absorb and emit light in the visible region, in the range of 400 to 600 nanometers. Studies have shown that azulene with carbazolyl substituents at positions 1, 2, 3, and 6 possesses unique photophysical properties, manifested as intense emission in the blue photoluminescence region (λ_PL at 444 and 490 nm), which is not observed in the original azulene. This feature arises due to the donor properties of carbazolyl substituents, which have a strong effect on the electronic structure of azulene, creating the conditions for a permitted HOMO-LUMO electronic transition.

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来源期刊

Molecules 化学-有机化学

CiteScore

7.40

自引率

8.70%

发文量

7524

审稿时长

1.4 months

期刊介绍： Molecules (ISSN 1420-3049, CODEN: MOLEFW) is an open access journal of synthetic organic chemistry and natural product chemistry. All articles are peer-reviewed and published continously upon acceptance. Molecules is published by MDPI, Basel, Switzerland. Our aim is to encourage chemists to publish as much as possible their experimental detail, particularly synthetic procedures and characterization information. There is no restriction on the length of the experimental section. In addition, availability of compound samples is published and considered as important information. Authors are encouraged to register or deposit their chemical samples through the non-profit international organization Molecular Diversity Preservation International (MDPI). Molecules has been launched in 1996 to preserve and exploit molecular diversity of both, chemical information and chemical substances.